21. Air conditioners and heat pumps with electrically driven compressors. Cooling mode. Requirements Part 3, (15th July 1997) 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) ↗
22. Air conditioners and heat pumps with electrically driven compressors. Cooling mode. Testing and requirements for marking Part 2, (15th July 1997) 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) ↗
23. Air conditioners, heat pumps and dehumidifiers with electrically driven compressors. Measurement of airborne noise. Determination of the sound power level. (15th May 1997) 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) ↗
24. Air conditioners, liquid chilling packages, heat pumps and dehumidifiers with electrically driven compressors for space heating and cooling. Measurement of airborne noise. Determination of the sound power level. (31st August 2013) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (30 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
25. Air conditioners, liquid chilling packages, heat pumps, process chillers and dehumidifiers with electrically driven compressors. Determination of the sound power level. Air conditioners, liquid chilling packages, heat pumps for space heating and cooling, dehumidifiers and process chillers Part 1, (12th September 2022) 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) ↗
26. Alarm and electronic security systems. Electronic access control systems. Open Supervised Device Protocol (OSDP) Part 11-5, (24th September 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (92 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
27. Alarm systems. Intrusion and hold-up systems. Alarm verification. Methods and principles Part 9, (31st July 2014) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (32 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
28. Alarm systems. Intrusion and hold-up systems. Application guidelines Part 7, (31st March 2013) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (58 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
29. Alarm systems. Intrusion and hold-up systems. Pyrotechnic Obscuration Security Devices Part 13, (12th May 2020) 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) ↗
30. Alarm systems. Social alarm systems. Application guidelines Part 7, (15th September 1996) 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) ↗