1.1本试验方法包括测定无碳复写纸的卷曲度，即当暴露在不同湿度条件下时，这些纸的弯曲度。 1.2本试验方法可用于制造控制、开发和研究。 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====== 本试验方法旨在测量无碳复写纸相对于支撑样品的平面的卷曲量。该测试可作为质量控制方法和预测现场性能。

1.1 This test method covers the determination of the curl of carbonless copy papers, that is, the degree of curvature of a sheet of these papers when exposed to varying conditions of humidity. 1.2 This test method may be used for manufacturing control, development, and research. 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 ====== This test method is intended to measure the amount of curl of a carbonless copy paper sheet relative to the flat surface supporting the sample. The test is useful as a quality control method and for predicting field performance.