Introduction of national standards
BS 7843-3.1:1999 pdf free.The acquisition and management of meteorological precipitation data一 Part 3: Specification for raingauges – Section 3.1: Storage raingauges. Construction of the components of this type of gauge shall be in accordance with the dimensions specified in Figures6, 7, 8, 9 and 10. The outer can (Figure 7) shall be made either from 127 mm x 1.2 mm […]
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BS 7799-2:1999 pdf free.Information security management- Part 2: Specification for information security management systems. 3.1 General The orgaiiization shall establish and maintain a documented ISMS. This shall a(klress the assets to 1w prot (Cte(l, the organization’s approach to risk management, the control objectives and controls, and the degree of assurance required. 3.2 Establishing a management framework The following steps shall […]
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BS EN 1287:1999 pdf free.Sanitary tapware – Low pressure thermostatic mixing valves一General technical specifications. For the purpose of this standard the following definition applies. 3.1low pressure thermostatic mixing valve a valve, with one or more outlets, which mixes hot and cold water and automatically controls the mixed water to a user selected temperature. The flow rate between no flow and […]
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BS 7917:1999 pdf free.Elastomer insulated fire resistant (limited circuit integrity) cables for fixed wiring in ships and on mobile and fixed offshore units – Requirements and test methods. 6.10.1 Material The outer sheath shall conform to 5.5. 6.10.2 Thickness of outer sheath The thickness of the outer sheath, when determined by taking the average of a number of measurements in […]
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BS 7423:1999 pdf free.Specification for safety requirements for children’s travel cots of internal base length not less than 900 mm. 6.6 When tested in accordaiwe with annex I) the folding cot shall not fold and the locking mechanism shall either: a) require at least two consecutive actions to release the mechanisms. the first reqLlirng a release of not less than […]
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BS 7870 4.10:1999 pdf free.LV and MV polymeric insulated cables for use by distribution and generation utilities一 Part 4: Specification for distribution cables with extruded insul ation for rated voltages of 11 kV and 33 kV一 Section 4.10: Single-core 11 kV and 33 kV cables (Implementation of HD 620). The insulation shall be XLPE or EPH conforming to the requirements […]
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BS 3424-13:1999 pdf free.Testing coated fabrics 一 Part 13: Guide to the selection of methods for colour fastness to light testing. Irradiance is defined as the amount of radiation energy incident upon a square metre of material. It is dependent Upon the spectrum of the emitted radiation, the intensity of the radiation, the distance of the test spednien front the […]
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BS 4072:1999 pdf free.Copper/chromium/arsenic preparations for wood preservation. This standard specifies requirements for two types of waterborne preservatives containing mixtures of compounds of copper (II), chromium (VI) and (i) for applicat ion to timber to 1)rotet it against attack in serice by wood-destroying organisms. NOTE I Teat methnd.s are given in annex A and annex H and giddanee on methods […]
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BS 4261:1999 pdf free.Wood preservation — Vocabul ary. lire cycle the various stages through which an organism passes in going from one generation to the same development point in the next generation NOTE 1 Adaped from RSEN844-l1:19t8. 11.4 NOTE 2 Typically for wood•bormg beet lea this includes the egg, larva, pupa and adult The time laken for this cycle to […]
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BS 6440:1999 pdf free.Powered lifting platforms for use by disabled persons一Code of practice. 7.4. 1 .4 Idowrr frtv’l pro fret ion There are no recommendations for doors or enclosures at the lower level. 7.4.1.5 Intermediate ieee? profretwn An imperforate partial enclosure should be provided at all intermediate levels. This shoul(l extend the full width or length of the platform, and […]
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