空气质量.散装物料.第1部分:商业用石棉散装材料的定量测定和取样

[中文适用范围]： 本部分ISO 22262规定了散装材料的取样方法和商业散装材料中石棉的识别方法。本部分ISO 22262规定了适当的样品制备程序，并详细描述了通过偏光显微镜和色散染色识别石棉的程序。本部分ISO 22262还规定了从基质材料（如沥青、水泥和塑料制品）中分离石棉纤维的简单程序。可选地，可以使用扫描电子显微镜或透射电子显微镜与能量色散X射线分析进行石棉识别。还提供了关于常见分析问题、干扰以及分析中可能遇到的其他类型纤维的信息。本部分ISO 22262适用于特定类型制造的含石棉产品和商业矿物中石棉的定性识别。本部分ISO 22262适用于防火材料、隔热材料和其他制造产品或矿物的分析，其中石棉纤维可以容易地从基质材料中分离以进行识别。 [外文原描述]： This part of ISO 22262 specifies methods for sampling bulk materials and identification of asbestos in commercial bulk materials. This part of ISO 22262 specifies appropriate sample preparation procedures and describes in detail the procedure for identification of asbestos by polarized light microscopy and dispersion staining. This part of ISO 22262 also specifies simple procedures for separation of asbestos fibres from matrix materials such as asphalt, cement, and plastics products. Optionally, identification of asbestos can be carried out using scanning electron microscopy or transmission electron microscopy with energy dispersive X-ray analysis. Information is also provided on common analytical problems, interferences and other types of fibre that may be encountered in the analysis. This part of ISO 22262 is applicable to qualitative identification of asbestos in specific types of manufactured asbestos-containing products and commercial minerals. This part of ISO 22262 is applicable to the analysis of fireproofing, thermal insulation, and other manufactured products or minerals in which asbestos fibres can readily be separated from matrix materials for identification. NOTE This part of ISO 22262 is intended for use by microscopists who are familiar with polarized light microscopy methods and the other analytical procedures specified (References [16]?[19]). It is not the intention of this part of ISO 22262 to provide instruction in the fundamental analytical techniques.