Hazardous Materials: Flame Arrestors (USFA)
CLICK HERE for the pdf… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
Hazardous Materials: Flame Arrestors (USFA) Read More »
Does OSHA regulate electrical equipment in areas where flammable liquids are present but are not hazardous locations?
Yes, OSHA has rules for the use of flammable liquids in areas that are not designed as a Hazardous Location. OSHA covers Hazardous Locations in 1910.307, but those areas that do not rise to the level of being a Hazardous Location fall under 1910.334(d) which states:… Membership Required You must be a member to access...
Another “weak roof-to-shell seam” failure and results
This is an excellent photo that shows what happens when a FLAMMABLE LIQUIDS ATMOPSHERIC STORAGE tank does not have proper or adequate emergency venting. As we can see in this photo (Source: AP) the tank is still in tank, but with a large hole (e.g. new vent!). This tank was estimated to have reached the…...
Another “weak roof-to-shell seam” failure and results Read More »
Good video explaining how static is created and why it is worse in winter (video)
… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
Good video explaining how static is created and why it is worse in winter (video) Read More »
How a “weak roof-to-shell seam” works on an atmospheric storage tank
OSHA, as well as NFPA and IFC, permit a “weak roof-to-shell seam” as the means for emergency venting on an OUTSIDE ABOVE GROUND ATMOSPHERIC storage tank for flammable liquids. This method was vey common in the early days, but has since been replaced with engineered fire vents. This video does an excellent job demonstrating how…...
How a “weak roof-to-shell seam” works on an atmospheric storage tank Read More »
Flammable Liquid Tanks on “Legs”
Over the past year or so we have come across several situations where facilities have replaced their flammable liquid storage tanks, which some are used as a “waste tank”. These “waste tanks” fall under EPA’s RCRA rule and apparently these tanks have to be “fully inspected” on a set frequency and when tanks sit directly…...
Flammable Liquid Tanks on “Legs” Read More »
Controlling flow rates of non-conductive flammable liquids
In the world of process safety, we have Safe Upper and Lower limits on a lot of common process parameters, such as pressures, levels, temperatures, etc. Flows on the other hand are quite often overlooked as a critical process parameter and when your HHC/EHS is a non-conductive flammable liquid both FLOW and LEVEL must be…...
Controlling flow rates of non-conductive flammable liquids Read More »
FLASH FIRE on top of “rig tank” (i.e. frac tank)
A crew was conducting well kill operations on a sweet oil well. A worker was monitoring the return flow to the service rig trough from on top of the rig tank. When the returns became gassier, the return flow was opened to the degasser section of the rig tank and the trough flow was pinched…...
FLASH FIRE on top of “rig tank” (i.e. frac tank) Read More »
Cheat Sheet for Classifying Flammable Liquids under the new GHS (NC-OSHA)
… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
Cheat Sheet for Classifying Flammable Liquids under the new GHS (NC-OSHA) Read More »
Petroleum and Gas Safety Alert 66 – Safe LPG decanting procedures and static electricity
Liquified Petroleum Gas (LPG) cylinders are being filled by decanting equipment. These cylinders can be for commercial use (e.g. forklift trucks) or for domestic use (e.g. cook tops, barbecues, and camping). It is critical that all decanting operations are carried out in a suitable and safe manner. What happened? A fire broke out at a…...
Petroleum and Gas Safety Alert 66 – Safe LPG decanting procedures and static electricity Read More »
“Dropping trailers” of flammable liquids
Have you ever seen several full tanker trailers parked without their mode of transport under them or a railcar with the Class 3 Flammable placard hooked up to the process and being used as a storage tank? Although OSHA’s 1910.106 makes no specific prohibition against this practice, I would like to point out that the…...
“Dropping trailers” of flammable liquids Read More »
Enform Safety Alert – Worker Burned In PLASTIC DOUBLE WALLED Methanol Tank Explosion Injury Incident
Description of Incident: An operator was checking the level in a 500 gallon methanol storage tank: Tank was polyethylene plastic, double wall A worker climbed on top of the tank. Flammable vapour was ignited, when the worker touched the cap on the inner tank, resulting in an explosion and flash fire. The worker received first aid…...