391. Optics and optical instruments. Contact lenses. Specification for rigid corneal and scleral contact lenses Part 1, (31st January 1992) 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) ↗
392. Products and systems for the protection and repair of concrete structures. Definitions, requirements, quality control andevaluation of conformity. General principles for the use of products and systems Part 9, (15th December 1997) 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) ↗
393. Female condoms. Requirements and test methods. (2nd April 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (66 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
394. Statistical methods for implementation of Six Sigma. Selected illustration of analysis of variance. (16th October 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (66 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
395. BS EN 14427. LPG equipment and accessories. Transportable refillable composite cylinders for LPG. Design and construction. (22nd October 2020) 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) ↗
396. BS EN 62496-4-3 Ed.1.0. Optical circuit boards. Part 4-3. Interface standards. Terminated waveguide OCB assembly using a single-row thirty-two-channel PMT connector intermateable with 250 μm pitch MPO 16 (16th November 2020) 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) ↗
397. Additive manufacturing. Non-destructive testing for use in directed energy deposition. Guide. (30th November 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (42 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
398. Railway applications. Rail defects. Rail defect management Part 1, (30th November 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (72 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
399. BS ISO 9286. Abrasive grains and crude. Chemical analysis of silicon carbide. (24th November 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (28 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
400. Magnetic powder cores. Guidelines on dimensions and the limits of surface irregularities. Cylinder-cores Part 5, (23rd June 2022) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (16 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗