11. Analysis of surface active agents (raw materials). General methods. Method for determination of mineral sulphate content Part 1.1, (27th February 1987) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (8 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
12. Aromatic natural raw materials. Vocabulary. (19th July 2021) 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) ↗
13. Biotechnology. Large-scale process and production. Control procedures for raw materials. (15th April 1997) 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) ↗
14. BS EN 351-1. Durability of wood and wood-based products. Preservative-treated solid wood. Part 1. Classification of preservative penetration and retention (13th May 2021) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (19 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
15. BS EN 351-1. Durability of wood and wood-based products. Preservative-treated solid wood. Part 1. Classification of preservative penetration and retention (2nd July 2020) 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) ↗
16. BS EN ISO 15528. Paints, varnishes and raw materials for paints and varnishes. Sampling. (23rd September 2019) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (21 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
17. BS EN ISO 21068-1. Chemical analysis of raw materials and refractory products containing silicon carbide, silicon nitride, silicon oxynitride and sialon. Part 1. General information and sample preparation (5th June 2023) 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) ↗
18. BS EN ISO 21068-2. Chemical analysis of raw materials and refractory products containing silicon carbide, silicon nitride, silicon oxynitride and sialon. Part 2. Determination of volatile components, total carbon, free carbon, silicon carbide, total and free silicon, free and surface silica (5th June 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (46 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
19. BS EN ISO 21068-3. Chemical analysis of raw materials and refractory products containing silicon carbide, silicon nitride, silicon oxynitride and sialon. Part 3. Determination of nitrogen, oxygen and metallic and oxidic constituents (5th June 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (31 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
20. BS EN ISO 9235. Aromatic natural raw materials. Vocabulary. (29th July 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (17 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗