1.1本试验方法涵盖了某些碱溶性树脂中游离酸度的测量。 1.2本试验方法不适用于苯乙烯-马来酸酐树脂。 1.3树脂制造商应说明本试验方法是否可用于其产品。 1.4本标准无意解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This test method covers the measurement of the free acidity present in certain alkali-soluble resins. 1.2 This test method is not suitable for styrene-maleic anhydride resins. 1.3 The resin manufacturer should specify whether or not this test method may be used for his product(s). 1.4 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.