ISO 19595:2017规定了通过加工天然材料和混凝土用骨料混合物获得的骨料的性能和要求。根据ISO 22965（所有部分），适用于烘干颗粒密度大于2,00 Mg/m3（2000 kg/m3）的骨料。 ISO 19595:2017纳入了一项一般要求，即天然骨料释放的有害物质不得超过材料规定的最大允许水平或使用地国家法规中允许的最大允许水平。 国家规定（最好在国家附件或项目规范中给出）可以规定附加或偏离要求。 注:ISO 22965（所有部分）规定了混凝土中骨料的最终用途要求。

ISO 19595:2017 specifies the properties and requirements of aggregates obtained by processing natural materials and mixtures of these aggregates for use in concrete. It is applicable to aggregates with an oven-dried particle density greater than 2,00 Mg/m3 (2 000 kg/m3) in accordance with ISO 22965 (all parts). ISO 19595:2017 incorporates a general requirement that natural aggregates are not intended to release any harmful substances in excess of the maximum permitted levels specified for the material or permitted in the national regulations of the place in use. National provisions, preferably given in a national annex or a project specification, can specify additional or deviating requirements. NOTE Requirements for the end use of aggregates in concrete are specified in ISO 22965 (all parts).