Split TXV

Technical Safety BC released an investigation of a split thermostatic expansion valve. As a result of scheduled maintenance on a liquid ammonia line, ammonia was trapped within an isolated piping line on the downstream side on the thermal expansion valve under Read more

EPA Rescinds Some of the New Law!

RMP Reconsideration Final Rule On November 20, 2019, EPA Administrator Andrew Wheeler signed the Risk Management Program (RMP) Reconsideration final rule, which modifies and improves the existing 40CFR68. The changes are intended to promote better emergency planning and public information about Read more

Trapped Liquid NH3?

Ammonia when in liquid form is confined (trapped) and heat is applied to the chemical it will build pressures at least 100 PSI per degree of F exposure, thus creating hydraulic pressure.  Relief protection can stop the hazard, unfortunately it Read more

Are Online Training Programs Acceptable?

The following is the interpretation from OSHA.  There are interpretation letters back to 1994 and now this one from 2019 in regards to similar questions. Are online training programs acceptable compliance with OSHA’s training requirements. Question 1: Are online training programs acceptable Read more

Line Break / Line Opening

If you were not at the National Ammonia Safety Day this summer you missed the best year yet.  Michael Schram of the P1 Group presented on considerations of line breaks involving ammonia refrigeration systems.  At this Link you can view Read more

IIAR 2: Addendum A

The new and improved IIAR 2-2014 is the definitive design safety standard of the ammonia refrigeration industry. A major focus of changes made to IIAR 2-2014 had been incorporating topics traditionally addressed in other codes and standards so that IIAR Read more

EPA’s National Compliance Initiative

The EPA focuses its enforcement and compliance resources on the most serious environmental violations by developing and implementing national program priorities, previously called National Enforcement Initiatives (NEIs). As part of the EPA’s ongoing efforts to increase the environmental law compliance Read more