Safety Info Posts

This study essentially concerns refrigeration installations using ammonia as a refrigerant.  However, to better understand and to place the risks associated with these installations in perspective, quantified information has also been collected on numerous accidents, both French or foreign, in other industrial or agricultural activities and the field of transport. The processing of these data allows some comparisons to…...

A chemical plant for the production of fertilizer was built in 1969 and located over 7 miles from the town of Jonova which had a population of 40,000. The plant employed 5,000 people and was positioned inside a military zone with controlled access.  The ammonia tank involved in the accident was a cryogenic storage vessel with a capacity…...

Recently we came across a project where questions arose concerning the welders on the job. The Welding Procedure Specification (WPS) was well written and listed the welders who would be making the welds on the piping being installed. But when asked to see the welders “certification records,” those records were older than six (6) months…....

There may come a day when one of our pressure relief valves will need some type of work done on it and when that day comes we need to ensure the contractor/shop doing the work holds an “VR Stamp” from The National Board of Boiler and Pressure Vessel Inspectors.  The “VR” stands for “valve repair” and…...

There may come a day when one of our pressure vessels will need some work done on it, and when that day comes, we need to ensure the contractor doing the work holds an “R Stamp” from The National Board of Boiler and Pressure Vessel Inspectors.  The “R” stands for “repair” and anyone who makes…...

The National Board Inspection Code (NBIC) is issued every two years and this year’s edition (2017) is now organized into four (4) parts. It is developed to maintain the integrity of pressure-retaining items by providing rules for installation (Part 1), and after the items have been placed into service, by providing standards for inspection (Part…...