41. Aircraft. Auto-transformer rectifier units (ATRUs). General requirements. (16th August 2022) 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) ↗
42. Alarm systems. Alarm transmission systems and equipment. Requirements for Supervised Premises Transceiver (SPT) Part 2, (27th July 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (34 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
43. Alarm systems. CCTV surveillance systems for use in security applications. Black and white cameras Part 2-1, (15th April 1998) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (34 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
44. Alarm systems. Environmental test methods Part 5, (15th May 1999) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (20 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
45. 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) ↗
46. Alarm systems. Intrusion and hold-up systems. Opening contacts (magnetic) Part 2-6, (31st May 2014) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (38 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
47. Alarm systems. Intrusion and hold-up systems. Power supplies Part 6, (24th June 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (56 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
48. Alarm systems. Intrusion and hold-up systems. Requirements for combined passive infrared and microwave detectors Part 2-4, (13th August 2020) 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) ↗
49. Alarm systems. Intrusion and hold-up systems. Requirements for combined passive infrared and ultrasonic detectors Part 2-5, (31st May 2014) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (48 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
50. Alarm systems. Intrusion and hold-up systems. Requirements for microwave detectors Part 2-3, (30th March 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (50 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗