GB/T 21792-2008 in English

《GB/T 21792-2008闪燃和非闪燃测定 闭杯平衡法》由TC251（全国危险化学品管理标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准为首次发布。本标准规定了一种方法，当维持在一个选定的平衡温度并且处于测试条件之下时，其用于测定色漆、清漆、色漆基料、溶剂、石油及其相关产品是否能挥发出足够多的易燃蒸汽，通过应用外部点火源以标准方式操作时，能引起点火。本标准不适用于水性涂料。 　本标准等同采用ＩＳＯ１５１６：２００２《闪燃和非闪燃测定　闭杯平衡法》（英文版）。

Scope

This standard specifies a method for determining whether paints, varnishes, paint bases, solvents, petroleum and their related products are capable of volatilization when maintained at a selected equilibrium temperature and under test conditions. Sufficient flammable vapors are capable of causing ignition when operated in the standard manner by application of an external ignition source. This standard does not apply to water-based coatings, but such products can be tested using GB/T 21790 "Flash and non-flash determination" (reference [2]). The applicable temperature range of this standard is -30℃～110℃, and the temperature range has been listed in Table 1 according to the different instruments used. When this method is used to test mixtures containing halogenated short solvents, abnormal results may be given, and the results should be interpreted with caution.