41. Optics and optical instruments. Contact lenses. Determination of the thickness. Hydrogel contact lenses Part 2, (15th December 1998) 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) ↗
42. Optics and optical instruments. Contact lenses. Determination of the thickness. Rigid contact lenses Part 1, (15th October 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) ↗
43. Plain bearings. Thin-walled half bearings with or without flange. Measurement of wall thickness and flange thickness Part 2, (15th September 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) ↗
44. Plain bearings. Wrapped bushes. Checking the outside diameter Part 5, (13th May 2020) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (24 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
45. Plain bearings: metric series. Checking the outside diameter of wrapped bushes Part 9, (15th July 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (22 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
46. Plastics piping systems. Glass-reinforced thermosetting (GRP) pipes and fittings. Methods for regression analyses and their use. (15th November 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (36 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
47. Powder metallurgical materials and products. Methods of sampling and testing metallic powders. Determination of dimensional changes associated with compacting and sintering, excluding powders for hardmetals Part 2-2.7, (31st December 1984) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (7 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
48. Recommendations for the presentation of plastics design data. Thermal properties. Linear thermal expansion Part 3.1, (15th August 1970) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (10 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
49. Refrigerated display cabinets. Linear dimensions, areas and volumes Part 3, (15th March 1995) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (10 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗
50. Reinforcement products. Woven fabrics. Determination of width and length. (15th February 1998) Authors: British Standards Institution, Record Type: Book Extent: 1 online resource (10 pages) View Content: Available online (eLD content is only available in our Reading Rooms) ↗