51. Technical drawings. Requirements for microcopying. (15th October 1999) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (14 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
52. The safety and performance of domestic electrical appliances. (15th December 1982) 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) ↗
53. Tracked Changes. Freight containers. Coding, identification and marking. (4th July 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (86 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
54. Tracked Changes. LPG equipment and accessories. Cylinder and drum marking. (24th February 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (40 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗