I see many contractors still attempting to argue that Pressure Testing and Leak Testing are the same tests. This is incorrect, as I have often discussed in my ramblings on this website. This post breaks down the requirements of the most common “leak test,” called the “bubble test.” ASME B31.3 refers us to ASME BPVC,…...
Leak Testing per ASME Section V, Article 10 – Leak Testing Read More »
This video is an excellent visual of the expansion ratio of Liquified Natural Gas. During a transfer, a ship broke free and stretched the hose until it broke. It was all captured on cellphone video…. Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
LNG Hose Failure during Ship-to-Ship Transfer (Video) Read More »
The respondent was an owner or operator of the ice manufacturing facility where anhydrous ammonia is used in the manufacturing of ice. Anhydrous ammonia, CAS #7664-41-7, has a reportable quantity of 100 pounds, as indicated in 40 C.F.R. Part 355, Appendix A. On July 27, 2023, at or about 4:34 a.m. CDT, a release of…...
6,000 pound NH3 release leads to $169K EPCRA/CERCLA citations Read More »
On February 7, 2017, an employee, 50, was making preparations to replace the relief valve of a 1,000-gallon ammonia (NH3) tank. The incident investigation reported that the tank was empty of liquid NH3. However, it contained approximately 80 psi of vapor pressure. The employee set up a 30-gallon drum that contained water and affixed it…...
Hazards of evacuating NH3 from the process Read More »
On July 14, 2009, Employees #1 and #2 were performing a pneumatic test to verify leak tightness of a new pipeline meter station. The test medium was nitrogen gas, and the system being tested included piping and two (2) pressure vessels. Numerous leaks were found in the system during the test. The system reached the…...
On July 23, 2020, an employee, 30, was looking into a vessel being filled with chemicals, including Isopropyl alcohol, to ensure the level of the mixture was above the blades before turning on the mixers. The access port was mounted with one bolt so the employee could rotate the cover to look in. The employee…...
Filling ungrounded process vessel with Isopropyl Alcohol (Flash Fire) Read More »
In 2025, one would hope we would be beyond these failures. But when the price is more critical than UL/FM approval or even an attempt to comply with Fire Codes and OSHA, we will inevitably end with a chuck of metal rather than a functioning flammable liquids storage cabinet. See if you can spot the…...
Buyer Beware… Not all Flammable Cabinets are created equal! Read More »
MORT was first developed in the USA to analyze the root causes and causal factors for incidents in the nuclear power and aviation industries, but it has now been applied in many industries. However, it seems to be a “lost art” these days! MORT is a pre-populated tree based on a model of an organization’s…...
Management Oversight and Risk Tree (MORT) Read More »
On May 17, 2024, Employee #1 was engaged in cleaning a grain bin when he became engulfed in grain, resulting in… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
PRCS Fatality – Grain Engulfment inside silo Read More »
Looking at the contractor involved with the refinery H2S incident last week, I came across another refinery accident involving H2S where this contractor had their employees exposed. I have no special info on this latest incident, and I will let the media release the name of the contractor, but this 1998 incident was being in…...
1998 H2S incident (same contractor; wrong place-wrong time) Read More »
Hazardous chemicals which are carried on transportation vehicles, including rail cars, can be subject to EPCRA reporting when they are not under active shipping papers and have reached the consignee identified on the shipping papers. See House Report No. 99-962 (Committee of Conference), October 3, 1986. 99 Cong. Conf. H. Report 962, at 311, which…...
When does “storage incident to transportation” end? Read More »
An old dog is never too old to learn something new. NOTE: This clarification was made in the 2021 edition of NFPA 499. In NFPA 499, the definition of a Class II, Div 1 HAZLOC is as follows: (emphasis by me)… Membership Required You must be a member to access this content.View Membership LevelsAlready a...
Group E (Metal Dusts) only have Div 1 locations (NFPA 499) Read More »
