意义及用途
5.1 许多建筑涂料, 特别是白色和浅色涂料, change significantly in film opacity as they dry. Increased coverage is sometimes associated with porosity and poor film integrity in conventional formulations. The reduction can lead to disappointing paint jobs. 所以, the change in covering power from wet to dry is a property of great practical significance.

5.2 This test method can be used for paint specifications and as a brief procedure for assessment and quality control.

ASTM D5007-99-2017 “干湿覆盖力变化的标准测试方法”

范围
1.1 This test method includes a visual assessment of wet and dry film to determine changes in the covering power of architectural coatings during drying.

1.2 This test method is not recommended for colors other than white and light colors.

1.3 The value in SI units shall prevail. 括号内的数值仅供参考.

1.4 本标准并非旨在解决所有问题, 如果有的话, 与其使用相关的安全问题. 本标准的使用者有责任建立适当的安全和健康实践，并在使用前确定监管限制的适用性.

1.5 本国际标准以《关于制定国际标准的原则的决定》中确立的国际公认的标准化原则为基础, 世贸组织贸易技术壁垒委员会发布的指南和建议 (技术性贸易壁垒).