Introduction of national standards
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BS 7953:1999 pdf free.Entrance flooring systems — Selection, installation and maintenance. 5.2 Surface materials A wide variety of surface materials can be used separately or in various combinations. These include, bUt are not restzicte(l to: natural fthres Such as wool, cotton, and coir (coconut matting); man-made fibres such as polyaniide (nylon), polypropylene, viscose uuI polyester; and other materials such as […]
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BS ISO 29994:2021 pdf free.Education and learning services – Requirements for distance learning. 4.1 The general information provided by the DLSP shall meet the general requirements as detailed in ISO 29993:2017, Clause 4, except ISO 29993:2017, 4.2 a). 4.2 The DLSP shall provide information on learner support and learning environment. 5 Proposal development 5.1 The proposal development shall meet the […]
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BS 7908:1999 pdf free.Packaging – Temperature and time-temperature indicators- Performance specification and reference testing. 5.1 Temperature response and irreversibility test 5.1.1 Principle of test Temperature indicators can produce an irreversible change if products have become either too hot, or too cold. To simplify this axid clause 6 of the stan(lard, all references will be ma(le to ifl(hcatorS that demonstrate a […]
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BS EN 307:1999 pdf free.Heat exchangers-Guidelines for preparing installation, operating and maintenance instructions required to maintain the performance of each type of heat exchanger. 3.3 Instructions 3.3.1 installation instructions documents describing the basic conditions for correct installation and how the installation is carried out, and giving directions for adjusting control equipment The installation instructions should be such that proper operation […]
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BS ISO 29903-1:2020 pdf free.Comparison of toxic gas data from different tests Part 1:Guidance and requirements. The yields and nature of the fire effluent component from a fire test of any scale are determined by the involved fuels and the prevalent thermal and oxidative conditions in the current stage of the fire. These conditions also determine the burning rate of […]
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BS ISO 23044:2020 pdf free.Guidelines for softening and desalination of industrial wastewater for reuse. Water quality indicators should include TSS, TOC, COD, pH, temperature, TDS, the species and concentrations of ions. The product water from wastewater softening and desalination processes is recommended to be reused for urban non-potable water, environmental water, and as pure or ultrapure water for cooling water, […]
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BS AU 50-1.0.1:1999 pdf free.Tyres and wheels一 Part 1: Tyres- Section 0: General – Subsection 1: Method of test for measuring tyre uniformity. 4.1.1.3 Rotational torque should preferably be applied from the tyre axis; alternatively it may be from the drum axis. There should he provisions for both clockwise and counter clockwise directions of rotation. 4.1.1.4 The equipment shall be […]
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BS EN 207:1999 pdf free.Personal eye-protection一 Filters and eye-protectors against laser radiation (laser eye-protectors). The spectral tnmsmittance for the laser wavelength shall, however, in no case exceed the maximum sIw(lral traii.siiiiltance corresponding to the indicated scale number. 3.7 Resistance of filters and frames to ignition When tested in accordance with 4.7, the filters and frames shall not ignite or continue […]
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BS ISO 23694:2021 pdf free.Wrought magnesium and magnesium alloys一Extruded rods/bars and tubes. 6.1.2.3 IdentificatIon of specimens Each specimen shall be marked in such a manner that, after removal, it is still possible to identify the product from which it was taken, and its location and orientation. If, during the course of subsequent operations, removal of the markings cannot be avoided, […]
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BS Z 100:1999 pdf free.Space systems – Ground support equipment for use at launch, landing, or retrieval sites General requirements. The general design requirements and criteria described in this International Standard are the minimum requirements necessary to meet the needs and expectations of internal customers (e.g. safety, reliability, maintainability. quality, supportability. etc.) in a cost-effective manner. In order to meet […]
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