本文件规定了用于气体阻隔膜的粉末状和悬浮状粘土纳米板样品的测量特性和测量方法。此外，还描述了各个特性的测量协议。 本文件不涉及粘土纳米板制造后改性的特征。本文件不包括制造或使用过程中特定于健康和安全问题的注意事项。

This document specifies characteristics to be measured and measurement methods for clay nanoplate samples in powder and suspension forms used for gas-barrier films. In addition, measurement protocols for the individual characteristics are described. This document does not deal with characteristics of post-manufacturing modification of clay nanoplates. This document does not cover considerations specific to health and safety issues either during manufacturing or use.