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Technical
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.
- Non Flammable, Lower Toxicity Refrigerants Group A1
- Flammable Lower Toxicity Refrigerants Group A2L, A2 and A3
- Carbon Dioxide R744
- Ammonia R717
Download or purchase the Code here
Recent posts
Review on EU Energy Label
18 Dec 2025
The European Commission is reviewing the energy label and ecodesign regulations for commercial refrigeration to assess how these Regulations have performed and to identify potential improvements.
News
New IOR Education Outreach Manager
11 Dec 2025
The IOR is pleased to announce the appointment of Matt Harvey as its new Education Outreach Manager to lead education outreach initiatives with schools, vocational colleges, and employers.
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GB F Gas consultation - IOR response
11 Dec 2025
The consultation will shape future refrigerant use for our sector. Take part in this consultation to make the views of the RACHP industry heard.Â
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Review of 2025 with the IOR
1 Dec 2025
Check our social media feeds on LinkedIn and Facebook to find out what we've been up to and what you can look forward to in 2026.
News
F Gas Phasedown Reform Consultation - Recording Available
11 Nov 2025
The recording of the webinar featuring DEFRA and industry experts discussing the impacts and opportunities for the RACHP industry following the launch of the UK Government’s consultation on reforming the HFC phasedown under the GB F Gas Regulation is now available.
RecordingSitemap
