1. Rules for the preparation of detail specifications for indicator tubes of assessed quality. (17th December 1970) 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) ↗
2. Specification for counter and indicator tubes of assessed quality: generic data and methods of test. (22nd July 1974) 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) ↗