Gn21image Download Guidance Note 21 (published January 2018) by clicking the image here

 This an other free Guidance Notes for members are available from the Publications area of this website 

 

Recent posts

IOR RACHP EngTech Section Launches New Technician App

10 Jul 2025

The IOR’s RACHP EngTech Section is proud to announce the launch of an innovative mobile technician’s app, now available on the Apple App Store and Google Play Store.

News

IOR Masterclasses Recording Available

9 Jul 2025

From intermediate PH diagrams to coldroom sizing and equipment selection, the library of IOR Masterclasses keeps growing! Watch the recordings anytime, anywhere on the IOR webinar channel.

Recording

Apply to Join the IOR Board of Trustees

9 Jul 2025

Make sure you get your application form in by 1st August to stand for the IOR’s Trustees Elections held in the autumn.

News

Call for Members’ Input for Consultation on EN378

8 Jul 2025

The revised EN378 standard is now open for public consultation until 26 August 2025.

Consultation

Refrigeration Lego Kit Shortlisted for Award

5 Jul 2025

We are delighted to announce that the IOR Refrigeration Lego Kit has been shortlisted in the Campaign of the Year Category at the Cooling Awards.

News