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.
23 Jul 2026
The next IOR Industry Skills Alliance in-person meeting will be held in London on 24th September. Join us to help us progress in our key areas, which include strengthening apprenticeship and T Level pathways, shaping qualification design, expanding STEM and early engagement activity, and increasing the number of young people entering the profession.
22 Jul 2026
Andrea Voigt has been announced as a keynote speaker for the 2026 IRC Business Briefing, Securing the Future of RACHP in a Volatile Electricity Market. Her presentation will examine the true cost of maintaining an energy system amid the commercial risks of rising electricity volatility, while also highlighting the opportunities created through early adaptation and investment.