11. Non-destructive testing. Ultrasonic testing with arrays. Vocabulary. (9th December 2020) 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) ↗
12. Testing concrete in structures. Determination of ultrasonic pulse velocity Part 4, (14th July 2021) 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) ↗
13. Tracked Changes. Testing concrete in structures. Determination of ultrasonic pulse velocity Part 4, (10th February 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) ↗