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These materials have been developed based on applicable federal laws and regulations in place at the time the materials were created. The program is being.

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Presentation on theme: "These materials have been developed based on applicable federal laws and regulations in place at the time the materials were created. The program is being."— Presentation transcript:

1 These materials have been developed based on applicable federal laws and regulations in place at the time the materials were created. The program is being provided for educational and informational purposes only and does not constitute and is not intended to provide OSHA compliance certification, regulatory compliance, a substitute for any "hands on training required by applicable laws and regulations, or other legal or professional advice or services. By accessing the materials, you assume all responsibility and risk arising from the use of the content contained therein. ©2010 Grainger Safety Services, Inc. FHM TRAINING TOOLS This training presentation is part of FHMs commitment to creating and keeping safe workplaces. Be sure to check out all the training programs that are specific to your industry.

2 These materials have been developed based on applicable federal laws and regulations in place at the time the materials were created. The program is being provided for educational and informational purposes only and does not constitute and is not intended to provide OSHA compliance certification, regulatory compliance, a substitute for any "hands on training required by applicable laws and regulations, or other legal or professional advice or services. By accessing the materials, you assume all responsibility and risk arising from the use of the content contained therein. ©2010 Grainger Safety Services, Inc. Compressed Gases

3 Learning Objectives At the conclusion of this presentation, you will: Know types of gases in compressed gas cylinders Recognize hazards associated with these gases Know safe use practices of compressed gases

4 Agenda Presentation agenda: Information on compressed gases and cylinders Chemical and physical hazards Your responsibilities

5 Compressed Gases and Cylinders Information Section 1

6 Compressed Gas Cylinders Standard portable industrial gas cylinder: Stores gases at high pressures 57in tall, 9in diameter One-quarter inch thickness About 155lbs in weight when filled 330 cubic ft of gas at 2640 lbs per square inch

7 Four Types of Compressed Gases Substance types in gas cylinders: Gas at standard temperature, increased pressure Liquefies at standard temperature, increased pressure Dissolved in a solvent Liquefies at reduced temperature, increased pressure

8 Gas at STP Gases at standard temperature: Air Argon Helium Nitrogen Oxygen

9 Liquefied Gases Liquefied gases at standard temperature: Butane Propane Carbon dioxide Nitrous oxide

10 Dissolved Gases Gases dissolved in a solvent at standard temperature: Acetylene

11 Cryogenic Gases Liquefied gases at reduced temperature: Liquid nitrogen Liquid oxygen Carbon dioxide

12 Hazards of Compressed Gas Systems Hazards of use, storage, and handling of cylinders: Chemical hazards: –Associated with cylinder contents Physical hazards: –Due to presence of a high pressure vessel

13 Chemical Hazards Section 2

14 Chemical Hazards Chemical hazards of compressed gases: Flammable Corrosive Explosive Poisonous Inert Acidic Reactive

15 Labeling and Material Safety Data Sheets Labeling and MSDS practices: Cylinders may be stenciled or stamped Three-part tag systems Cylinder color-coding is unreliable Periodic inspections All gases to be included in: –Hazard communication chemical inventory –Material Safety Data Sheets

16 Segregation Compressed gases should be segregated from: High traffic areas Oil and grease Flames, sparks, heat, or ignition Electrical circuits Cylinders should be protected from: Ground Direct sunlight Dampness Salt and other corrosives

17 Fire Protection Cylinders containing flammable gases should be: Separated from cylinders containing oxidizing gas: –20 feet –5 foot fire-resistant barrier Stored in a well-ventilated space Use flow restrictors or surge protectors

18 Cylinder Leaks Leak detection procedures: For flammable gas – soapy water solution Temperatures at or below freezing use 50% glycerin-water For toxic/corrosive gas – test with inert gas Establish emergency procedures

19 Engineering Controls Common engineering controls: Emergency shutoff switch Gas cylinder cabinets Flow restrictors Emergency eyewash

20 Physical Hazards Section 3

21 Physical Hazards Container may rupture due to: Forklift puncture Knocked over Ruptured tanks May become projectiles Release toxic gas into the atmosphere Turn the environment flammable

22 Securing Cylinders Gas cylinders must be secured at all times: In a vertical position Secured at 2/3 of its height with: –Chain, plastic coated wire cable, or straps Secured individually

23 Transporting Cylinders Rules for transporting: Never drag, slide, or roll a cylinder Always have valve cap on Never transport with regulator in place Ensure its secured to cart Do not drop or strike against objects Do not lift by valve cover Do not use ropes or slings

24 Cylinder Testing Test information marked on cylinder: Hydrostatic and burst testing are most common Hydrostatic or ultrasonic testing is required every years 1.DOT Specifications – Material or Construction Serial Number 2.Registered Owner 3.Date of Manufacture and original hydrostatic test 4.Neck Ring – Current Owner 5.Retest Markings 6.Barcode 7.Cylinder Manufacturers Marking 8.TW = Tare Weight

25 Valve Connections Cylinder attachments: Cap over valve to protect it Some cylinders have a protective frame Pressure regulator: –Pressure gauge –Flow adjustment

26 Gas Lines and Piping Guidelines: All gas lines should be labeled Hoses should be examined Avoid unnecessarily long hoses Keep hoses free of kinks Keep hoses away from high traffic areas Repair leaks promptly One hose per type of gas

27 The Regulator Precautions: Make sure correct regulator is equipped Inspect regulator and cylinder Never use grease or oil Valve handle should be easily accessible Use proper tools for valves Check MSDS Fire extinguishers Valve outlet facing away

28 Cylinder Storage Storage area should be: Away from heat and ignition sources Designated no smoking Marked as gas storage Restricted access Provided with appropriate equipment

29 Cylinder Storage (continued) Gas containers should be: Capped, stood upright, and properly secured Segregated according to categories Segregated according to full or empty Manage so oldest is used first Periodically checked for condition

30 Empty Cylinders Proper procedure: Considered full until identified as empty by user Labeled M T or tagged when empty Empty cylinders are returned to supplier Leave 25 psig minimum pressure Do not leave empty cylinders attached to pressurized system

31 Your Responsibilities Section 4

32 Your Responsibilities Your responsibilities include: Knowing content of cylinders used Regulator, valve, and hose maintenance Following rules for storage, transportation, and use Knowing what to do in an emergency

33 Additional Information Compressed Gas Safety: General Safety Guidelines, Montana Department of Labor and Industry Air Products Safety Grams Compressed Gas Association (CGA) Compressed Gases Self Inspection Checklist, National Institute for Occupational Safety and Health (NIOSH) Safety Checklist Program for Schools


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