意味と使い方

3.1 This test method can be used to determine the anti-swelling efficiency of various waterproof formulations when applied to wood. This is the initial method for assessing the ability of waterproofed wood to operate satisfactorily when exposed to a liquid water environment.

3.2 Differences in the swelling of untreated wood species when immersed in water can also be determined by this test method.

3.3 The method is a basic screening test, so that the anti-swelling efficiency of the water repellent can be preliminarily determined. This is a qualitative approach designed to provide a reproducible method to establish: (1) the anti-swelling efficiency of a waterproofing formula, そして (2) the relative expansion of untreated wood species when exposed to a liquid water environment.

ASTM D4446-13 防水配合物の抗膨潤効果と液体水にさらされたときの未処理木材の膨張差に関する標準試験方法

ステップ 1: 範囲

1.1 This test method is designed to evaluate the effectiveness of a waterproofing composition over dimensional changes in coated wood immersed in water. It can also be used to measure differential expansion of untreated wood when exposed to a liquid water environment. The tested compositions are designed to be mixed evenly and applied to an exterior wood surface by brushing, rolling, dipping or spraying.

1.2 Values expressed in SI units or inch-pound units should be considered separately as a standard. 各システムに記載されている値は完全に同等ではない場合があります; したがって, 各システムは独立して使用する必要があります. 2 つのシステムの値を組み合わせると、コンプライアンス違反が発生する可能性があります.

1.3 この規格は、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, もしあれば, その使用に関連する. 適切な安全衛生慣行を確立し、使用前に規制上の制限の適用可能性を判断することは、この規格のユーザーの責任です。.