规定了制图和复制所需的最低要求、细节和质量，并规定了最常用克数的适当测试方法。附录A描述了使用反射法测量透明度，附录B描述了耐撕裂性的测定。

Specifies the minimum requirements, details qualities necessary for draughting and reproduction, and specifies appropriate test methods for the most commonly used grammages. Annex A describes measurement of transparency using the reflectance method, Annex B describes determination of tear growth resistance.