本文件规定了一系列塑料灰分测定的一般方法和合适的试验条件。所选的特殊条件可包含在相关塑料材料的规范中。 ISO 3451-2、ISO 3451-3、ISO 3451-4和ISO 3451-5规定了适用于聚对苯二甲酸乙二醇酯材料、未增塑醋酸纤维素、聚酰胺和聚氯乙烯塑料（包括一些特定填充、玻璃纤维增强和阻燃材料）的特殊条件。

This document specifies general methods, with suitable test conditions, for the determination of the ash of a range of plastics. The particular conditions chosen can be included in the specifications for the plastic material in question. Particular conditions applicable to poly(alkylene terephthalate) materials, unplasticized cellulose acetate, polyamides and poly(vinyl chloride) plastics, including some specific filled, glass-fibre-reinforced and flame-retarded materials, are specified in ISO 3451-2, ISO 3451-3, ISO 3451-4 and ISO 3451-5.