7 Mar 2018
The IOR Safety Code of Practice for Non Flammable, Lower Toxicity Refrigerants (Group A1) has been updated by the IOR as a reference source and guide to interpretation of the latest standards and regulations.
The publication provides essential industry guidance for owners, designers, installers and operators of vapour compression refrigerating systems that use any
group A1 refrigerants which include HFC and HFC blends. It covers properties of refrigerants, decommissioning, testing and maintenance as well as design issues with useful appendices such as typical schedules for inspection and maintenance, system register details, machinery rooms, definitions and an updated list of relevant standards. The Code has been prepared by the IOR Technical Committee as a reference source and guide to interpretation of current safety standards such as BS EN378:2016 and legal requirements such as F Gas, PED, PSSR.
The IOR publishes four Safety Codes of Practice specific to refrigerant type - all available free to IOR members.
The remaining Codes are under revision and are due to be reissued in April 2018.
Download or purchase the Code here
23 Apr 2026
The Institute of Refrigeration is the professional engineering body for all individuals working in RACHP. Find out more about the IOR here.
23 Apr 2026
Find out what the IOR can do for you: technical queries, safety codes of practice, new technologies and professional development.
23 Apr 2026
When you become a member of the Institute of Refrigeration you are joining a group of specialist experts driving the sector forward.
16 Jun 2026
The Call for Abstracts for the 2nd IIR International Conference on Refrigeration Adapting to Rising Temperatures (Adaptation 2027) is now open.
16 Jun 2026
This Call for Evidence is an important opportunity for members to directly influence the future of apprenticeships and skills policy across the UK.