41. Tracked Changes. Non-destructive testing of welds. Acceptance levels for radiographic testing. Steel, nickel, titanium and their alloys Part 1, (12th January 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (52 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
42. Tracked Changes. Specification and qualification of welding procedures for metallic materials. Welding procedure test. Upset (resistance butt) and flash welding Part 13, (26th May 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (64 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
43. Wood preservatives. Determination of the toxic values against larvae of Hylotrupes bajulus (Linnaeus) (laboratory method). (28th April 1989) 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) ↗