1. BS ISO 817 AMD2. Refrigerants. Designation and safety classification. (9th October 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (9 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Specification for number designation of organic refrigerants. (13th March 1970) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (10 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗