Portable fire extinguishers
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Portable fire extinguishers are classified based on the type of fuel that is burning. Class A extinguishers are for ordinary combustibles like wood, paper, and plastic. Class B extinguishers are for flammable liquids like oil and gasoline. Class C extinguishers are for energized electrical equipment. Fire extinguishers are also rated based on their performance capability and identified by color codes. Proper inspection, care, and maintenance of fire extinguishers is important to ensure they are functional when needed.
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2. Specific types of outdoor air pollution discussed include smog, particulate matter, greenhouse gases, and natural sources like volcanic eruptions. Smog is formed from vehicle and industry emissions and can cause respiratory issues. Particulate matter comes from diesel exhaust and burning wood.
3. The document provides examples of historical smog events that caused many deaths, such as the 1952 London smog and 1966 New York City smog. Reducing indoor air pollution involves avoiding smoking indoors, proper ventilation
How to Use a Fire Extinguisher in an Emergency Situation?
Within 20 to 30 seconds, a fire could be out of control in front of you. Fire can spread, doubling up its size in seconds and not give you much time to escape. The quick fire-filled area contains heat and thick toxic smoke. In an instantaneous situation, you have to confront a fire with the right fire extinguisher for the specific type of fire. Learn how to use fire extinguishers and identify the fire class for appropriate fire extinguishers.
Choosing the right fire extinguisher may help you to stop the fire successfully. To defend the fire, the only option you have is that fire extinguisher to restrict fire spreading. A fire extinguisher is a device used for fire safety to extinguish small fires or flame in an emergency situation. A fire extinguisher is not intended for use in a large scale fire. Normally, a fire extinguisher is a hand-held pressurised cylinder having an agent such as nitrogen.
Classes of fire and how to extinguish them
This Slideshow will provide basic knowledge about fire and its classes and how to extinguish them using different kinds of fire extinguishers
Fire Protection System.Ashish.pptx
Fire protection System.This is analysis of fire Hazard, its soure and causes.Also The Detection and Prevention Methods of Fire Hazards.Types Of Fire Extinguisher.
Fire Prevention and Safety _041840.pptx
This document provides information on fire causes, prevention, and safety. It aims to give an understanding of fire chemistry and behavior, how to reduce fire risks, what to do in a fire emergency, and how to properly use fire extinguishers. Fires start when heat, fuel, and oxygen combine in the fire triangle. Common ignition sources include smoking, electrical equipment, and arson. All workplaces should have fire prevention, detection, and suppression systems in place and employees should receive fire safety training.
This expression is a blending of what’s wished for with what’s realistic. It ...
The document provides an orientation on fire safety and portable fire extinguishers. It discusses the purpose and importance of fire extinguishers, identifies the different types (Classes A, B, C, D, K) and explains the appropriate uses and safety precautions for each. It also covers requirements for proper selection, location and maintenance of fire extinguishers according to occupational safety standards.
Types of fire
Types of fire, Uses, Types of fire extinguisher, Uses, Do's and Don'ts of fire extinguishers along with their pictures
Portable-Fire-Extinguisher-for-Building-Management.ppt
Portable fire extinguishers are required in certain occupancies and must be visually inspected monthly and undergo annual maintenance. They have limitations and should only be used on small, incipient fires. There are different classes of extinguishers that are suited to different types of fires. To operate an extinguisher, one should remember the PASS acronym: Pull, Aim, Squeeze, Sweep. Grease fires require a different approach than other fires.
Portable-Fire-Extinguisher-for-Building-Management.ppt
Portable fire extinguishers are required in certain occupancies and must be visually inspected monthly and undergo annual maintenance. They have limitations and should only be used on small, incipient fires. There are different classes of extinguishers that are suited to particular types of fires. To operate an extinguisher, one should remember the PASS acronym: Pull, Aim, Squeeze, Sweep. Grease fires require a different approach than other fires.
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This expression is a blending of what’s wished for with what’s realistic. It ...
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Control of Hazardous Energy
Here are the key steps to properly lockout/tagout equipment using the rescue kit:
1. Identify all energy sources to the equipment. Locate all energy isolation devices like circuit breakers, gas valves, switches.
2. Shut down the equipment using normal shutdown procedures like pressing stop buttons.
3. Isolate each energy source device with the appropriate lockout device from the kit. For example, use a padlock to lock an electrical breaker in the off position.
4. Attach a tag to each lockout device clearly stating your name, the equipment being worked on, and the date.
5. Release any stored or residual energy like disconnecting springs or releasing hydraulic/pneum
EVOC review
The document discusses legal considerations and best practices for emergency vehicle operations. It outlines that emergency vehicle drivers are subject to traffic laws unless a specific exemption applies, and exemptions only apply when responding to a true emergency. It defines key terms like "true emergency" and "due regard." It also notes that emergency vehicle drivers can still be held liable for accidents even when operating under an exemption. The document emphasizes the importance of driving with caution and within your abilities while giving adequate notice to others on the road.
Hazard communication update
The document discusses the Globally Harmonized System (GHS) for classifying and labeling chemicals. The GHS aims to standardize chemical labeling and safety data sheets internationally in order to improve safety communication. It provides a common set of pictograms, signal words, hazard statements and safety precautions. The US adopted the GHS through revisions to its Hazard Communication Standard. The GHS system includes standardized criteria for classifying health, physical and environmental hazards, as well as a 16-section format for safety data sheets. Full implementation in the US workplace is required by June 2016.
Truck co tactics
This document discusses considerations and tactics for truck companies at structure fires. It covers primary tasks like search and rescue, laddering, and ventilation. It emphasizes safety, proper equipment, coordination, and conducting a thorough size-up upon arrival. Tactics covered include apparatus positioning, portable ladder selection and placement, ventilation methods and hazards, conducting primary and secondary searches, providing for rescued occupants, and performing overhaul operations.
Persuasive communications
This document discusses persuasive communication techniques for fire officers. It introduces the concept of persuasion as an important communication tool. It then outlines the Motivated Sequence Pattern, a 5-step organizational approach developed by Alan Monroe to most effectively persuade listeners. The steps include getting the listener's attention, establishing a need or problem, outlining a satisfying solution, visualizing the benefits of the solution, and calling the listener to take action. Used effectively, this pattern can help fire officers address issues and motivate change.
Natural gas and propane
This document discusses propane and natural gas. It notes that propane and butane are the two major LP-gases extracted, with 30% coming from crude oil and 70% from natural gas. It provides information on common blends used in the LP-gas industry. It also discusses the odorless and flammable nature of propane and notes how an odorant is added, as well as safety information and guidelines for responding to gas leaks and fires.
2014 electrical safety
Electricity is the second leading cause of death in construction, accounting for over 600 deaths annually. Proper safety procedures and equipment are required to prevent electrical accidents and injuries. Key risks include contacting energized power lines or equipment, using defective tools or cords, and failing to follow lockout/tagout procedures to de-energize circuits before working. Proper grounding, GFCI protection, insulation, and avoiding overloads are vital for electrical safety.
Firefighter survival awareness
The document discusses how firefighters can prevent Mayday situations through proper situational awareness and training. It describes past line-of-duty deaths where firefighters lacked awareness of changing conditions or needed skills like calling a Mayday. The document outlines how to assess smoke conditions, maintain orientation, recognize worsening fire behavior, and communicate on the fireground to continuously evaluate risk. Maintaining awareness of construction hazards, preplanning buildings, and coordinating efforts between crews can help firefighters operate safely and avoid becoming trapped.
Engine company operations
The document discusses RECEO, which outlines the priority sequence of firefighting operations as rescue, exposures, confinement, extinguishment, and overhaul. It also discusses apparatus positioning, hose selection and placement, water flow requirements, and methods of fire attack including direct, indirect, modified direct, and transitional. Key considerations for engine company operations include pre-planning duties and communications, protecting occupants and firefighters, and choosing the appropriate attack based on life safety and fire conditions.
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如何办理(uvic毕业证书)维多利亚大学毕业证本科学位证书原版一模一样
原版纸张【微信：741003700 】【(uvic毕业证书)维多利亚大学毕业证】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
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6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
Sharlene Leurig - Enabling Onsite Water Use with Net Zero Water
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Syllabus of Second Year B. Pharmacy
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Travis Hills' Endeavors in Minnesota: Fostering Environmental and Economic Pr...
Travis Hills of Minnesota developed a method to convert waste into high-value dry fertilizer, significantly enriching soil quality. By providing farmers with a valuable resource derived from waste, Travis Hills helps enhance farm profitability while promoting environmental stewardship. Travis Hills' sustainable practices lead to cost savings and increased revenue for farmers by improving resource efficiency and reducing waste.
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2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
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and analysis methods, numerous infrastructure platforms have been developed for phenotyping.
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Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...
Comparing Evolved Extractive Text Summary Scores of Bidirectional Encoder Rep...University of Maribor
Slides from:
11th International Conference on Electrical, Electronics and Computer Engineering (IcETRAN), Niš, 3-6 June 2024
Track: Artificial Intelligence
https://www.etran.rs/2024/en/home-english/Nucleophilic Addition of carbonyl compounds.pptx
Nucleophilic addition is the most important reaction of carbonyls. Not just aldehydes and ketones, but also carboxylic acid derivatives in general.
Carbonyls undergo addition reactions with a large range of nucleophiles.
Comparing the relative basicity of the nucleophile and the product is extremely helpful in determining how reversible the addition reaction is. Reactions with Grignards and hydrides are irreversible. Reactions with weak bases like halides and carboxylates generally don’t happen.
Electronic effects (inductive effects, electron donation) have a large impact on reactivity.
Large groups adjacent to the carbonyl will slow the rate of reaction.
Neutral nucleophiles can also add to carbonyls, although their additions are generally slower and more reversible. Acid catalysis is sometimes employed to increase the rate of addition.
Cytokines and their role in immune regulation.pptx
This presentation covers the content and information on "Cytokines " and their role in immune regulation .
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
Context. With a mass exceeding several 104 M⊙ and a rich and dense population of massive stars, supermassive young star clusters
represent the most massive star-forming environment that is dominated by the feedback from massive stars and gravitational interactions
among stars.
Aims. In this paper we present the Extended Westerlund 1 and 2 Open Clusters Survey (EWOCS) project, which aims to investigate
the influence of the starburst environment on the formation of stars and planets, and on the evolution of both low and high mass stars.
The primary targets of this project are Westerlund 1 and 2, the closest supermassive star clusters to the Sun.
Methods. The project is based primarily on recent observations conducted with the Chandra and JWST observatories. Specifically,
the Chandra survey of Westerlund 1 consists of 36 new ACIS-I observations, nearly co-pointed, for a total exposure time of 1 Msec.
Additionally, we included 8 archival Chandra/ACIS-S observations. This paper presents the resulting catalog of X-ray sources within
and around Westerlund 1. Sources were detected by combining various existing methods, and photon extraction and source validation
were carried out using the ACIS-Extract software.
Results. The EWOCS X-ray catalog comprises 5963 validated sources out of the 9420 initially provided to ACIS-Extract, reaching a
photon flux threshold of approximately 2 × 10−8 photons cm−2
s
−1
. The X-ray sources exhibit a highly concentrated spatial distribution,
with 1075 sources located within the central 1 arcmin. We have successfully detected X-ray emissions from 126 out of the 166 known
massive stars of the cluster, and we have collected over 71 000 photons from the magnetar CXO J164710.20-455217.
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mô tả các thí nghiệm về đánh giá tác động dòng khí hóa sau đốt
mô tả các thí nghiệm về đánh giá tác động dòng khí hóa sau đốt
EWOCS-I: The catalog of X-ray sources in Westerlund 1 from the Extended Weste...
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Portable fire extinguishers
- 2. Portable Fire Extinguishers Fire extinguisher classifications.
- 3. Portable fire extinguishers are chosen based on the type of fuel burning.
- 4. Fuel Textiles Paper Plastics Rubber Wood Extinguished with: Water Water-based agents (Class A foam) Dry Chemicals Class A fires involve ordinary combustibles.
- 5. Fuel Alcohol Gasoline Lubricating Oils Liquefied petroleum gas (LPG) Extinguished with: Carbon Dioxide Dry Chemicals Class B Foam Class B fires involve flammable, combustible liquids and gases.
- 6. Class C fire involves energized electrical equipment. Treat as Class A or B once power is off
- 7. Class D fires involve combustible metals and alloys.
- 8. CAUTION! The use of water or water-based agents on Class D fires will cause the fire to react violently, emit bits of molten metal, and possibly injure firefighters close by.
- 9. Use dry powder, not dry chemical, extinguishers on Class D fires.
- 10. CAUTION! Do not use a dry chemical extinguisher on Class D fire. The dry chemical often reacts violently with burning metals.
- 11. Class K fires involve combustible cooking oils. Vegetable or animal fats Burn at extreme temperatures Found at commercial, institutional, industrial, home Controlled by wet chemical systems, portable extinguishers
- 12. Portable Fire Extinguishers Types of fire extinguishers.
- 13. Fire extinguishers are organized by type of extinguishing agent and the method used to expel their contents. (Cont.)
- 14. Fire extinguishes are organized by type of extinguishing agent and the method used to expel their contents.
- 15. Use stored-pressure water extinguishers on small Class A fires.
- 16. Use wet chemical stored-pressure extinguishers on Class K fires. Potassium based, low pH Saponification CourtesyofRonMoore/McKinney(TX)FD
- 17. Clean agent extinguishers replaced halogenated agents. CourtesyofAnsulCorp.
- 18. Carbon dioxide (CO2) extinguishers discharge as a gas and are most effective on Class B and C fires.
- 19. CO2 is stored under its own pressure and is discharged through a plastic or rubber horn. O2 CO2 Dry ice crystals • Smothers fire • Little cooling effect • Reignition possible
- 20. CAUTION! When carbon dioxide is discharged, a static electrical charge builds up on the discharge horn. Touching the horn before the charge has dissipated can result in a shock.
- 21. Dry chemical extinguishers use additives to keep extinguishing agents ready for use, even after long storage periods.
- 22. Dry chemical extinguishers may react chemically with other types of extinguishing agents.
- 23. WARNING! Never mix or contaminate dry chemicals with any other type of agent.
- 24. Dry chemical agents are considered non-toxic and safe for use.
- 25. Follow these steps when using dry chemical extinguishers on Class A fires.
- 26. Portable Fire Extinguishers Fire extinguisher rating system.
- 27. Fire extinguishers are rated according to performance capability. (Cont.)
- 28. Fire extinguishers are rated according to performance capability.
- 29. Fire extinguishers rated for multiple classes of fire are identified by a combination of letters.
- 30. Fire extinguishers are identified by colored geometric shapes or pictographs.
- 31. Fire extinguishers are chosen to achieve two main goals.
- 32. Consider several factors when selecting the proper fire extinguisher.
- 33. After you select the extinguisher make a quick visual inspection.
- 34. Follow these general steps for using fire extinguishers. (Cont.)
- 35. Follow these general steps for using fire extinguishers. • If not extinguished after full discharge, withdraw and reassess • If solid fuel, use appropriate tool to overhaul • If liquid fuel, appropriate foam may be necessary
- 36. Remember the following considerations when using extinguishers.
- 37. Portable Fire Extinguishers Inspection, care, and maintenance
- 38. Follow these general procedures for every extinguisher inspection. (Cont.)
- 39. Follow these general procedures for every extinguisher inspection.
- 40. Follow these steps if any extinguishers are found to be deficient.
- 41. Follow these general guidelines when caring for extinguishers. (Cont.)
- 42. Follow these general guidelines when caring for extinguishers.
- 43. Clean extinguishers periodically and after every use.
- 44. Extinguishers require for annual inspection and maintenance.
- 45. • Portable fire extinguishers can control or extinguish small incipient or early growth stage fires quickly in the hands of trained personnel; you must be familiar with their characteristics and be able to select and use them properly. Summary (Cont.)
- 46. • Inspecting, caring for, maintaining extinguishers assigned to your apparatus and facility are also important skills for you to have. Summary