Waterstoflekdetectie is een vrij nieuwe methode voor het
opsporen van lekkages in verpakkingen. Doordat waterstof het kleinste molecuul is, kunnen hiermee minuscule lekken vrij eenvoudig worden opgespoord, zij het niet bij alle verpakkingen.
El documento habla sobre los sistemas hipermedia, que permiten vincular no solo texto sino también otros medios digitales como imágenes, video y audio. Explica que el hipermedia requiere el conocimiento de varias áreas como comunicación e informática. También define conceptos relacionados como hipertexto, hiperdocumento y multimedia.
Este documento es un presupuesto estimado para reparar la puerta delantera izquierda de un Ford Expedition 2011. Incluye una lista de materiales y mano de obra requeridos, un resumen de costos, y términos y condiciones para la reparación como el pago requerido y responsabilidades. El costo total estimado de la reparación es de 79.535,62 bolívares.
This document discusses trends in indoor location-based services and provides examples of implementations. It notes that $500B in retail commerce will be conducted on mobile phones by 2015 and that most purchase decisions are made in stores. Beacons using Bluetooth 4.0 can enable proximity-based triggers and personalized engagement. The document describes how beacons have been used at Apple Stores and Macy's to provide interactive experiences. It also outlines the components involved in indoor location solutions and notes that indoor location services will revolutionize customer experiences and drive new revenue opportunities.
Find out how aisle411's indoor location technology can enable mobile retail, and drive purchases.
aisle411 is the leading indoor location services platform for retailers, which includes some of the world’s top retailers and consumer brands as clients and partners servicing over 12,000 retail locations.
Presented by Founder and CEO of aisle411, Nathan Pettyjohn, at Opus Research's Place Conference, 2014 (London).
Harnessing oxygen to boost performance in wastewater treatment plant upgradeLinde Gas Benelux
The SOLVOX®-V process combines excellent oxygen utilisation and high oxygenation efficiency rates, together with intensive wastewater agitation. It is more economical than other methods and offers high flexibility for oxygen dissolution and process mixing, especially when integrated with existing aeration equipment.
El documento habla sobre los sistemas hipermedia, que permiten vincular no solo texto sino también otros medios digitales como imágenes, video y audio. Explica que el hipermedia requiere el conocimiento de varias áreas como comunicación e informática. También define conceptos relacionados como hipertexto, hiperdocumento y multimedia.
Este documento es un presupuesto estimado para reparar la puerta delantera izquierda de un Ford Expedition 2011. Incluye una lista de materiales y mano de obra requeridos, un resumen de costos, y términos y condiciones para la reparación como el pago requerido y responsabilidades. El costo total estimado de la reparación es de 79.535,62 bolívares.
This document discusses trends in indoor location-based services and provides examples of implementations. It notes that $500B in retail commerce will be conducted on mobile phones by 2015 and that most purchase decisions are made in stores. Beacons using Bluetooth 4.0 can enable proximity-based triggers and personalized engagement. The document describes how beacons have been used at Apple Stores and Macy's to provide interactive experiences. It also outlines the components involved in indoor location solutions and notes that indoor location services will revolutionize customer experiences and drive new revenue opportunities.
Find out how aisle411's indoor location technology can enable mobile retail, and drive purchases.
aisle411 is the leading indoor location services platform for retailers, which includes some of the world’s top retailers and consumer brands as clients and partners servicing over 12,000 retail locations.
Presented by Founder and CEO of aisle411, Nathan Pettyjohn, at Opus Research's Place Conference, 2014 (London).
Harnessing oxygen to boost performance in wastewater treatment plant upgradeLinde Gas Benelux
The SOLVOX®-V process combines excellent oxygen utilisation and high oxygenation efficiency rates, together with intensive wastewater agitation. It is more economical than other methods and offers high flexibility for oxygen dissolution and process mixing, especially when integrated with existing aeration equipment.
High purity specialty gases play a pivotal role across the spectrum of gold mining and the subsequent metallurgical processing, purification and refining of ore into gold bars.
The demand for efficient and cost effective wastewater treatment technology in the refining and petrochemical sector is being driven by not only ever-tightening environmental legislation, but also by the sectors own desire to follow a meaningful sustainability agenda and to take its responsibilities around product stewardship seriously.
Treatment of wastewater from petrochemical plants can be a challenging and costly matter; particularly when needing to comply with the requirements of operational permits and national environmental legislation governing the discharge of treated wastewater into community treatment plants or natural water bodies such as rivers, lakes and oceans.
The contribution of industrial gases across the entire petrochemical processing spectrum is fast becoming absolutely critical to optimal outcomes. From extraction to distribution, these gases play a pivotal role throughout the value chain.
Harmonizing the global language of safety - a monumental but necessary undert...Linde Gas Benelux
The document discusses the global harmonization of chemical classification and labeling through initiatives like the UN's Globally Harmonized System of Classification and Labelling of Chemicals (GHS) and the European Union's REACH and CLP regulations. It describes the goals of establishing uniform worldwide criteria for chemical hazards and facilitating international trade. It also explains the challenges for industry in implementing these new regulations, which require changes to product labeling, safety data sheets, and other processes by strict deadlines. Harmonization efforts aim to standardize hazard communication and improve safety, but require tremendous resources to ensure compliance throughout complex global supply chains.
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GC-MS is emerging as the perfect forensic tool for its ability to qualitatively identify chemicals in a sample. It answers the question "What molecules are present?". This is important for research and lays the foundation for further quantitative analysis. GC-MS separates components using differences in chemical properties, then the MS identifies components by mass to charge ratio. It has become a gold standard technique for food and drug safety due to its ability to quickly and accurately identify contaminants. Advances in miniaturization have increased its portability and applications.
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Laboratories all around the world stand or fall by their reputation for accuracy and quality control. Pivotal to this performance is the quality, purity and composition of the spectrum of gases harnessed every day to accomplish laboratory tasks.
Rapid advancements in production processes across all industry sectors, as well as healthcare, have obliged laboratories to keep up with these changes, while remaining flexible and making allowances for future requirements. Against this background, a variety of role-specific specialised laboratory types have emerged, each addressing specific industry needs.
Linde Gas whitepaper 'Gases: identifying hazards and mitigating risks'Linde Gas Benelux
Although critical for the operation of refineries and petrochemical plants, industrial gases can be associated with a spectrum of possible hazards and need to be treated with respect, assessing and controlling the relevant risks. From minor injury at one end of the scale, to potentially more serious damage to health and - although rare - even death, at the other end, safe handling of gases is vital. Effective product stewardship is therefore required to uphold safety levels at such facilities — a holistic approach to product responsibility that involves identifying the possible hazards and evaluating the risks that may stem from a product throughout all stages of its lifecycle. The risk potential is assessed in relation to employees, neighbouring facilities, and the environment. The aim is then to avoid or reduce these risks as far as possible.
Linde Gas whitepaper 'Employing Oxyfuel Technology for Energy Efficiency'Linde Gas Benelux
With continuing increases in fuel and energy costs, energy efficiency – and by association, decreased fuel consumption - has become one of the most important issues facing the process industries today. Combined with demands to increase production yield and also align processes to comply with environmental regulations - particularly those associated to emissions reduction – industry has seen continued momentum in the uptake of oxyfuel technologies.
Linde Gas whitepaper 'Drug discovery advances inextricably linked to specialt...Linde Gas Benelux
The development and commercialisation of new medical drugs is a complex and costly process, but increasing pressure is being placed on drug companies to accelerate the timeline from discovery of new drugs, through to clinical trials and then to their release onto the market. The pharmaceutical industry continues to demand ever more advanced products aimed at improving health and the quality of modern-day life.
Research and development take place in pharmaceutical laboratories using analytical instruments such as gas chromatographs with multiple detectors, liquid chromatographs coupled with mass spectrometers (LC-MS), ultraviolet/visible (UV/VIS) spectrometers and nuclear magnetic resonance (NMR) spectrometers. These significantly accelerate research and development cycles, ultimately bringing beneficial drugs onto the market faster than ever before. The effective operation of these instruments depends on the use of the appropriate gases or gas mixtures.
A look at how automotive emissions legislation and the drive for energy sustainability are impacting the refining industry.
Both recent - and upcoming - legislation on automobile emissions has become the major change agent within this environmental arena. As with all legislation, regulation around emissions levels the playing field for all stakeholders in the automotive industry, effectively ensuring a competitive business climate. All participants must adjust their operations to comply with the latest regulations, leaving no-one at a competitive disadvantage.
High purity specialty gases play a pivotal role across the spectrum of gold mining and the subsequent metallurgical processing, purification and refining of ore into gold bars.
The demand for efficient and cost effective wastewater treatment technology in the refining and petrochemical sector is being driven by not only ever-tightening environmental legislation, but also by the sectors own desire to follow a meaningful sustainability agenda and to take its responsibilities around product stewardship seriously.
Treatment of wastewater from petrochemical plants can be a challenging and costly matter; particularly when needing to comply with the requirements of operational permits and national environmental legislation governing the discharge of treated wastewater into community treatment plants or natural water bodies such as rivers, lakes and oceans.
The contribution of industrial gases across the entire petrochemical processing spectrum is fast becoming absolutely critical to optimal outcomes. From extraction to distribution, these gases play a pivotal role throughout the value chain.
Harmonizing the global language of safety - a monumental but necessary undert...Linde Gas Benelux
The document discusses the global harmonization of chemical classification and labeling through initiatives like the UN's Globally Harmonized System of Classification and Labelling of Chemicals (GHS) and the European Union's REACH and CLP regulations. It describes the goals of establishing uniform worldwide criteria for chemical hazards and facilitating international trade. It also explains the challenges for industry in implementing these new regulations, which require changes to product labeling, safety data sheets, and other processes by strict deadlines. Harmonization efforts aim to standardize hazard communication and improve safety, but require tremendous resources to ensure compliance throughout complex global supply chains.
Gas Chromatography-Mass Spectometry (GC-MS): the superior forensic toolLinde Gas Benelux
GC-MS is emerging as the perfect forensic tool for its ability to qualitatively identify chemicals in a sample. It answers the question "What molecules are present?". This is important for research and lays the foundation for further quantitative analysis. GC-MS separates components using differences in chemical properties, then the MS identifies components by mass to charge ratio. It has become a gold standard technique for food and drug safety due to its ability to quickly and accurately identify contaminants. Advances in miniaturization have increased its portability and applications.
Specialty gases: essential for research, production & quality controlLinde Gas Benelux
Laboratories all around the world stand or fall by their reputation for accuracy and quality control. Pivotal to this performance is the quality, purity and composition of the spectrum of gases harnessed every day to accomplish laboratory tasks.
Rapid advancements in production processes across all industry sectors, as well as healthcare, have obliged laboratories to keep up with these changes, while remaining flexible and making allowances for future requirements. Against this background, a variety of role-specific specialised laboratory types have emerged, each addressing specific industry needs.
Linde Gas whitepaper 'Gases: identifying hazards and mitigating risks'Linde Gas Benelux
Although critical for the operation of refineries and petrochemical plants, industrial gases can be associated with a spectrum of possible hazards and need to be treated with respect, assessing and controlling the relevant risks. From minor injury at one end of the scale, to potentially more serious damage to health and - although rare - even death, at the other end, safe handling of gases is vital. Effective product stewardship is therefore required to uphold safety levels at such facilities — a holistic approach to product responsibility that involves identifying the possible hazards and evaluating the risks that may stem from a product throughout all stages of its lifecycle. The risk potential is assessed in relation to employees, neighbouring facilities, and the environment. The aim is then to avoid or reduce these risks as far as possible.
Linde Gas whitepaper 'Employing Oxyfuel Technology for Energy Efficiency'Linde Gas Benelux
With continuing increases in fuel and energy costs, energy efficiency – and by association, decreased fuel consumption - has become one of the most important issues facing the process industries today. Combined with demands to increase production yield and also align processes to comply with environmental regulations - particularly those associated to emissions reduction – industry has seen continued momentum in the uptake of oxyfuel technologies.
Linde Gas whitepaper 'Drug discovery advances inextricably linked to specialt...Linde Gas Benelux
The development and commercialisation of new medical drugs is a complex and costly process, but increasing pressure is being placed on drug companies to accelerate the timeline from discovery of new drugs, through to clinical trials and then to their release onto the market. The pharmaceutical industry continues to demand ever more advanced products aimed at improving health and the quality of modern-day life.
Research and development take place in pharmaceutical laboratories using analytical instruments such as gas chromatographs with multiple detectors, liquid chromatographs coupled with mass spectrometers (LC-MS), ultraviolet/visible (UV/VIS) spectrometers and nuclear magnetic resonance (NMR) spectrometers. These significantly accelerate research and development cycles, ultimately bringing beneficial drugs onto the market faster than ever before. The effective operation of these instruments depends on the use of the appropriate gases or gas mixtures.
A look at how automotive emissions legislation and the drive for energy sustainability are impacting the refining industry.
Both recent - and upcoming - legislation on automobile emissions has become the major change agent within this environmental arena. As with all legislation, regulation around emissions levels the playing field for all stakeholders in the automotive industry, effectively ensuring a competitive business climate. All participants must adjust their operations to comply with the latest regulations, leaving no-one at a competitive disadvantage.
1. vmt . 22 november 2013 . Nr 25
Voedselveiligheid & Kwaliteit
Thema: Detectiesystemen
Met waterstof lek detecteren
Waterstoflekdetectie is een
vrij nieuwe methode voor het
opsporen van lekkages in verpakkingen. Doordat waterstof
het kleinste molecuul is, kunnen hiermee minuscule lekken
vrij eenvoudig worden opgespoord, zij het niet bij alle
verpakkingen.
Waterstof is het kleinste molecuul op aarde
en komt van nature in zeer kleine hoeveelhe-
Bij 60 slagen per minuut kunnen
den voor in lucht (0,5 ppm). Door zijn
lekken van 200 tot 500 µm worden
minuscule omvang kan het gas gemakkelijk
ontdekt.
via eventuele kleine lekkages in de verpakking zelf of in de seal ontsnappen. Bij MAPverpakkingen moet daarvoor aan het gasmengsel 4% waterstof worden toegevoegd.
twee verpakkingen tegelijkertijd. Bij deze
stofgascilinders worden in de buitenlucht
Gasmengsels met minder dan 5% waterstof
snelheid detecteert de sensor lekkages van
geplaatst. De gasmenger met elektronische
zijn geclassificeerd als niet brandbaar.
200 tot 500 µm.
waterstofanalyse is ATEX gespecificeerd,
wat betekent dat er geen componenten in
Bovendien is waterstof niet giftig, heeft het
geen nadelige effecten op het milieu en rea-
Geschikte verpakkingen
zijn verwerkt die een ontsteking kunnen
geert het gas niet met verpakte voedingsmid-
Waterstoflekdetectie is niet bruikbaar bij
veroorzaken. Het op deze manier werken
delen. Waterstof valt onder de gebruikelijke
alle verpakkingen. MAP-verpakkingen die
met waterstof is dus absoluut veilig.
declaratie voor MAP-verpakkingen ‘verpakt
enigszins ingedrukt kunnen worden, zijn
De hierboven genoemde regels gelden voor
onder beschermende atmosfeer’. Het heeft
het meest geschikt. Dat zijn bijvoorbeeld
gasverpakkers (producenten) die met vloei-
E949 als gecertificeerd E-nummer.
verpakkingen van flowpackers, dieptrek-
bare gassen werken. Voor producenten die
kers en traysealers. Verpakkingen dus,
met gascilinders of gaspakketten (een pallet
Methode
waarin voedsel maar ook andere voor lek-
met 16 gascilinders) werken, bestaat ook de
Waterstoflekdetectie is een volledige in-line
kage gevoelige producten, worden verpakt.
mogelijkheid om voorgemengde gassen te
methode. De verpakking wordt via een lopen-
De verpakkingen moeten gevuld zijn met
gebruiken met daarin waterstof. In dat
de band door de lekdetectietunnel gevoerd.
een inert gas of een gasmengsel (stikstof en
geval zijn er geen bijzondere veiligheidsei-
Een bovenband in de tunnel drukt de verpak-
koolzuur), waaraan waterstof is toegevoegd.
sen. De plaatsing van de installatie dient,
king enigszins samen. Als de waterstofsensor
De verpakkinggrootte is maximaal 300 mm
zoals bij elke gasinstallatie, bij de plaatselij-
een verhoogde concentratie waterstof waar-
breed en 150 mm hoog, maar kan naar
ke gemeente te worden doorgegeven.
neemt, betekent dit dat er een lek in de ver-
wens worden aangepast. Het minimale gas-
pakking zit. Deze lekke verpakking wordt dan
volume in de verpakking moet
automatisch uitgestoten door middel van een
20-25 ml zijn.
uitstootsysteem dat op perslucht werkt.
• Ronald Lugtenburg •
De lijnsnelheid voor een enkele verpakking
Veiligheid boven alles
R. Lugtenburg, Application Engineer Food,
bedraagt zo’n 60 slagen per minuut. In het
De opstelling met de menger die het water-
Linde Gas Benelux, 010-2461399,
geval van hogere snelheden, meet het systeem
stof met de andere gassen mengt en water-
ronald.lugtenburg@linde.com
035