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  • ISO 3137-1974 - 中外标准 - - 1974/12 - 现行
    This part contains a method for taking laboratory samples intended for the determination of the water content and the preparations of the test samples. Contains instructions for handling with the material. Applicable for taking samples of this highly corrosive liquid from road and rail tanks, drums and cylinders. The principle consists in allowing the liquid of one of these containers to flow in a cooled evacuated stainless steel cylinder or cylinders of not less than 1 kg total capacity. The apparatus for sampling is shown in a figure. Part Two deals with the preparation of the test sample by introduction of the liquid into a polyolefin cylinder containing two layers of ice. Has also been approved by the IUPAC.
    抽样方法氟化氢化学分析和试验取样Chemical analysis and testingHydrogen fluorideIndustrialSamplesSamplingSampling methods
  • ISO 3144-1974 - 中外标准 - - 1974/12 - 废止
    Specifies also the determination of density at 20 0C and the measurement of colour in Hazen units. Details the determination of distillation characteristics, residue on evaporation and inorganic sulphur content. Has also been approved by the IUPAC.
  • ISO 2718-1974 - 中外标准 - - 1974/4 - 废止
    Gives detailed notes on the application of the layout. Deals with the titel of the publication, the scope and field of application, describes the details of the subject of the investigation. Specifies the materials, apparatus and characteristics which are to be used. Describes the details of the sample and procedure. Specifies the expression of results particularly those which are to be observed in the test report, and that all hazards are to be grouped. They shall be given under an appropriate heading. The annex contains calculation formulae.
    色谱法规范化学分析化学分析和试验化学试验气相色谱法Chemical analysis and testingChromatographyGas chromatographySpecifications
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