本技术规范规定了测定低于MW1000的聚合物添加剂的质量分数的测试方法。该方法适用于聚合物添加剂本身，即以可用形式供应，然后再配制成塑料。该方法也适用于从成品塑料材料和制品中提取的聚合物添加剂，只要采取预防措施确保没有来自任何其他来自塑料的共萃取物的干扰

This Technical Specification specifies a test method to determine the mass fraction of a polymeric additive that falls below a MW of 1000. The method is applicable to polymeric additives per se - i.e. supplied in their usable form, before formulation into a plastic. The method is also applicable to polymeric additives extracted from finished plastic materials and articles, provided that precautions are taken to ensure the absence of any interference from any other co-extractives derived from the plastic.