意味と使い方
4.1 絶縁皮膜の劣化はその水分率と密接に関係しています. The water permeability test provides a way to monitor the passage of water through the coating material by changes in the dielectric constant of the coating material. When expressed in time, the test data will reflect the rate of deterioration of the coating material properties and will correlate with its expected service life as an insulating coating. The water penetration test will also provide information that will help determine a better coating thickness for a given material.

ASTM G9-07-2020 パイプコーティングの透水性に関する標準試験方法

範囲
1.1 This method includes determining the apparent depth rate of water penetration into the insulating coating applied to piping.

1.2 Values expressed in SI units are considered standard. 括弧内の値は参考値です。.

1.3 この規格はすべてに対処することを目的としたものではありません, もしあれば, その使用に伴う安全性の懸念. 適切な安全性を確立するのは、この規格のユーザーの責任です。, 健康および環境慣行を確認し、使用前に規制制限の適用可能性を判断するため.

1.4 This international standard is based on internationally recognized standardization principles established in the Decision on International Standards, Guidelines and Recommended Principles issued by the WTO Technical Barriers to Trade (未定) 委員会.