I see many contractors still arguing that Pressure Testing and Leak Testing are the same test. 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 Section V…...
I see this often, a contractor wants to save some $ so they think they can make up their own “bubble-test” solutions. However, not only is this a very bad idea from a QA perspective, it is actually NOT TO CODE, as ASME Section V, MANDATORY APPENDIX I BUBBLE TEST — DIRECT PRESSURE TECHNIQUE, I-1032…...
B31.3 imposes the following requirements, which are only a few of the elements of a leak testing plan:… Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
EPA developed the following key safety measures for the inspection of ammonia refrigeration systems and reviewed them with the International Institute of Ammonia Refrigeration. These are measures that EPA has determined should be in place, regardless of an ammonia refrigeration system’s age or size. This is not intended to be a complete list of important…...
At 11:50 a.m. on October 21, 2021, an employee, 51, was assisting his coworkers in troubleshooting the fresh hydrogen fluoride (HF) system to the vaporizer. The employee was looking at an actuator that was across from a whisping flange when the flange failed, and hydrogen fluoride was sprayed on him. The employee screamed, and his…...
A hydrocarbon leak caused the fire at a California refinery on February 1, 2025. The leak occurred while two workers were opening equipment for maintenance…. Membership Required You must be a member to access this content.View Membership LevelsAlready a member? Log in here...
The Kentucky agency that oversees boiler safety claims the plant operated a vessel that exploded without a proper inspection permit. The Kentucky Department of Housing, Buildings and Construction found that the cooker that exploded was installed without a required permit that would have triggered a state inspection. https://www.wdrb.com/wdrb-investigates/criminal-charges-could-apply-to-inspection-failure-before-fatal-louisville-plant-explosion-official-says/article_704fb426-e566-11ef-a8a2-87af2efe4771.html… Membership Required You must be a member...
B31.3 requires that each piping system be leak-tested to ensure tightness prior to initial operation [¶345.1]. B31 imposes certain restrictions on the types of leak tests which may be used, some general requirements for conducting leak tests, some preparation requirements for leak tests, some specific requirements for each type of leak test, and some record…...
Failures in effective process safety leadership/process safety management can be linked to historical Major Accident Hazard (MAH) events such as Piper Alpha, Buncefield and Texas City amongst others. In 2018, HSE flagged concerns about the offshore industry regarding stagnating safety performance and challenged the industry to respond, leading to the adoption of the Principles of…...
I am always amazed at the lack of a basic understanding of atmospheric pressure and process pressures/vacuums. My Intermediate 3-Day PS course and my Advanced 5-Day PS course have a single slide, and every time, I find I have to spend an hour explaining to the class what PSIG is and how it’s different from…...
High-hazard Group H occupancies are characterized by a greater degree of explosion, fire, or health hazard than typical commercial and industrial uses. There is one common feature of Group H occupancies: they are designated as Group H because they contain excessive quantities of hazardous materials. Where the quantities of hazardous material stored or used in…...
As we have discussed before, energy isolation in a process is VERY DIFFERENT than energy isolation in a manufacturing plant. And the work we do as part of achieving a Zero Energy State (ZES) is the evacuation of hazardous energy. And man, have I seen some hockey setups to evacuate serious hazardous materials! Here is…...
