61. BS EN 12693. Refrigerating systems and heat pumps. Safety and environmental requirements. Positive displacement refrigerant compressors. (3rd March 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (83 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
62. Refrigerating systems and heat pumps. Safety and environmental requirements. Definitions, classification and selection criteria Part 1, (5th February 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (60 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗