BOYLES LAW: When the temperature is kept constant, the volume of a gas is inversely proportional to the pressure upon it. CHARLES LAW: When the external pressure is kept constant, the volume of a gas is directly proportional to its absolute temperature…. Membership Required You must be a member to access this content.View Membership LevelsAlready...
BASIC & COMBINED GAS LAWS Read More »
Every day of the year, billions of cubic feet of gas are stored, transported, and used without any problems or mishaps. This results from a conscientious, solid – effort toward safety within the gas industry. Even with this effort, from time to time, something goes wrong; either mechanical or human error occurs. When this happens,…...
I got this document when I attended a National Fire Academy HAZMAT course in 1993. I came across it when looking for some old HAZMAT material for a new course I am developing and translated and cleaned up some of the language. It does an EXCELLENT job explaining the phenomenon we know as BLEVE (Boiling…...
BLEVE: CAUSE & EFFECTS (NFA) Read More »
This picture has caused quite the debate in the SAFTENG circle! Many comments in the SAFTENG LI and FB groups point towards the worker(s), which indicates the belief that this is an “Active Failure” of the worker(s) involved. Many of you would NOT believe the tales I could tell about what I have encountered in…...
Most LOTO failures are Latent Organizational Failures – NOT Active Failures Read More »
OSHA states the following about our non-entry rescue devices… The mechanical device used for emergency rescue must be designed and rated for human use. The standard specifies in paragraph 1910.146(k)(3)(ii) that the retrieval equipment must be designed for personnel. The performance-oriented nature of the standard allows flexibility as to the design specifications of the retrieval…...
Non-Entry rescue mechanical device Read More »
This is a reminder that if your ERP or Environmental Management System (EMS) has not been updated to reflect these “NEWER” CSB reporting requirements, the facility should consider updating these programs/processes and including the reporting requirements in EHS training. Also, line 9.8 of your RMP should list 40 CFR 1604 – Accidental Release Reporting. The…...
CSB’s Accidental Release Reporting (40 CFR 1604) Read More »
This is just an FYI to my Cl2 clients. Although the changes are NOT significant (0.1 – 0.3 miles), they are indeed changes to the Downwind Protective Action Distances. If you have used the 2020 ERG Distances in your Pre-Plans, which you or I did for your Emergency Response Plan (ERP), it may be beneficial…...
Changes to Chlorine – 2024 ERG Table 3 Read More »
This is just an FYI to my NH3 clients. Although the changes are NOT significant (0.1 – 0.2 miles), they are indeed changes to the Downwind Protective Action Distances. If you have used the 2020 ERG Distances in your Pre-Plans that you or I did for your Emergency Response Plan (ERP), it may be beneficial…...
Changes to Anhydrous Ammonia – 2024 ERG Table 3 Read More »
One of the many changes to the 2024 ERG, includes considerations for lithium battery and electric vehicle (EV) fires fire control. NOTE: the print editions are NOT yet available, but we can download the app (CLICK HERE) Water spray cools batteries and helps suppress and slow the release of toxic gases but does not…...
The Respondent formerly operated an ammonia refrigeration process at a distribution center and warehouse, which maintained a maximum inventory of the regulated toxic substance anhydrous ammonia at the Facility, which exceeds the threshold quantity of 10,000 pounds of anhydrous ammonia as set forth in Table 1 at 40 C.F.R. § 68.130 and, therefore, has had…...
EPA RMP citations @ refrigerated distribution center and warehouse (NH3 & $161K) Read More »
Are “safety cans” created equally? Nope, and which UL standard they meet will dictate how much “safety they provide.” OSHA’s 1910.106 defines a “safety can” as Safety can shall mean an approved container, of not more than 5 gallons capacity, having a spring-closing lid and spout cover and so designed that it will safely relieve…...
Safety Cans… did you know? Read More »
A Y-shaped strainer (filter) in a three-inch pipe ruptured. The failure occurred after pressure cycles induced by thermal expansion. The released isobutylene resulted in a gas cloud explosion and the company’s bankruptcy. Aspects: When a closed system filled with a liquid hydrocarbon raises the temperature, the pressure can rise above the design. Here, a brittle…...
The critical role a Hydrostatic RVs can play Read More »
