1.1 本试验方法涵盖可能暴露于液体化学品的任何表面的试验。 1.2 本试验方法不适用于浸入试验条件或材料边缘侵蚀。 1.3 该测试方法旨在评估视觉变化。在某些情况下，可能会发生物理（非视觉）变化，功能测试可能是合适的。 1.4 以英寸-磅为单位的数值应视为标准值。括号中给出的值是到国际单位制的数学转换，仅供参考，不被视为标准值。 1.5 本标准并非旨在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。 ====意义和用途====== 3.1 选择的特定化学品由客户和供应商决定。 3.2 由于化学蒸发速率不同，结果可能会有所不同。 使用边缘密封的手表玻璃旨在减少或消除化学品的蒸发。

1.1 This test method covers the testing of any surface that may be exposed to liquid chemical(s). 1.2 This test method is not designed for immersion testing conditions or material edge attack. 1.3 This test method is designed for evaluation of visual changes. In certain instances physical (non-visual) changes may occur and functional testing may be appropriate. 1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.5 This standard does not purport to address all of the safety concerns, 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. ====== Significance And Use ====== 3.1 The specific chemical(s) selected is at the discretion of the customer and vendor. 3.2 Variations in results may be expected due to different rates of chemical evaporation. The use of a watchglass with sealed edges is intended to curtail or eliminate evaporation of the chemical.