意味と使い方
5.1 The results of this test method will indicate the relative water permeability of the tape at the smallest size, usually perpendicular to the backing of the tape.

5.1.1 The water channel parallel to the interface of the tape cup is much larger than the thickness of the tape cup, which is usually an almost separate transmission water source.

5.1.2 Some types of tape allow a relatively free path in a direction perpendicular to the backing or along a backing path parallel to the glue cup interface, thus making the adhesive the primary barrier.

5.2 If the adhesive does not continue to adhere to the cup body flange during exposure, resulting in an unexpected water intake path, it shall be considered that no measurement has been made. したがって, in wet conditions (close to test conditions), tape may not be suitable for use on surfaces such as cup flanges.

注記 1: It may only be the use of tape material as a waterproof material that has aroused interest. この場合, the degree to which the tape adheres to the cup flange may not matter, and measures need to be taken to prevent any edge effects. These will be mentioned in section 10.

ASTM D3816/D3816M-2020 “感圧テープの透水性の標準試験方法”

ステップ 1: 範囲
1.1 The test method provides a procedure for measuring 2-inch water permeability. Or wider pressure-sensitive tape.

1.2 Values expressed in SI units or inch-pound units shall be regarded as standard values respectively. The values specified in each system may not be equal; したがって, 各システムは独立して使用する必要があり、値をいかなる方法でも組み合わせることはできません.

1.3 この規格は、その使用に関連するすべての安全上の懸念に対処することを目的としたものではありません。. 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。, 健康および環境仕様を確認し、使用前に規制制限の適用可能性を判断するため.

1.4 この国際規格は、国際規格開発の原則に関する決定で確立された国際的に認められた標準化原則に基づいています。, WTO が発行したガイドラインと勧告 貿易の技術的障壁 (未定) 委員会.

2. ファイルを参照してください
ASTM規格

D996 包装および流通環境条件

D3715 / D3715M 感圧テープの品質保証実践

D4332 Practice of regulating containers, packaging or packaging components for testing

E122 Practice of calculating sample sizes to estimate average values of batch or process features with specified precision