: Guidance on welding, piping hangers, supports, and managing thermal expansion/contraction.
Before diving into the Piping Handbook, it is crucial to understand the authority behind it. The is a non-profit trade association dedicated to the safe use of ammonia as a refrigerant. Their standards (e.g., IIAR 2, IIAR 3, IIAR 4, and IIAR 5) are recognized globally by OSHA (Occupational Safety and Health Administration) and building codes as the benchmark for safe system design. iiar ammonia refrigeration piping handbook pdf link
While the IIAR sells the current printed edition, they historically provide the foundational PDF documents for industry use. : Guidance on welding, piping hangers, supports, and