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Technical
Download Guidance Note 21 (published January 2018) by clicking the image hereThis an other free Guidance Notes for members are available from the Publications area of this website
Recent posts
About the IOR
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.
News
What we do
23 Apr 2026
Find out what the IOR can do for you: technical queries, safety codes of practice, new technologies and professional development.
News
Join us
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.
News
Tinsley Fund: Open for Applications
20 May 2026
The Tinsley Fund was set up in memory of Mike Tinsley and offers targeted financial help for people facing barriers to entering or progressing in the refrigeration and air conditioning sector.
Education
Do You Know An Oustanding Student or Apprentice?
20 May 2026
The deadline for the RAC and IOR National Student of the Year Cooling Industry Award has been extended to 29 May, which means there’s still time to put forward the exceptional students you know and help them gain the recognition they deserve.
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