ISO 22262-3:2016主要用于定量分析已确定石棉质量分数低于约5%（按重量计）的样品。 ISO 22262-3:2016通过在XRD量化之前使用灰化和/或酸处理的简单程序，扩展了定量分析检测的适用性和极限。 ISO 22262-3:2016适用于ISO 22262-1中确定的含石棉材料。以下是样本矩阵的示例: a） 通过ISO 22262-1中的分析检测到石棉的任何建筑材料； b） 弹性地砖、沥青材料、屋面毡和任何其他材料，其中石棉嵌入有机基质中，并且在使用ISO 22262-1时检测到石棉； c） 使用ISO 22262-1检测到石棉的墙壁和天花板石膏，无论是否含有骨料。 如果基质中含有非石棉状蛇纹石或非石棉状角闪石矿物，则假定为“石棉可能峰”的XRD峰将代表这些矿物。本方法不适用于可能含有石棉的天然矿物或含有此类天然矿物的任何产品。本方法仅适用于含有故意添加的商业级石棉（包括透闪石石棉）的建筑材料样品。 ISO 22262-3:2016适用于熟悉X射线衍射法和参考文献[5]和[6]中规定的其他分析程序的分析员。 ISO 22262本部分无意提供基本分析程序的基本说明。

ISO 22262-3:2016 is primarily intended for quantitative analysis of samples in which asbestos has been identified at estimated mass fractions lower than approximately 5 % by weight. ISO 22262-3:2016 extends the applicability and limit of detection of quantitative analysis by the use of simple procedures of ashing and/or acid treatment prior to XRD quantification. ISO 22262-3:2016 is applicable to the asbestos-containing materials identified in ISO 22262？1. The following are examples of sample matrices: a) any building materials in which asbestos was detected by the analysis in ISO 22262？1; b) resilient floor tiles, asphaltic materials, roofing felts and any other materials in which asbestos is embedded in an organic matrix and in which asbestos was detected when using ISO 22262？1; c) wall and ceiling plasters, with or without aggregate, in which asbestos was detected when using ISO 22262？1. If non-asbestiform serpentine or non-asbestiform amphibole minerals are included in the matrix, the XRD peaks that are assumed to be "possible peaks of asbestos" will represent these minerals. This method is not for application to natural minerals that may contain asbestos or any products that incorporate such natural minerals. This method is intended only for application to building material samples that contain deliberately added commercial grade asbestos including tremolite asbestos. ISO 22262-3:2016 is intended for use by analysts who are familiar with X-ray diffraction methods and the other analytical procedures specified in the References [5] and [6]. It is not the intention of this part of ISO 22262 to provide basic instruction in the fundamental analytical procedures.