OSHA’s PSM standard requires Operating Procedures to address “special or unique hazards” 1910.119(f)(1)(iii) Safety and health considerations:…1910.119(f)(1)(iii)(E) Any special or unique hazards. This item is often not necessary with many of the PSM standard’s Highly Hazardous Chemicals; however, HFO-1234yf has a unique property that falls into this requirement. HFO-1234yf is…… Membership Required You must be...
Pride: “Don’t insult my intelligence.” Heroic: “I’ll get it done, by hook or by crook.” Invulnerable: “That can’t happen to me.” Fatalistic: “What’s the use?” Bald Tire: “Gone 60K miles without a flat yet.” Summit Fever: “We’re almost done.” Pollyanna: “Nothing bad will happen.”… Membership Required You must be a member to access this content.View...
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Cases of Stress Corrosion Cracking (SCC) in steel vessels using NH3 have been reported by members of the ammonia refrigeration industry. When NH3 is used as a refrigerant, it is kept at -33° C (-28° F). While it was once believed that NH3 SCC)could not occur at such low temperatures, both practical experience and experimental studies have shown…...
The Chlorine Institute Pamphlet 65, Personal Protective Equipment For Chlor-Alkali Chemicals, has been updated and is available in the bookstore. This edition was updated to include new guidance on the use of contact lenses. Additionally, guidance on exposure limits, respiratory protection, and maintenance of PPE was expanded. Pictures and examples of levels of PPE and…...
Coverage: National Period: 30 days, 7/17/15 to 8/16/15 New Inspections: Opened in the last 30 days = 4,371 Closed Inspections: Closed in the last 30 days = 4,319 Ongoing Inspections: Opened prior to 30 day reporting period and still not closed = 119,926 Inspections with Violations = 113 Inspections with no Violations = 4,258 Assessed…...
As I have written earlier, the new refrigerant HFO-1234yf is a Category 1 Flammable Gas. This flammable gas is stored under pressure as a liquid, which by definition makes this material a candidate for a BLEVE risk assessment. For those that are not familiar with the acronym BLEVE, it stands for Boiling Liquid Expanding Vapor…...
HFO-1234yf is a Category 1 Flammable Gas. The manufacturers SDS(s) all say it, as well as 1910.1200 Appendix B. PLEASE see my article Refrigerant HFO-1234yf is a Flammable “4” in the NFPA 704 Diamond (Part 2) for the breakdown of these facts. With this Cat 1 Flammable Gas comes the hazard of flash fire(s)/explosions. Now…...
Crescent City, Illinois propane explosion occurred in June of 1972 when a freight train with numerous propane cars derailed in the town. The resulting explosion leveled approximately half the town. The water tower in the foreground was over 100 feet tall. In the past, there have been many deaths and injuries to firefighting personnel as…...
This video is BY FAR the most educational training video on BLEVEs. Hats off to Transport Canada. … Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
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While doing some a BLEVE risk assessment I came across this 2007 research paper that I thought was an incredible read. If you are one who works with BLEVE risk this is a MUST READ; if you’re someone who finds BLEVEs interesting and wants to learn the inner workings of a BLEVE, this paper breaks…...
