31. Devices without moving parts for the prevention of contamination of water by backflow. Specification for type A air gaps Part 1, (1st May 1992) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (12 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
32. Tracked Changes. Medical electrical equipment. Particular requirements for basic safety and essential performance of an anaesthetic workstation Part 2-13, (22nd July 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (304 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
33. Medical electrical equipment. Particular requirements for basic safety and essential performance of an anaesthetic workstation Part 2-13, (17th June 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (118 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
34. Tracked Changes. Devices to prevent pollution by backflow of potable water. Mechanical disconnector, direct actuated. Family G, type A. (7th February 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (76 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
35. BS EN ISO 22435. Gas cylinders. Cylinder valves with integrated pressure regulators. Specification and type testing. (28th February 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (42 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
36. Devices to prevent pollution by backflow of potable water. Air gap with non-circular overflow (unrestricted). Family A. Type B. (9th March 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
37. Devices to prevent pollution by backflow of potable water. Controllable backflow preventer with reduced pressure zone. Family B. Type A. (9th March 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (36 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
38. Tracked Changes. Devices to prevent pollution by backflow of potable water. Controllable backflow preventer with reduced pressure zone. Family B. Type A. (20th March 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (90 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
39. BS EN 61770 AMD12. Electric appliances connected to the water mains. Avoidance of backsiphonage and failure of hose-sets. (22nd January 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (15 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗