1. BS EN 15502-2-3. Gas-fired central heating boilers. Part 2-3. Specific standard for hybrid space heating appliances combining a gas fired appliances and heat pump in a product (28th June 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (44 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
2. Detail specification for radio frequency coaxial connectors (series SMA). 50 ohms, unsealed, soldered, centre contact, clamp outer for flexible cables, solder outer for semi-rigid cables. Parameters. Full assessment level Part 3, (15th December 1985) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (70 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
3. Respiratory protective devices: threads for facepieces. Centre thread connection Part 2, (15th July 1999) 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) ↗
4. Specification for lifting twistlocks. (31st October 1985) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (18 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
5. Respiratory protective devices: threads for facepieces. Specification for centre thread connection Part 2, (28th September 1990) 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) ↗
6. Pedestal plain bearings. Specification for centre flange bearings Part 3, (15th July 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
7. Specification for measurement microphones. Primary method for free-field calibration of laboratory standard microphones by the reciprocity technique Part 3, (15th July 1996) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
8. Gas-fired central heating boilers. Specific standard for hybrid units combining a gas-fired boiler and an electrical heat pump in a product Part 2-3, (26th September 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (46 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗