Hahnemühle‘s Albet LabScience brand is a range of products designed for general filtration applications and complex filtration processes in life science and analytical applications in chemical and biological laboratories. The technical specifications of our membranes and syringe filters allow their use in areas where reproducibility and consistency are of major importance.
Quality
Our syringe filters undergo strict quality controls during and after production. The storage life of the finished products in the
warehouse is constantly monitored. Each filter holder undergoes the following five tests: bubble point, burst pressure, membrane absorption, flow rate and extractable substances. The range includes filter holders for the reliable separation of microorganisms and particles in liquids, air and other gases. Clear and sterile filtration, sample production, sterile aeration and medical applications are just some of the areas where disposable filter holders are typically used. They are available in different pore sizes and with different hydrophilic or hydrophobic membrane materials.
Our microfiltration range also includes membrane units. The first step towards successful analysis is choosing the right membrane unit. We offer you different membrane filters with pore sizes from 0.2 μm – 8 μm for particle removal or for the collection of the microorganisms to be examined from solutions. Various cellulose-based membranes and polymer materials cover a wide range of application areas, from clarification and sample preparation to sterile and air filtration to aeration and microbiological control. See our quick and easy to use guidelines on page 8f, which will help you to decide which product is perfect for you.
Drawing on decades of experience, Agape Water Solutions provides custom-designed industrial water solutions for long-term service across a diverse range of industries. Products offered by Agape Water Solutions include water membrane filtration systems.
Cross Flow or Tangential Flow Membrane Filtration (TFF) to Enable High Solids...njcnews777
Cross Flow or Tangential Flow Filtration (TFF) Membrane Plants are used in Desalination, Brackish Groundwater Treatment, High Chloride Surface Water Treatment, Waste Water Treatment Plant Effluent Reuse, Biopharmaceutical, Food & Protein Applications for removal of undesired constituents and harvesting of desireable products. Cross flow membrane filtration technology has been used widely in industry globally. Filtration membranes can be polymeric or ceramic, depending upon the application. The principles of cross-flow filtration are used in reverse osmosis, nanofiltration, ultrafiltration and microfiltration. When purifying water, it can be very cost effective in comparison to the traditional evaporation methods. Techniques to improve performance of cross flow filtration include:
Backwashing: In backwashing, the transmembrane pressure is periodically inverted by the use of a secondary pump, so that permeate flows back into the feed, lifting the fouling layer.
Clean-in-place: Clean-in-place systems are typically used to remove fouling from membranes after extensive use. The CIP process may use detergents, reactive agents such as sodium hypochlorite and acids and alkalis such as citric acid and sodium hydroxide.
Concentration: The volume of the fluid is reduced by allowing permeate flow to occur. Solvent, solutes, and particles smaller than the membrane pore size pass through the membrane, while particles larger than the pore size are retained, and thereby concentrated. In bioprocessing applications, concentration may be followed by diafiltration.
Diafiltration: In order to effectively remove permeate components from the slurry, fresh solvent may be added to the feed to replace the permeate volume, at the same rate as the permeate flow rate, such that the volume in the system remains constant. This is analogous to the washing of filter cake to remove soluble components. Dilution and re-concentration is sometimes also referred to as "diafiltration."
Drawing on decades of experience, Agape Water Solutions provides custom-designed industrial water solutions for long-term service across a diverse range of industries. Products offered by Agape Water Solutions include water membrane filtration systems.
Cross Flow or Tangential Flow Membrane Filtration (TFF) to Enable High Solids...njcnews777
Cross Flow or Tangential Flow Filtration (TFF) Membrane Plants are used in Desalination, Brackish Groundwater Treatment, High Chloride Surface Water Treatment, Waste Water Treatment Plant Effluent Reuse, Biopharmaceutical, Food & Protein Applications for removal of undesired constituents and harvesting of desireable products. Cross flow membrane filtration technology has been used widely in industry globally. Filtration membranes can be polymeric or ceramic, depending upon the application. The principles of cross-flow filtration are used in reverse osmosis, nanofiltration, ultrafiltration and microfiltration. When purifying water, it can be very cost effective in comparison to the traditional evaporation methods. Techniques to improve performance of cross flow filtration include:
Backwashing: In backwashing, the transmembrane pressure is periodically inverted by the use of a secondary pump, so that permeate flows back into the feed, lifting the fouling layer.
Clean-in-place: Clean-in-place systems are typically used to remove fouling from membranes after extensive use. The CIP process may use detergents, reactive agents such as sodium hypochlorite and acids and alkalis such as citric acid and sodium hydroxide.
Concentration: The volume of the fluid is reduced by allowing permeate flow to occur. Solvent, solutes, and particles smaller than the membrane pore size pass through the membrane, while particles larger than the pore size are retained, and thereby concentrated. In bioprocessing applications, concentration may be followed by diafiltration.
Diafiltration: In order to effectively remove permeate components from the slurry, fresh solvent may be added to the feed to replace the permeate volume, at the same rate as the permeate flow rate, such that the volume in the system remains constant. This is analogous to the washing of filter cake to remove soluble components. Dilution and re-concentration is sometimes also referred to as "diafiltration."
Filtration is commonly the mechanical or physical operation which is used for the separation of products like solids from fluids by interposing a medium through which only the fluid can pass.
Filtration is a physical, biological or chemical operation that separates solid matter and fluid from a mixture with a filter medium that has a complex structure through which only the fluid can pass
Fil-Trek Corporation offers bag and cartridge filter housings, as well as industrial filters for many industries. They are located at 70 Fleming Dr Cambridge, ON N1T 2B1 (519) 623-7448.
Filtration is commonly the mechanical or physical operation which is used for the separation of products like solids from fluids by interposing a medium through which only the fluid can pass.
Filtration is a physical, biological or chemical operation that separates solid matter and fluid from a mixture with a filter medium that has a complex structure through which only the fluid can pass
Fil-Trek Corporation offers bag and cartridge filter housings, as well as industrial filters for many industries. They are located at 70 Fleming Dr Cambridge, ON N1T 2B1 (519) 623-7448.
Desalination, the process of removing salts from seawater.
To overcome the water scarcity different desalination processes are used over the word.Some the most common methods are described in it.
With the brand Albet LabScience, we are providing you with a wide range of products for challenging filtrations in chemical and biological laboratories, as well as for life science and analytical applications. Our extensive portfolio of filter papers is known in laboratories throughout the world for its purity and consistency. As a globally operating company, Hahnemühle is focusing, in addition to the standard product range for laboratories, on the production of filter papers that are tailored to the customers’ requirements, as part of its core business. Our papers are known as reliable products on the market, which always provide reproducible filtration results. Many years of production know-how, a constant exchange of ideas with customers and internal research & development have made us a reliable partner when customised filter papers are required for sensitive areas of application, even in the case of new formulas with functional fibres.
The main source of particle contamination in HPLC columns originate in the sample to be analysed. Using a syringe filter before the sample is injected into the analytical instrument ensures that the sample is at its purest before the analysis begins. Greyhound Chromatography offer a wide range of syringe filters, suitable for any sample analysis.
Hahnemühle laid the foundations for its range of filter papers with the development of the three filter paper types 589/1 to 589/3, gradually increasing it with the addition of types 2992, 595, 604 and also with the high purity hardened filter papers 1573 to 1575. To this day, each of these types is still synonymous with the respective product.
The Hahnemühle product line “with the three red stripes” has grown steadily and until 2004, was fabricated and distributed under the Schleicher & Schuell brand. Since 2008 Hahnemühle has marketed these papers under it’s own name.
Greyhound Chromatography's Q-Fil Syringe Filters set the new Quality standard for today’s laboratory syringe filters. Manufactured from the highest quality medical grade, high density polypropylene. Q-Fil Syringe Filters provide excellent chemical compatibility with acids, alcohols, bases, ethers, glycols, ketones and oils.
Every colour-coded filter is printed with details of the membrane material and its pore size on the outside of the filter and every box is labelled with the batch number making them ideal for traceability, GLPs and validation purposes.
Appreciated by customers across the nation for supplying, trading and wholesaling a broad array of high quality pharmaceutical hygiene & cleanRoom
products, June Enterprises started its operations in December 2013.
In a short span of time, the company expanded its breadth of operations to provide CleanRoom Products to the Indian pharmaceutical industry &
neighboring countries.
The product range offered by June Enterprises includes: – Sterilization Monitoring & Validation Products, ATCC Culture, Cleanroom Garments &
Accessories, Cleanroom Supplies, Critical Cleaning Products, Products for Food & Facilities, Sterilization Packaging & Sealing Products, Products for
Stores & Warehouses, USP Class Silicone Tubing among others.
In order to ensure high standards of quality, the offered range of Cleanroom Products is procured and sourced from trusted and reliable Leaders in their
® ® respective product ranges for example Sterilization Products by Mesa Labs, Cleaning & disinfectants by Contec & ATCC by Microbiologics.
With years of experience, expertise and a proven track-record of helping many companies with its CleanRoom Products & Sterilization needs, June
Enterprises has established an enviable position in the PHARMA, FOOD & HOSPITAL segments.
JUNE Enterprises is an ISO 9001:2015 certified company.
Learn More: https://www.juneenterprises.com/
Types of pipettes and its applications
Micropipettes are utilized in the laboratory to transfer small quantities of liquid, usually down to 0.1 uL. They are most commonly used in chemistry, biology, forensic, pharmaceutical, and drug discovery labs, among other .
Hahnemühle manufactures and offers absorbent filtration media with high quality and
highest purity. These media provide excellent performance and consistent reproducibility
for the manufacture of reliable In vitro Diagnostic Devices (IVDD).
Special materials have been developed for immunodiagnostic device platforms, which must
give consistent, fast and accurate results. A variety of cotton linters, cellulose and glass
fibre filters are the first choice for device manufacturers for over 30 years related to Lateral
Flow and Flow Through assays, as well as dip sticks, such as critical “Point of Care” devices.
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Mit der Entwicklung der Rezepturen der Filterpapiersorten 589/1 bis 589/3 legte Hahnemühle den Grundstein ihres Filtrierpapiersortiments. Nach und nach erfolgte die
Produktion der Sorten 2992, 595, 604 sowie der hochreinen Hartfiltrierpapiere 1573 bis 1575; jede für sich bis heute ein Inbegriff für Qualitätspapier.
Das Sortiment der Hahnemühle mit den “drei roten Streifen” wuchs stetig und wurde bis zum Jahr 2004 erfolgreich durch Schleicher & Schuell konfektioniert und vertrieben. Seit 2008 bietet Hahnemühle diese Filtrierpapiere unter eigenem Namen an.
With the brand Albet LabScience, we are providing you with a wide range of products for challenging filtrations in chemical and
biological laboratories, as well as for life science and analytical applications. Our extensive portfolio of filter papers is known in
laboratories throughout the world for its purity and consistency.
As a globally operating company, Hahnemühle is focusing, in addition to the standard product range for laboratories, on the
production of filter papers that are tailored to the customers’ requirements, as part of its core business
Mit der Marke Albet LabScience bieten wir Ihnen eine Vielzahl an Produkten für anspruchsvolle Filtrationen im chemischen
und biologischen Labor, sowie für Life-Science und analytische Anwendungen. Das breite Portfolio unserer Filtrierpapiere ist in
Laboratorien weltweit für seine Reinheit und Konstanz bekannt.
Als global agierendes Unternehmen konzentriert sich Hahnemühle neben dem Standardsortiment für das Labor im Kerngeschäft
auf die Fertigung maßgeschneiderter Filtrierpapiere nach Kundenwunsch.
Mit der Marke Albet LabScience bieten wir Ihnen eine Vielzahl an Produkten für anspruchsvolle Filtrationen im chemischen
und biologischen Labor, sowie für Life-Science und analytische Anwendungen. Das breite Portfolio unserer Filtrierpapiere ist in Laboratorien weltweit für seine Reinheit und Konstanz bekannt. Als global agierendes Unternehmen konzentriert sich Hahnemühle neben dem Standardsortiment für das Labor im Kerngeschäft auf die Fertigung maßgeschneiderter Filtrierpapiere nach Kundenwunsch. Unsere Papiere sind als zuverlässige Produkte im Markt bekannt, die stets reproduzierbare Filtrationsergebnisse liefern. Langjähriges Produktions-Know-How, stetiger Austausch mit Kunden und interne Forschung & Entwicklung haben uns zum verlässlichen Partner gemacht, wenn individuelle Papieranfertigungen für sensible Anwendungsbereiche benötigt werden, auch bei neuen Rezepturen mit funktionellen Faserstoffen.
Erfahrung
Bereits im Jahr 1883 erfolgte die erste Filtrierpapier Produktion der Sorten 589/1, 589/2 und 589/3. Bis heute verwenden wir ausschließlich erstklassige Rohstoffe. Damit sichern wir die stets gleichbleibende hohe Qualität, die in den sensiblen Anwendungsbereichen unabdingbar ist.
Stärke
Unsere Stärke ist die enge Zusammenarbeit mit unseren Kunden in jeder Projektphase – von der Entwicklung über die Fertigung bis zum Endprodukt. Wir denken vernetzt mit dem notwendigen Blick fürs Detail. Unser interner Aufbau ermöglicht es uns schnell auf Änderungen zu reagieren und uns neuen Anforderungen anzupassen. Zudem erlauben unsere Produktionsanlagen auch die Herstellung kleinerer Mengen zu attraktiven Konditionen.
Kompetenz
Führende Unternehmen aus unterschiedlichen Bereichen vertrauen unseren Produkten. Hierzu gehören unter anderem
die Lebensmittel- und Getränkeindustrie, der pharmazeutische und chemische Markt aber auch die Agrarwirtschaft, die Umweltkontrolle und die Fahrzeugtechnik. Die konstante Qualität unserer Produkte gibt Kunden die Sicherheit, bei jeder Filtration reproduzierbare Ergebnisse zu erzielen.
Unter der Marke Albet LabScience bietet Hahnemühle Ihnen eine Vielzahl an Produkten für allgemeine Filtrationsanwendungen, sowie für anspruchsvolle Filtrationen im chemischen und biologischen Labor für Life-Science- und analytische Anwendungen.
Die technischen Spezifikationen unserer Membranen und Spritzenvorsatzfilter ermöglichen den Einsatz in Bereichen, wo Reproduzierbarkeit und Konstanz wesentlich sind.
Qualität
Unsere Spritzenvorsatzfilter werden strengen Qualitätskontrollen während und nach der Produktion unterzogen. Die Haltbarkeit der Fertigprodukte im Warenlager wird kontinuierlich überwacht. Jeder Filterhalter unterläuft folgende fünf Testmethoden: Bubble Point, Berstdruck, Membranadsorption, Durchflussmenge und extrahierbare Stoffe. Zum Programm gehören Filterhalter für die
verlässliche Abtrennung von Mikroorganismen und Partikeln in Flüssigkeiten, Luft und anderen Gasen. Klar- und Steril-Filtration, Proben-Herstellung, sterile Belüftung und medizinische Anwendungen sind einige typische Anwendungen des Einwegfilterhalter.
Sie sind in verschiedenen Porengrößen und mit unterschiedlichen hydrophilen oder hydrophoben Membran-Materialien erhältlich.
Zu unserem Mikrofiltrationsprogramm gehören auch Membraneinheiten. Der erste Schritt für eine erfolgreiche Analyse ist die Auswahl der richtigen Membraneinheit. Wir bieten Ihnen verschiedene Membranfilter mit Porengrößen von 0,2 μm – 8 μm zum Entfernen von Partikeln, oder zum Sammeln zu untersuchender Mikroorganismen aus Lösungen. Verschiedene Cellulose basierte
Membranen, polymere Materialien decken einen großen Anwendungsbereich ab. Angefangen bei der Klärung und Probenvorbereitung über die Sterilfiltration, Luftfiltration und Belüftung, bis hin zur mikrobiologischen Kontrolle. Um Ihnen die Entscheidung zu vereinfachen, finden Sie auf Seite 8f einen Leitfaden, der Sie schnell und einfach zum perfekten Produkt führt.
Participez à la création du calendrier d’art Hahnemühle
2015 ! Faites la part belle aux différences et composez
un ensemble harmonieux de contrastes saisissants.
Proposez-nous par exemple une représentation
graphique de l’opposition entre clair et foncé, ou
illustrez les contraires au travers d’oeuvres colorées
ou monochromes, en variant les matériaux et les
techniques de dessin.
Enter Hahnemühle´s annual art contest! Create
the 2015 Hahnemühle Art Calendar with the topic
“Contrasts“. We will be looking for the interplay
of light and dark, colour and monochromatic or any
other contrasting effects, with different materials
and painting techniques to create the ultimate
atmospheric artwork.
¡Participe en la creación del calendario artístico 2015 de
Hahnemühle! Dé lugar a contraposiciones estimulantes
y añada contrastes interesantes a composiciones
expresivas.
Reproduzca, por ejemplo, la interacción entre claro y
oscuro de forma literal o plasme contrastes con varios
colores o monocromáticos con diferentes materiales y
técnicas de pintura.
Hahnemühle FineArt GmbH bietet herausragende Produkte, die einen hoch sensitiven Nachweis von Inhaltsstoffen und #Kontaminanten in der #Getränkeanalyse ermöglichen.Diese hohe Qualität erreichen wir auch durch den Einsatz feinster #Rohstoffe. Die Reinheit der eingesetzten Baumwoll-Linters und Cellulose erlauben den Einsatz unserer #Filtrierpapiere für die Prozessfiltration von #Lebensmitteln und #Getränken. Für bestimmte Sorten können wir die Konformität zu der U.S. FDA Empfehlung 21 CFR und der deutschen BfR (Bundesinstitut für Risikobewertung) Empfehlung XXXVI und XXXVI/1 (vom 1.6.2009) bestätigen.
DE: Zuverlässige Keimprüfung - Zertifizierte Keimprüfpapiere zur Saatgutprüfun…Hahnemühle FineArt GmbH
Hahnemühle FineArt ist eine der ältesten deutschen Papiermanufakturen. Seit Jahrzehnten widmet sich das Unternehmen der Fertigung von Premium Papieren. Viele führende Saatgut-Unternehmen vertrauen den Keimprüfpapieren. Die Broschüre gibt einen Überblick der verfügbaren Sorten, deren technischen Spezifikationen, Anwendungen u.v.m.
Der Einband dieses Skizzenbuches lässt sich dank der
stabilen Spiralisierung komplett umschlagen und kann
so als Unterlage dienen. Mit einem Flächengewicht von
140 g/m² ist das naturweiße Papier angenehm griffig
und dennoch flexibel. Ein Gummiband sichert das Buch
gegen unbeabsichtigtes Aufklappen. Eine Einstecktasche
an der Innenseite des hinteren Rückens nimmt kleine
Sammlerstücke auf. Erhältlich in den Formaten DIN A4
und DIN A5 mit je 120 Seiten.
Thanks to the solid spiral binding, the cover of this
sketchbook can be turned completely and consequently
can be used as a blotting pad. The natural-white 140 gsm
paper is full-grain yet flexible. An elastic band ensures
that the booklet doesn’t open unintentionally and a
pocket on the inside of the back cover offers space for
small souvenirs. The 120-page sketchbook is available in
A4 and A5 Sizes.
Contribute to the creation of the Hahnemühle FineArt Art
Calendar 2014! We are looking forward to your pictures
around the subject ‘Music’. Every painting technique
is welcome and every individual may participate. The
only condition: the picture must be specially created for
this contest – and on Lana or Hahnemühle paper.
http://bit.ly/ZKniYU
Hahnemühle FineArt now offers the classic fine art papers Photo Rag® 308 gsm, William Turner 310 gsm and Museum Etching 350 gsm as a version with deckle edges on all four sides. These hand crafted sheets are available in DIN A3+ and DIN A2 sizes.
Now these papers for the professional digital fine art printing also have the look and feel of a traditional artist paper with original deckle edges.
Digital FineArt Papiere mit gerissenem Büttenrand
Die Hahnemühle Digital FineArt Papiere Photo Rag 308 g/m², William Turner 310 g/m² und Museum Etching 350 g/m² gibt es jetzt auch mit einem gerissenem Büttenrand an allen vier Seiten. Diese exklusiven Bogen sind in den Formaten DIN A3+ und DIN A2 erhältlich. Somit haben diese FineArt Papiere für den Inkjet Druck die perfekte Anmutung eines traditionellen Künstlerpapiers mit Büttenrand. Textur und Haptik jedes Bogens entspricht natürlich der gewohnt hochwertigen Hahnemühle Qualität.
Our painting competition themed "Culinary Delights" for this year is over. Thanks to all participants from all over the world watering our mouth. At the moment the judgement panel take place. Find the short list motifs here.
We keep you up-to-date in our newsletter (www.hahnemuehle.com -> news) and here on our Facebook page on the final motifs going to be featured in Hahnemühle´s art calendar 2013.
Implicitly or explicitly all competing businesses employ a strategy to select a mix
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Personal Brand Statement:
As an Army veteran dedicated to lifelong learning, I bring a disciplined, strategic mindset to my pursuits. I am constantly expanding my knowledge to innovate and lead effectively. My journey is driven by a commitment to excellence, and to make a meaningful impact in the world.
Kseniya Leshchenko: Shared development support service model as the way to ma...Lviv Startup Club
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What is the TDS Return Filing Due Date for FY 2024-25.pdfseoforlegalpillers
It is crucial for the taxpayers to understand about the TDS Return Filing Due Date, so that they can fulfill your TDS obligations efficiently. Taxpayers can avoid penalties by sticking to the deadlines and by accurate filing of TDS. Timely filing of TDS will make sure about the availability of tax credits. You can also seek the professional guidance of experts like Legal Pillers for timely filing of the TDS Return.
"𝑩𝑬𝑮𝑼𝑵 𝑾𝑰𝑻𝑯 𝑻𝑱 𝑰𝑺 𝑯𝑨𝑳𝑭 𝑫𝑶𝑵𝑬"
𝐓𝐉 𝐂𝐨𝐦𝐬 (𝐓𝐉 𝐂𝐨𝐦𝐦𝐮𝐧𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬) is a professional event agency that includes experts in the event-organizing market in Vietnam, Korea, and ASEAN countries. We provide unlimited types of events from Music concerts, Fan meetings, and Culture festivals to Corporate events, Internal company events, Golf tournaments, MICE events, and Exhibitions.
𝐓𝐉 𝐂𝐨𝐦𝐬 provides unlimited package services including such as Event organizing, Event planning, Event production, Manpower, PR marketing, Design 2D/3D, VIP protocols, Interpreter agency, etc.
Sports events - Golf competitions/billiards competitions/company sports events: dynamic and challenging
⭐ 𝐅𝐞𝐚𝐭𝐮𝐫𝐞𝐝 𝐩𝐫𝐨𝐣𝐞𝐜𝐭𝐬:
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➢FreenBecky 1st Fan Meeting in Vietnam
➢CHILDREN ART EXHIBITION 2024: BEYOND BARRIERS
➢ WOW K-Music Festival 2023
➢ Winner [CROSS] Tour in HCM
➢ Super Show 9 in HCM with Super Junior
➢ HCMC - Gyeongsangbuk-do Culture and Tourism Festival
➢ Korean Vietnam Partnership - Fair with LG
➢ Korean President visits Samsung Electronics R&D Center
➢ Vietnam Food Expo with Lotte Wellfood
"𝐄𝐯𝐞𝐫𝐲 𝐞𝐯𝐞𝐧𝐭 𝐢𝐬 𝐚 𝐬𝐭𝐨𝐫𝐲, 𝐚 𝐬𝐩𝐞𝐜𝐢𝐚𝐥 𝐣𝐨𝐮𝐫𝐧𝐞𝐲. 𝐖𝐞 𝐚𝐥𝐰𝐚𝐲𝐬 𝐛𝐞𝐥𝐢𝐞𝐯𝐞 𝐭𝐡𝐚𝐭 𝐬𝐡𝐨𝐫𝐭𝐥𝐲 𝐲𝐨𝐮 𝐰𝐢𝐥𝐥 𝐛𝐞 𝐚 𝐩𝐚𝐫𝐭 𝐨𝐟 𝐨𝐮𝐫 𝐬𝐭𝐨𝐫𝐢𝐞𝐬."
3.0 Project 2_ Developing My Brand Identity Kit.pptxtanyjahb
A personal brand exploration presentation summarizes an individual's unique qualities and goals, covering strengths, values, passions, and target audience. It helps individuals understand what makes them stand out, their desired image, and how they aim to achieve it.
Falcon stands out as a top-tier P2P Invoice Discounting platform in India, bridging esteemed blue-chip companies and eager investors. Our goal is to transform the investment landscape in India by establishing a comprehensive destination for borrowers and investors with diverse profiles and needs, all while minimizing risk. What sets Falcon apart is the elimination of intermediaries such as commercial banks and depository institutions, allowing investors to enjoy higher yields.
The world of search engine optimization (SEO) is buzzing with discussions after Google confirmed that around 2,500 leaked internal documents related to its Search feature are indeed authentic. The revelation has sparked significant concerns within the SEO community. The leaked documents were initially reported by SEO experts Rand Fishkin and Mike King, igniting widespread analysis and discourse. For More Info:- https://news.arihantwebtech.com/search-disrupted-googles-leaked-documents-rock-the-seo-world/
Attending a job Interview for B1 and B2 Englsih learnersErika906060
It is a sample of an interview for a business english class for pre-intermediate and intermediate english students with emphasis on the speking ability.
Enterprise Excellence is Inclusive Excellence.pdfKaiNexus
Enterprise excellence and inclusive excellence are closely linked, and real-world challenges have shown that both are essential to the success of any organization. To achieve enterprise excellence, organizations must focus on improving their operations and processes while creating an inclusive environment that engages everyone. In this interactive session, the facilitator will highlight commonly established business practices and how they limit our ability to engage everyone every day. More importantly, though, participants will likely gain increased awareness of what we can do differently to maximize enterprise excellence through deliberate inclusion.
What is Enterprise Excellence?
Enterprise Excellence is a holistic approach that's aimed at achieving world-class performance across all aspects of the organization.
What might I learn?
A way to engage all in creating Inclusive Excellence. Lessons from the US military and their parallels to the story of Harry Potter. How belt systems and CI teams can destroy inclusive practices. How leadership language invites people to the party. There are three things leaders can do to engage everyone every day: maximizing psychological safety to create environments where folks learn, contribute, and challenge the status quo.
Who might benefit? Anyone and everyone leading folks from the shop floor to top floor.
Dr. William Harvey is a seasoned Operations Leader with extensive experience in chemical processing, manufacturing, and operations management. At Michelman, he currently oversees multiple sites, leading teams in strategic planning and coaching/practicing continuous improvement. William is set to start his eighth year of teaching at the University of Cincinnati where he teaches marketing, finance, and management. William holds various certifications in change management, quality, leadership, operational excellence, team building, and DiSC, among others.
RMD24 | Debunking the non-endemic revenue myth Marvin Vacquier Droop | First ...BBPMedia1
Marvin neemt je in deze presentatie mee in de voordelen van non-endemic advertising op retail media netwerken. Hij brengt ook de uitdagingen in beeld die de markt op dit moment heeft op het gebied van retail media voor niet-leveranciers.
Retail media wordt gezien als het nieuwe advertising-medium en ook mediabureaus richten massaal retail media-afdelingen op. Merken die niet in de betreffende winkel liggen staan ook nog niet in de rij om op de retail media netwerken te adverteren. Marvin belicht de uitdagingen die er zijn om echt aansluiting te vinden op die markt van non-endemic advertising.
VAT Registration Outlined In UAE: Benefits and Requirementsuae taxgpt
Vat Registration is a legal obligation for businesses meeting the threshold requirement, helping companies avoid fines and ramifications. Contact now!
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Cracking the Workplace Discipline Code Main.pptxWorkforce Group
Cultivating and maintaining discipline within teams is a critical differentiator for successful organisations.
Forward-thinking leaders and business managers understand the impact that discipline has on organisational success. A disciplined workforce operates with clarity, focus, and a shared understanding of expectations, ultimately driving better results, optimising productivity, and facilitating seamless collaboration.
Although discipline is not a one-size-fits-all approach, it can help create a work environment that encourages personal growth and accountability rather than solely relying on punitive measures.
In this deck, you will learn the significance of workplace discipline for organisational success. You’ll also learn
• Four (4) workplace discipline methods you should consider
• The best and most practical approach to implementing workplace discipline.
• Three (3) key tips to maintain a disciplined workplace.
3. 3
Hahnemühle‘s Albet LabScience brand is a range of products designed for general filtration applications and complex filtration
processes in life science and analytical applications in chemical and biological laboratories. The technical specifications of our
membranes and syringe filters allow their use in areas where reproducibility and consistency are of major importance.
Quality
Our syringe filters undergo strict quality controls during and after production. The storage life of the finished products in the
warehouse is constantly monitored. Each filter holder undergoes the following five tests: bubble point, burst pressure, membrane
absorption, flow rate and extractable substances. The range includes filter holders for the reliable separation of microorganisms
and particles in liquids, air and other gases. Clear and sterile filtration, sample production, sterile aeration and medical applications
are just some of the areas where disposable filter holders are typically used. They are available in different pore sizes and with
different hydrophilic or hydrophobic membrane materials.
Our microfiltration range also includes membrane units. The first step towards successful analysis is choosing the right membrane
unit. We offer you different membrane filters with pore sizes from 0.2 µm – 8 µm for particle removal or for the collection of the
microorganisms to be examined from solutions. Various cellulose-based membranes and polymer materials cover a wide range of
application areas, from clarification and sample preparation to sterile and air filtration to aeration and microbiological control. See
our quick and easy to use guidelines on page 8f, which will help you to decide which product is perfect for you.
Experience
Our range of papers for day-to-day laboratory applications is completed by our over 150 types of filter paper, which we have been
produced at our site in Dassel in Germany since 1883. See our separate catalogue for industrial and laboratory use filter papers for
more detailed information about our range of filter papers.
Consistency
We care greatly about the quality of our products – because our success is due to customer satisfaction. We are aware of the
importance of consistently high quality product properties. We do everything we can to maintain this quality in order to ensure that
your analysis results are always reproducible.
We are a reliable partner that offers you the perfect product for your application as well as efficient order processing. We will of
course deliver all orders promptly on the agreed date.
Leading businesses from sensitive industry sectors put their trust in us and in our products:
- Pharmaceuticals
- Life science
- Food & beverage
- Environmental monitoring
- Automotive
4. 44
Hahnemühle Filtration
Our history
Profit from our more than 430 years
of experience ... 6/7
Requirement to filtration
Choosing the optimal filter material
for each application area ... 8/9
Membrane Filter Selection
For every application the optimal filter type ... 10/11
Cellulose acetate membrane filters
Recommended for aqueous samples, biological applications and
protein filtration ... 12
Cellulose nitrate membrane filters
Recommended for clarification and sterilisation of aqueous
solutions, microbiological analysis and particle counts ... 13-15
Monitor ready to use
For colony counting ... 16
Regenerated cellulose membrane filters
Recommended for clarification, sterilisation and filtration of organic
solutions and aqueous and non aqueous samples ... 17
Mixed cellulose ester membrane filters
Recommended for clarification and sterilisation, hydrophilic ... 18/19
Nylon membrane filters
Made entirely of polyamide (nylon), hydrophilic ... 20
PTFE membranes filters
Permanently hydrophobic ... 21
Hahnemühle Hahnemühle Membranes
5. 55
Syringe filter overview
All available sizes and membrane types ... 22/23
Cellulose acetate syringe filters
High flow rates, also available as sterile peel-packs ... 24/25
Regenerated cellulose syringe filters
Low protein adsorption ... 26
Nylon syringe filters
High resistance for HPLC and GC applications ... 27
PTFE syringe filters
Polytetrafluorethylene (PTFE, Teflon) membrane, high chemical
resistancy hydrophobic ... 28/29
Parameters and testing methods
Test criteria, units and short description ... 30/31
Chemical resistance – Membranes
Tabulated compatibility list ... 32/33
Chemical resistance – Syringe filters
Tabulated compatibility list ... 34/35
Part numbers
Index by part number ... 36
Parameters and testing methodsHahnemühle Syringe filters
6. 66
Hahnemühle Filtration
About us
Hahnemühle FineArt GmbH is an internationally active company that specialises in the development and production of high
quality papers. Hahnemühle has been developing and manufacturing filter papers for both liquid and air filtration technologies in
various areas of application since 1883. The premium quality pulp, cotton linters, glass and quartz fibre materials are suitable for all
laboratory and industrial applications and are manufactured individually according to customer specifications. Our in-house team of
developers ensures that the filter media we offer meet the modern, diverse and individual requirements of our customers.
Clientele
Leading businesses from the manufacturing sector and analytical laboratories rely on the consistent quality of our products. With
over 150 filter papers, we offer our customers a wide spectrum of papers that cover almost all filter requirements.
Flexibility
Our company structure allows us to quickly respond to specific customer needs; we also offer low volume production. Our specialists
will be happy to assist you in the development of an individual paper that fully meets your specific requirements. In cooperation
with the client and the raw material supplier, we create new formulas which we then use to manufacture filter papers with the
required properties at our factory.
Hahnemühles history
1584 Establishment of Hahnemühle FineArt
1883 Filter papers produced for the first time
1886 Carl Hahne buys the paper mill, which subsequently bears his name
1927 - 2004 Hahnemühle was part the „Schleicher & Schuell“ group of companies.
Under this name, the papers produced here gained an international reputation
2004 Hahnemühle FineArt GmbH becomes an independent company again, with subsidiaries and distribution companies in
the USA, the UK, China and France
Since 2008 Hahnemühle‘s pure filter papers are marketed directly under the company name
7. 77
ISO
ZE
R
Q
U
A
ISO 9001
DIN-EN
Since 2002
ZE
R
T
I F I Z I E R
T
E
S
Q
U
A
L
I T Ä T S M A N A G
E
M
E
NT
Quality Management
Our paper manufacturing process combines traditional craftsmanship with state-of-the-art production technology and conversion.
The quality of our papers is not only a result of our many years of manufacturing and paper making expertise; we also use only high-
class raw materials and pure spring water to produce them.
Our production process is strictly controlled, which guarantees consistently even, proven quality, charge by charge. We hold a
DEKRA certificate, which confirms that the quality management system we have introduced complies with all DIN EN ISO 9001
standard requirements.
The implementation of these quality assurance systems guarantees our high quality standard and competitiveness in increasingly
international markets with increasingly sophisticated requirements.
The fact that we hold this certificate also proves that we are thoroughly customer-focused, from product development to the
services we provide. Ongoing further product development and process improvements allow us to exceed the required quality
standards.
8. 8
Hahnemühle Filtration
8
When choosing the optimal membrane, the pore size is a very important variable. Depending on the aim, you should select the
best compromise between filtration speed and retention rate:
- 0.2 µm pore size for sterilising liquids
- 0.45 µm pore size for clarification or microbiological retention
- 0.8 µm and larger pore size for particle removal and monitoring
The composition of the ingredients of the filtered media must not change by filtration:
- Choose types of membranes with known low unspecific adsorption cellulose acetate (AC) and regenerated Cellulose (CR)
- For dilute protein solutions keep the membrane diameter to a minimum to further avoid adsorption.
The syringe filter should not be decomposed by the used solvents:
Please see the overview of chemical compatibilities of the several membranes and syringe filters on pages 32 - 35. To meet this need,
we offer membranes with a broad range of chemical compatibility. All our membranes are made from low extractable polymers to
ensure that your filtered solutions do not retain impurities nor any particles. Most of the syringe filters are built with a polypropylene
housing, which can stand the use of the usual solvents.
The syringe filter must have an optimal ratio between speed and hold-up volume:
We offer syringe filters with various diameters, from 13 mm to 30 mm.
Application Areas
Filtration Products
SoilAir Water
Safe Environmental Analytics
Sampling • Sample Preparation •Analysis
Requirement to filtration by membranes and syringe filters
9. 99
Analysis of Beverages
Filtration and Separation
Membrane Filtration of Water
Legionella
The high particle load of the sample may block the filter membrane or syringe filter:
To avoid blocking the membrane you should use a glass fibre filter as a pre-filter. The glass fibre filter GF9 is well accepted as
a pre-filter for membranes to prevent the membranes from silting up. GF9 is available as filter circles with various standard
diameters (in mm): 25 - 47 - 90, the product references are GF9025, GF9047 and GF9090, respectively. Other sizes and special
cuts are available on request.
The loss of expensive samples or media should be avoided:
The design of our syringe filters features the lowest possible hold-up volume.
The risk of mistaken identities shall be minimised:
Membrane type and pore size are printed on the housing of the syringe filter. The colour of the edges of the syringe filter stands
for a particular type of membrane.
Please contact us, we are happy to serve you:
Telefon: +49 55 61 791 687, Fax: +49 55 61 791 377, filtration@hahnemuehle.com
Further broschures are available for download on the internet @ www.hahnemuehle.com
10. Hahnemühle Filtration
Membranes
10
Sample Type of membrane Benefits of the membrane type
Aqueoussolution
(hydrophilic)
AC Cellulose Acetate Very low protein binding
NC Cellulose Nitrate Broad range of various pore sizes, high protein binding
MCE Mixed Cellulose Ester Constant weight, used for gravimetrical analysis
Biological
solution
(hydrophilic)
AC Cellulose Acetate Very low protein binding
CR Regenerated Cellulose High mechanical strength
For every application the optimal filter type
11. 11Membranes
Sample Type of membrane Benefits of the membrane type
Aqueous-
organic
solution
(hydrophilic)
CR Regenerated Cellulose High mechanical strength
NY Nylon (Polyamide) Fast wetting, very high mechanical strength
Organic
solution
(hydrophobic)
CR Regenerated Cellulose High mechanical strength
PTFE Polytetrafluorethylene Used for very strong acids and bases
Gases,even
strongly
oxdidasing
PTFE Polytetrafluorethylene Used for very strong acids and bases
12. Hahnemühle Filtration
Membranes
12
Cellulose acetate membrane filters
Recommended for aqueous samples, biological applications and protein filtration
- Made entirely from pure cellulose acetate, hydrophilic
- High flow rate
- High thermal stability
- Very low nonspecific adsorption
- Suited for use in pressure filtration devices
- Compatible to aqueous solutions with pH 4-8, most alcohols,
hydrocarbons and oils
- Filter diameters from 25 mm to 50 mm
- Pore sizes 0.2 µm and 0.45 µm
Applications
- Filtration of aqueous solutions for biological and clinical analysis
- Sterilisation of biological solutions (CA-membranes with a pore size of 0.2 µm are specially recommended when the recovery of proteins is
critical)
- Filtration of proteins and enzymes
- Biological and clinical analysis
- Sterilisation of culture media (0.2 µm)
Part number Pore size Diameter Quantity per box
AC02025BL 0.2 µm 25 mm 100
AC02047BL 0.2 µm 47 mm 100
AC04525BL 0.45 µm 25 mm 100
Part number Pore size Diameter Quantity per box
AC04547BL 0.45 µm 47 mm 100
AC04550BL 0.45 µm 50 mm 100
Ordering information
Technical data
Material
Pore size
[µm]
Thickness*
[µm]
Flow rate**
[ml/min]
Bubble point***
[Bar]
Celluloseacetate
0.2 120 20 2.9
0.45 120 65 2.4
0.8 120 200 1.0
* Acc. DIN 53105
** Acc. DIN 58355: Average value per cm² area at ∆p = 0,9 bar
*** Acc. DIN 58355
--Adsorption: bovine serum albumin 10 µg/cm²
--Extractables with water less than 1 %
--Sterilisation: by autoclaving at 121ºC or 134ºC, with γ-radiation,
dry heat or ethylene oxide
--Maximum temperature: 180ºC
--The resistance to various chemical solvents is summarised on
page 32 f
LabScience
ALBET
13. 13Membranes
Cellulose nitrate membrane filters
Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle counts
--Made of cellulose nitrate, hydrophilic
--Very high flow rate
--High non-specific adsorption
--Qualified for aqueous solutions (pH 4-8), hydrocarbons and
some dilute solvents
--Very uniform pore structure which ensures homogeneous
distribution of the particles retained on the filter surface
--Available in white or black, gridded (3.1 x 3.1 mm) or plain,
sterile or non-sterile
--Pore size from 0.2 µm to 8 µm with a sharp size distribution
--Filter diameters from 25 mm to 50 mm
Cellulose nitrate is the perfect membrane type
for water, food and beverage analysis
Technical data
Material
Pore size
[µm]
Thickness*
[µm]
Flow rate**
[ml/min]
Bubble point***
[Bar]
Cellulosenitrate
0.2 130 20 8.0
0.45 130 70 2.4
0.8 130 200 1.7
3 130 430 0.5
5 130 570 0.5
8 130 750 0.3
* Acc. DIN 53105
** Acc. DIN 58355: Average value per cm² area at ∆p = 0,9 bar
*** Acc. DIN 58355
--Adsorption: 160 µg/cm² for γ−globulin and pore 0.2 µm
(decreases with increasing pore size)
--Extractables with water less than 1%
--No enhancement or inhibition by the grid lines, due to chemical
extractables
--Maximum temperature 130ºC
--Sterilisation: by autoclaving at 121ºC, γ-radiation (25 kGy) or with
ethylene oxide
--The resistance to various chemical solvents is summarised on
page 32f
LabScience
ALBET
The following variations are available as a ‘Special order’ product:
Ready to use monitors for colony counting, with white or black membrane (see page 16)
14. Hahnemühle Filtration
Membranes
14
Applications
--Membranes with larger pore sizes (8 µm, 5 µm and 3 µm) are used for Chemotaxis and retention of large cells
--The membranes with a pore size of 0.45 µm are used for micro-organism counts (microbiological analysis)
--Membranes with grid lines are ideal for microbiological analysis (bacterial counts) of water, pharmaceuticals, beverages, cosmetics, etc.
--Sterilisation of solutions and culture media (0.2 µm) - Consider binding of proteins!
--Particle size analysis
--Pre-filtration and clarification of samples prior to further analysis
--Removal of particles in suspensions to determine the degree of impurity
--Measurement of sewage sludge in clarification plants
--Immunological analysis, which requires a very low level of extractable substance in water
--Analysis of cell solutions
--Diagnostic (due to the high level of non-specific adsorption)
Sterile membranes, 47 / 50 mm
Ordering information
Part number Pore size Diameter Quantity per box
NCS02047BC 0.2 µm, white, sterile, grid 47 mm 100
NCS04547BC 0.45 µm, white, sterile, grid 47 mm 100
NCS04547BL 0.45 µm, white, sterile 47 mm 100
Part number Pore size Diameter Quantity per box
NCS04547NC
0.45 µm, schwarz, sterile,
grid
47 mm 100
NCS04550NC
0.45 µm, schwarz, sterile,
grid
50 mm 100
15. 15Membranes
Part number Pore size Diameter Quantity per box
NC02025BL 0.2 µm, white 25 mm 100
NC02047BL 0.2 µm, white 47 mm 100
NC02050BL 0.2 µm, white 50 mm 100
NC04525BL 0.45 µm, white 25 mm 100
NC04547BL 0.45 µm, white 47 mm 100
NC04547BC 0.45 µm, white, with grid 47 mm 100
Part number Pore size Diameter Quantity per box
NC04550BL 0.45 µm, white 50 mm 100
NC08047BL 0.8 µm, white 47 mm 100
NC08050BL 0.8 µm, white 50 mm 100
NC30047BL 3.0 µm, white 47 mm 100
NC50047BL 5.0 µm, white 47 mm 100
NC80047BL 8,0 µm, white 47 mm 100
Non-sterile membranes
We offer a broad range of various formats:
--White membranes, used in general laboratory applications
--Black membranes for counts of fungi and yeasts (the higher contrast allows easier counting)
--Gridded membranes (black grid on white membrane or white grid on black membrane) for counts of colonies as a standard method of
quantification
Clearly defined sections (3.1 x 3.1 mm grid)
Special ink, non-toxic and totally free from bacterial growth inhibitors
--Sterilised membranes (packaged in individual blisters) to ensure that the filter is not contaminated
Looking for filter papers? Our catalogue includes a wide
range of products. Order your personal copy directly on our
site www.hahnemuehle.com or
send an e-mail to filtration@hahnemuehle.com
Ordering information
16. Hahnemühle Filtration
Membranes
16
Monitor ready to use
For colony counting, for microbiological testing of pharmaceuticals, cosmetics, food, beverages, water and other liquids
--With a gridded cellulose nitrate membrane filter and cellulose pad
--Available in black and white
--Just remove the 100 ml funnel to convert to a petri dish
--Ready to use – can be adapted to multi-branch by adapter
--Available as sterile filter and individually packaged
The pre-sterilised units of a membrane and a cellulose pad underneath. After the filtration step the monitor is quickly
transformed into a petri dish-without touching the membrane disc. Beside the grids on the membrane the magnifier, which is
integrated into the cover of the 100 ml container, simplifies the counting on the membrane surface. The membrane is
not welded on the housing and can be easily be removed.
These sterile monitors are individually packed and offered as pack with 50 pieces:
--Monitor with black Cellulose Nitrate Membrane 0.45 µm sterile, 47 mm diameter, with grid, 50 pcs., Part Number ENCS045547NC
--Monitor with white Cellulose Nitrate Membrane 0.45 µm, sterile, 47 mm diameter, with grid, 50 pcs., Part Number ENCS045547BC
Monitors are sterile ready-to-use filter units which
can be easily converted into a petri dish. They
are available with black or white cellulose nitrate
membranes
17. 17Membranes
Regenerated cellulose membrane filters
Recommended for clarification, sterilisation and filtration of organic solutions and aqueous and non aqueous samples
--Made of regenerated cellulose, reinforced with non-woven
cellulose, hydrophilic
--Easily wettable with water
--Low non-specific adsorption
--High mechanical strength
--Qualified for almost all solvents and aqueous solutions in the
pH range 3-12
--Pore sizes 0.2 µm and 0.45 µm
--Filter diameters from 47 mm
Part number Pore size Diameter Quantity per box
CR02047BL 0.2 µm 47 mm 100
CR04547BL 0.45 µm 47 mm 100
Ordering informationApplications
--Recommended for particle removal from organic solvents or
mixtures of aqueous and non-aqueous samples
--Sterilisation of organic and aqueous solutions and mixtures of both
--Particle removal and degasing of mobile phases used in HPLC and GC
Technical data
Material
Pore size
[µm]
Thickness *
[µm]
Flow rate **
[ml/min]
Bubble point ***
[Bar]
Regenerated
cellulose
0.2 170 15 4.4
0.45 170 30 2.9
* Acc. DIN 53105
** Acc. DIN 58355: Average value per cm² area at ∆p = 0,9 bar
*** Acc. DIN 58355
--Adsorption: 10 µg/cm² for bovine serum albumin
--Extractable with water less than 1%
--Sterilization: by autoclaving at 121ºC or 134ºC, dry heat (180ºC),
γ-radiation (25 kGy) or with ethylene oxide
--Maximum temperature 180°C
--The resistance to various chemical solvents is summarised on
page 32
LabScience
ALBET
18. Hahnemühle Filtration
Membranes
18
Mixed cellulose ester membrane filters
Recommended for clarification and sterilisation of aqueous solutions, microbiological analysis and particle counts
--Made of a blend of cellulose nitrate and cellulose acetate,
hydrophilic
--High flow rate
--High non-specific adsorption
--Qualified for aqueous solutions (pH 4-8), hydrocarbons and
some dilute solvents
--Very uniform pore structure which ensures homogeneous
distribution of the particles retained on the filter surface
--High mechanical stability
--Ideal for gravimetrical measurements
--Extractables with water less than 1%
--Available in white, with or without grid, sterile or non-sterile
--Pore size 0.2 µm and 0.45 µm
--Membrane diameters 47 mm and 50 mm
Ordering information
Part number Pore size Diameter Quantity per box
MCE02050BL 0.2 µm, white 50 mm 100
MCE04525BL 0.45 µm, white 25 mm 100
MCE04547BL 0.45 µm, white 47 mm 100
MCE04547BC 0.45 µm, white, Grid 47 mm 100
Technical data
Material
Pore size
[µm]
Thickness *
[µm]
Flow rate **
[ml/min]
Bubble point ***
[Bar]
Mixed
cellulose
ester
0.2 150 19 3.6
0.45 150 51 2.1
* Acc. DIN 53105
** Acc. DIN 58355: Average value per cm² area at ∆p = 0,9 bar
*** Acc. DIN 58355
--Adsorption: 160 µg/cm² for γ−globulin and pore size 0.2 µm (decre-
ases with increasing pore size)
--Sterilisation: by autoclaving at 121ºC, γ-radiation (25 kGy) or with
ethylene oxide
--Maximum temperature 180ºC
--The resistance to various chemical solvents is summarised on
page 32
LabScience
ALBET
Part number Pore size
MCE04550BC 0.45 µm, white, grid
MCE04550NC 0.45 µm, black, grid
MCES02047BC 0.2 µm, white, sterile, grid
MCES02050BC 0.2 µm, white, sterile, grid
Ordering information
19. 19Membranes
Applications
--The membranes with a pore size of 0.45 µm are used for micro-organism counts (microbiological analysis)
--Membranes with grid lines are ideal for microbiological analysis (bacterial counts) of water, pharmaceuticals, beverages,
cosmetics, etc. for the measurement of coliform bacteria and other germs
--Sterilisation of solutions and culture media (0.2 µm) – Consider binding of proteins!
--Pre-filtration, clarification, sterilisation prior to further analysis (0.45 µm)
--Gravimetrical Measurements, removal of particles in suspensions to determine the degree of impurity (sewage plants etc.)
--Analysis of cell solutions
--Particle analysis
We offer a broad range of various formats:
--White membranes, used in general laboratory applications
--Gridded membranes (black grid on white membrane) for counts of colonies as a standard method of quantification
Black grid, clearly defined sections (3.1 x 3.1 mm grid)
Special ink, non-toxic and totally free from bacterial growth inhibitors
--Sterilised membranes (packaged in individual blisters) ensure, that the filter is not contaminated. Available in different formats
Part number Pore size Diameter Quantity per box
MCES04547BC 0.45 µm, white, sterile, grid 47 mm 100
MCES04550BC 0.45 µm, white, sterile, grid 50 mm 100
Diameter Quantity per box
50 mm 100
50 mm 100
47 mm 100
50 mm 100
Ordering information
Looking for filter papers? Our Catalogue includes a
wide range of products. Order your personal copy
directly on our site www.hahnemuehle.com or send an
e-mail to filtration@hahnemuehle.com
20. Hahnemühle Filtration
Membranes
20
Part number Pore size Diameter Quantity per box
NY02047BL 0.2 µm 47 mm 100
NY04547BL 0.45 µm 47 mm 100
Ordering information
Nylon membrane filters
Recommended for filtration, sterilisation and clarifications of mobile phase in HPLC processes with aqueous, alkaline and organic
samples
--Made entirely of polyamide, hydrophilic
--Qualified for many solvents and alkaline solutions,
pH range 3-14
--High non-specific adsorption
--High mechanical stability
--Pore size 0.2 µm and 0.45µm
--Filter diameter 47 mm
Applications
--Particle removing filtration of water, and aqueous solutions and solvents for HPLC
--Isolating Legionella
--These filters are not recommended for applications like sterilisation of cell solutions as they can cause significant loss of tracers. For these
applications, it is preferable to use ALBET LabScience cellulose acetate (CA-)membranes, which have a low level of adsorption.
Technical data
Material
Pore size
[µm]
Thickness *
[µm]
Flow rate **
[ml/min]
Bubble point ***
[Bar]
Nylon
0.2 115 12 3.4
0.45 115 26 2.2
* Acc. DIN 53105
** Acc. DIN 58355: Average value per cm² area at ∆p = 0,9 bar
*** Acc. DIN 58355
--Adsorption: bovine serum albumin 100 µg/cm²
(for 0.2 µm pore size)
--Extractables with water less than 1%
--Sterilization: by autoclaving (at 121ºC) or ethylene oxide
--Maximum temperature 134 ºC
--The resistance to various chemical solvents is summarised on
page 32 f
LabScience
ALBET
Nylon Membranes are hydrophilic and are perfect for clarification
of buffers and medias with a low rate of extractables
21. 21Membranes
Part number Pore size Diameter Quantity per box
PT02047BL 0.2 µm 47 mm 100
PT04525BL 0.45 µm 25 mm 100
PT04547BL 0.45 µm 47 mm 100
Ordering information
PTFE membranes filters
Recommended for filtration and sterilisation of aggressive organic and inorganic solvents
and samples and for venting
--Made entirely of PTFE (polytetrafluorethylene), reinforced
by Polypropylene net
--Permanently hydrophobic
--Allowing passage of air even at low differential pressure
--Resistant to almost all chemicals, very strong acids,
cryoliquids, alkalis, aggressive organic solvents
--Pore sizes 0.2 µm and 0.45 µm
--Filter diameters 47 mm
Applications
--Filtering chemically aggressive samples
--Clarifying corrosive substances, strong acids and alkalis (0.45 µm)
--Clarification of samples and mobile phases of HPLC and GC (0.45 µm)
--Sterilisation of air and gases (0.2 µm)
--Separation of aqueous aerosols from gases
--Sterile venting of fermentation vessels, tanks and containers (0.2 µm)
--Must be pre-wetted with an organic solvent, such as ethanol, methanol or isopropanol, before filtration of aqueous samples
Technical data
Material
Pore size
[µm]
Thickness *
[µm]
Flow rate **
[ml/min]
Bubble point ***
[Bar]
PTFE
0.2 65 11 1.0
0.45 80 20 0.7
* Acc. DIN 53105
** Acc. DIN 58355: Average value per cm² area at ∆p = 0,9 bar
*** Acc. DIN 58355, für Isopropanol
LabScience
ALBET
--Adsorption 8 µg/cm² for gamma-globulin (pore size 0.2 µm)
--Extractables with water not detected
--Sterilisation: by autoclaving (at 121ºC or 134ºC) or by ethylene
oxide
--Maximum temperature 145ºC
--The resistance to various chemical solvents is summarised on
page 32
22. Hahnemühle Filtration
Syringe filters
22
Hahnemühle is proud to offer a selected range of reassuringly high quality single
use syringe filters. Favoured by respected companies in the Pharmaceutical and
Chemical industries and for the high turnover requirements for Analysis in the Food, Beverage and
Environmental Analysis industries. All require a syringe filter with a consistently excellent perfor-
mance and reliability.
Hahnemühle service is well-known for flexibility to meet the requirements in accordance to
customer needs.
Please contact your local Sales Office for further information and availability.
LabScience
ALBET
Membrane
[mm]
Pore size (µm) Overmoulded edge sterile Overmoulded edge non-sterile
25 30 13 25 30
Cellulose
acetate
0.2 + + +
0.45 + + + +
Regenerated
Cellulose
0.2 + +
0.45 + + +
Syringe filter overview Membrane-Diameter (mm)
HPLC
t e s t e d
Sy
r
i n g e F i l t
e
rs
24. Hahnemühle Filtration
Syringe filters
24
Technical data
Material
Membrane
Diameter
Housing
material
Fitting inlet Fitting outlet
Filter area
(cm²)
Sample
volume (ml)
Hold up
volume (µl)
Max. pressure
(bar)
Max. Operating
Temp. (ºC)
Method of
sterilisation
Celluloseacetate
membrane
13 mm Polypropylene FemaleLuer-Lock Male Luer-Slip 1.09 1-10 25 6 50 γ-irradiation
25 mm Polypropylene FemaleLuer-Lock Male Luer-Slip 4.08 10-100 100 6 50 γ-irradiation
30 mm Polypropylene FemaleLuer-Lock Male Luer-Slip 5.39 100 200 6 50 γ-irradiation
LabScience
ALBET
Cellulose acetate syringe filters
Recommended for clarification, purification and sterilisation of aqueous solutions and biological samples
- Cellulose acetate membrane, surfactant-free, hydrophilic
- Low non-specific adsorption (3.8 µg BSA/cm²)
- Perfect for aqueous solutions (pH4 - 8) and the most of
alcohols, carbohydrates and oils
- High flow rates and high total throughput:
0.2 µm: 16.1 ml/min/cm²; 0.45 µm: 54.7 ml/min/cm² (10 psi)
- Low hold-up volume
- Minimum of extractables
- Sterilisation by gamma irradiation or ethylene oxide,
autoclaving is not recommended
- The resistance to various chemical solvents is summarised on
page 34
- Membrane diameter 13 mm, 25 mm and 30 mm
- Pore sizes 0.2 and 0.45 µm
- Individual sterile peel-packs
25. 25Syringe filters
Hahnemühle syringe filters are
HPLC tested – no external peaks in
UV radiation are guaranteed
Applications
- Filtration of biological fluids, serum and nutrient media with a minimum loss of proteins due to very low protein binding to the membrane
- Sterile filtration (0.2 µm) and clarification (0.45 µm) of nutrient media, biological fluids, cell solution, proteins, enzymes serum or additives
- Separation of virus / bacteria suspension (0.2 µm)
- Purification, particulate removal and clarification of liquids (0.45 µm)
- HPLC: Preparation of aqueous samples (0.45 µm)
- Clinical applications: Sterile filtration of injection solutions (0.2 µm)
Part number Features Diameter Quantity per box
SAC02025100 0.2 µm, non-sterile 25 mm 100
SACS0202550 0.2 µm, sterile 25 mm 50
SACS0203050 0.2 µm, sterile 30 mm 50
SAC04525100 0.45 µm, non-sterile 25 mm 100
SAC04525500 0.45 µm, non-sterile 25 mm 500
Part number Features Diameter Quantity per box
SAC04530100 0.45 µm, non-sterile 30 mm 100
SAC04530500 0.45 µm, non-sterile 30 mm 500
SACS0452550 0.45 µm, sterile 25 mm 50
SACS0453050 0.45 µm, sterile 30 mm 50
Ordering information
Other design and pack sizes are available on request.
26. Hahnemühle Filtration
Syringe filters
26
Regenerated cellulose syringe filters
High resistance in filtration and sterilisation of aqueous and organic samples in HPLC and GC applications
- Regenerated cellulose membrane, hydrophilic
- Low protein adsorption
- High flow rate, high total throughput
- Resistant to almost all solvents and aqueous solutions
in pH range 3-12
- Sterilisation by gamma irradiation or ethylene oxide,
autoclaving is not recommended
- The resistance to various chemical solvents is summarised
on page 34
- Membrane diameters 13 mm, 25 mm and 30 mm
- Pore sizes 0.2 and 0.45 µm
Technical data
Material
Membrane
Diameter
Housing
material
Fitting inlet Fitting outlet
Filter area
(cm²)
Sample
volume (ml)
Hold up
volume (µl)
Max. pressure
(bar)
Max. Operating
Temp. (ºC)
Method of
sterilisation
Regenerated
celluloseMembrane
13 mm Polypropylen FemaleLuer-Lock Male Luer-Slip 1.09 1-10 25 6 50 γ-irradiation
25 mm Polypropylen FemaleLuer-Lock Male Luer-Slip 4.08 10-100 100 6 50 γ-irradiation
30 mm Polypropylen FemaleLuer-Lock Male Luer-Slip 5.39 100 200 6 50 γ-irradiation
LabScience
ALBET
Applications
- Filtration and clarification of small volumes of aqueous, organic and mixed solutions (0.45 µm)
- Sterilisation and clarification of cell and protein solutions and biological fluids without loss of proteins
(0.2 µm)
- HPLC: Filtering aqueous and organic solutions prior to sample injection (0.45 µm)
- GC: Preparation of samples (0.45 µm)
Part number Features Diameter Quantity per box
SCR02013100 0.2 µm, non-sterile 13 mm 100
SCR02025100 0.2 µm, non-sterile 25 mm 100
SCR04513100 0.45 µm, non-sterile 13 mm 100
Part number Features Diameter Quantity per box
SCR04525100 0.45 µm, non-sterile 25 mm 100
SCR04530100 0.45 µm, non-sterile 30 mm 100
Ordering information
Other design and pack sizes are available on request.
27. 27Syringe filters
Nylon syringe filters
Recommended for analytical applications, filtration of samples and solvents for HPLC under non-extreme conditions
- Nylon membrane, hydrophilic
- Perfect for dilute organic solvents (such as acetone,
methylene chloride and acetonitrile) and alkaline solutions
- Do not contain wetting agents
- High flow rate and high flow through volume
- Sterilisation by gamma irradiation or ethylene oxide,
autoclaving is not recommended
- The resistance to various chemical solvents is summarised on
page 34
- Membrane diameters 13 mm, 25 mm and 30 mm
- Pore sizes 0.2 and 0.45 µm
Technical data
Material
Membrane
Diameter
Housing
material
Fitting inlet Fitting outlet
Filter area
(cm²)
Sample
volume (ml)
Hold up
volume (µl)
Max. pressure
(bar)
Max. Operating
Temp. (ºC)
Method of
sterilisation
NylonMembrane
13 mm Polypropylen FemaleLuer-Lock Male Luer-Slip 1.09 1-10 25 6 50 γ-irradiation
25 mm Polypropylen FemaleLuer-Lock Male Luer-Slip 4.08 10-100 100 6 50 γ-irradiation
30 mm Polypropylen FemaleLuer-Lock Male Luer-Slip 5.39 100 200 6 50 γ-irradiation
LabScience
ALBET
Applications
- Filtration and clarification of small volumes prior to injection into HPLC system (0.45 µm)
- HPLC: Filtration of aqueous and organic solvents (0.45 µm)
- Sterilisation of aqueous and dilute organic solvents (0.2 µm)
Part number Features Diameter Quantity per box
SNY02013100 0.2 µm, non-sterile 13 mm 100
SNY02025100 0.2 µm, non-sterile 25 mm 100
SNY02025500 0.2 µm, non-sterile 25 mm 500
Part number Features Diameter Quantity per box
SNY045135100 0.45 µm, non-sterile 13 mm 100
SCR04525100 0.45 µm, non-sterile 25 mm 100
SNY04525500 0.45 µm, non-sterile 25 mm 500
Ordering information
Other design and pack sizes are available on request.
28. Hahnemühle Filtration
Syringe filters
28
PTFE syringe filters
Recommended for HPLC and GC samples, sterilisation and clarification of most solvents and filtration of gases and for air venting
- Polytetrafluorethylene (PTFE, Teflon) membrane,
hydrophobic
- Very high flow rate
- High chemical resistance to most solvents and acids
- Free from wetting agents
- Low hold up volume
- Sterilisation by autoclaving at 121 ºC or by ethylene oxide
- The resistance to various chemical solvents is summarised on
page 34
- They must be pre-wetted with a polar solvent such as ethanol
or isopropanol before filtering aqueous samples
- Membrane diameters 13 mm, 25 mm and 30 mm
- Pore sizes 0.2 and 0.45 µm
Technical data
Material
Membrane
Diameter
Housing
material
Fitting inlet Fitting outlet
Filter area
(cm²)
Sample
volume (ml)
Hold up
volume (µl)
Max. pressure
(bar)
Max. Operating
Temp. (ºC)
Method of
sterilisation
PTFEmembrane
13 mm Polypropylen FemaleLuer-Lock Male Luer-Slip 1.09 1-10 25 6 50 γ-irradiation
25 mm Polypropylen FemaleLuer-Lock Male Luer-Slip 4.08 10-100 100 6 50 γ-irradiation
30 mm Polypropylen FemaleLuer-Lock Male Luer-Slip 5.39 100 200 6 50 γ-irradiation
LabScience
ALBET
29. 29Syringe filters
Applications
- Sterilisation (0.2 µm) and clarification (0.45 µm) of most acids and aggressive solvents
- Degassing solvents (0.45 µm)
- Venting of containers (0.2 µm)
- Sterilisation of air, gas and aerosol (0.2 µm)
- Tool for protection within vacuum pump (0.2 µm)
- Clarification of small volume samples for HPLC and GC applications, which require greater
chemical resistance than regenerated cellulose syringes
- Excellent for the sterilisation and clarification of most solvents (such as acetone, dimethyl formamide or DMSO), and of very aggressive or
acidic solutions
- Filtration and degassing of solvents before being analysed (0.45 µm)
Part number Features Diameter Quantity per box
SPT02013100 0.2 µm, non-sterile 13 mm 100
SPT02025100 0.2 µm, non-sterile 25 mm 100
SPT04513100 0.45 µm, non-sterile 13 mm 100
Part number Features Diameter Quantity per box
SPT04525100 0.45 µm, non-sterile 25 mm 100
SPT04525500 0.45 µm, non-sterile 25 mm 500
SPT04530100 0.45 µm, non-sterile 30 mm 100
Ordering information
Other design and pack sizes are available on request.
Due to the colour code of Hahnemühles Syringe
Filters a mix-up can be excluded.
Orange = Cellulose acetate
Light blue = Regenerated Cellulose
Blue = Nylon
Pink = PTFE
30. 3030
Hahnemühle Filtration
Epilogue
Parameters and testing methods
Test Criteria Description Units
Pore size One dry membrane filter and one wetted with a special liquid are subjected to
continuously increasing pressure in a Coulter Porometer; in both cases the air
flow through the membrane is measured.
µm
Bubble point
DIN 58355 part 2
ASTM F 316
The membrane filter is wetted completely with water or isopropanol (PTFE
membranes) and a continuously increasing pressure is applied to the inlet side
until air bubbles appear at the outlet side. The bubble point correlates directly
with the pore size and can be used to check the integrity of the filter.
bar
Water Flow rate
DIN 58355 part 1
The time taken for a certain amount of prefiltered, deionised water (or ethanol
for PTFE filters) to pass through the membrane filter is determined at a vacuum
of 0.9 bar.
ml/min/cm2
Air flow rate The time taken for the filtration of a defined volume of air (e.g. 100 ml) at a
pressure of 3 mbar through a filter area of 6.45 cm².
ml/min/cm2
Thickness The determination is carried out using callipers with 2 cm² jaws and a contact
pressure of 0.1 bar (100 g/cm²).
µm
Wetting A membrane filter with a diameter of 50 mm is placed on water. The time taken
for it to become completely wetted is measured.
s
31. 3131End titles
Test Criteria Description Units
Burst pressure
DIN 53 141 part 1
A 10 cm² membrane sample is stretched over a rubber membrane. A constantly
increasing force is applied and the pressure at the moment of bursting is
measured.
bar
Extractable components
(loss in weight)
DIN 58 355 part 6
A membrane filter is weighed, placed in boiling water for 30 minutes, dried and
then reweighed. The loss in weight is a measure of the extractable component
fraction.
%
Bacterial challenge test
DIN 58 355 part 3
ASTM D 3863
A medium containing test bacteria is filtered through the membrane filter
(microorganism density 107 microorganisms/cm3). After an incubation period of
72 hours the filtrate must show no signs of bacterial growth.
Test bacteria: 0.15 µm - Burkholderia cepacia
0.2 µm - Brevundimonas diminuta
0.45 µm - Serratia marcescens
Visual
assessment
Checking the sterilisation method
with bio-indicators
DIN 58 948 part 8
During the sterilisation process test strips with living bacterial spores are applied
to the individually packed membranes. These are then incubated in a nutrient
solution. After 7 days no turbidity (=bacterial growth) should be visible.
Test spores: Ethylene oxide treatment - Bacillus subtilis
γ-Irradiation - Bacillus pumilus
Visual
assessment
37. ErdeLuft Wasser
Sichere Umweltanalytik
Probennahme · Probenvorbereitung · Analyse
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