意味と使い方
5.1 The ability to quickly and accurately assess and predict the long-term weathering properties of plant applied coatings is important for making sound business and technical decisions.

5.2 It is important to include control samples of known field properties to determine the efficacy of the practice on specific substrates and coating systems. These control samples may include materials known to have acceptable and unacceptable field properties for the defects under consideration.

5.3 The results derived from this practice are better used to compare the relative properties of materials tested simultaneously in the same device.

5.4 The inclusion of control samples and their resulting data will help to deal with test variability caused by seasonal or annual changes in important climatic factors.

5.5 Extensive research was conducted in the development of this standard practice. The study showed that this approach was not useful for determining quantitative accelerators. しかし, this test is useful as a comparison test.

5.6 It is recommended that control samples and samples be repeated at least twice for statistical evaluation of the results. For additional guidance on determining the number of repeats, see Practice G169.

ASTM D5722-2014 集中自然太陽光と土壌凍結融解手順を使用した、工場でコーティングされたエンボス硬質繊維板の屋外耐候性促進に関する標準慣行

ステップ 1: 範囲
1.1 This Practice includes techniques for accelerating the weathering effects of factory coated patterning hard fiberboard using the Practice G90’s 1st cycle (concentrated natural sunlight with periodic surface water spray) plus a soil-freeze-thaw cycle (セクションを参照 5 of this Practice).

1.2 Tests performed using the methods described in this practice may be used for qualitative assessment of weathering effects. The relative durability of coated cardboard can be well determined by comparing their test results with those of control samples from real-time exposure test experience.

1.3 SI 単位またはインチポンド単位で表された値は標準値として別個に扱われます。. 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.

1.4 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。.