The OSHA Ammonia Refrigeration eTool acknowledges the handbook as a key industry reference for safe practices.
To help professionals master the handbook, IIAR offers the "Piping Handbook Chapter 1 Certificate Course." This is a self-paced online course designed to teach ammonia pipe sizing using pressure drop principles and mass flow. Participants work through practical examples directly from Chapter 1 of the handbook, bridging the gap between reading the text and applying it in the field. Additionally, IIAR frequently offers deep-dive training sessions at its annual conference, where experts explain the software and engineering methods presented in the handbook. iiar ammonia refrigeration piping handbook pdf link
If the Piping Handbook is the "how-to," is the "shall-do." This is the leading standard for the design of safe closed-circuit ammonia refrigeration systems. It provides the mandatory requirements for equipment design and installation. Model code bodies like the International Mechanical Code (IMC) and the International Fire Code (IFC) often defer to IIAR 2 for regulating ammonia systems. This standard includes Appendix Q on identification of ammonia refrigeration piping, as well as requirements for piping supports, hangers, and seismic restraints. Model code bodies like the International Mechanical Code
Best practices for welding, pipe hangers, and supports to prevent leaks and structural failures. iiar ammonia refrigeration piping handbook pdf link