551. Copper and copper alloys. Copper cathodes. (15th August 1998) 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) ↗
552. Specification for sulphur hexafluoride for electrical equipment. (30th September 1975) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (26 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
553. Specification for electric lamps for railway signalling. (23rd December 1960) 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) ↗
554. BS EN ISO 23611-5. Soil quality. Sampling of soil invertebrates. Part 5. Sampling and extraction of soil macro-invertebrates (24th May 2023) 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) ↗
555. Optical fibre cables. Indoor cables. Detail specification for multi-simplex breakout optical cables for use in terminated breakout cable assemblies Part 2-22, (24th May 2023) 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) ↗
556. Conformity assessment. General requirements for the competence of proficiency testing providers. (24th May 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (48 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
557. BS EN ISO 23611-2. Soil quality. Sampling of soil invertebrates. Part 2. Sampling and extraction of micro-arthropods (Collembola and Acarina) (24th May 2023) 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) ↗
558. BS ISO 16000-33. Indoor air. Part 33. Determination of phthalates with gas chromatography/mass spectrometry (GC/ MS) (1st June 2023) 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) ↗
559. Optical fibre cables. Generic specification. Basic optical cable test procedures. Ribbon dimensions. Aperture gauge, method G3 Part 1-303, (31st May 2023) 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) ↗
560. Tracked Changes. Principles for selecting and using test persons for testing anthropometric aspects of industrial products and designs. (1st June 2023) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (48 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗