意味と目的
4.1 The procedures described in this practice are intended to help evaluate the performance of house and decorative paints on new, previously unpainted wood.

4.2 Due to differences in solar radiation, wet time, 温度, contaminants, およびその他の要因, the relative durability of paint during outdoor exposure may vary considerably depending on the location of the exposure. したがって, it cannot be assumed that the results of a single exposure at a single location will help determine the relative durability of different locations. Exposure is recommended at multiple sites with different climates that represent a wide range of expected service conditions.

4.2.1 Due to annual climate variability, the results of a single exposure test cannot be used to predict the absolute rate of material degradation. It takes several years of repeated exposure to obtain an “average” test result for a given location.

4.2.2 Solar radiation varies greatly with the time of year. This can lead to large differences in apparent degradation rates for many coatings. It is not recommended to compare results for materials exposed for a short period of time (less than one year) unless the materials were exposed at the same location at the same time.

4.2.3 It is recommended to conduct at least three repeated tests for each material. Based on the parameters of the known material, a statistical estimate of the number of required repetitions can be found in Practice E122.

4.3 The Meaning and Uses section in Practice G7 addresses many of the variables to be considered in external exposure testing.

ASTM D 1006-2021 “木材上の塗料の屋外暴露試験”

の範囲
1.1 This practice covers the procedures to be followed for direct exposure of previously unpainted wood and wood composites to house and decorative paints. When the sponsor actual exposure of the aging test is carried out by a separate agency, the specific conditions for testing and controlling the exposure of the specimen should be clearly defined and mutually agreed upon by the parties.

1.2 This standard covers sample preparation, including the application of test coatings to wood substrates.

1.3 Values expressed in SI units or inch-pound units should be treated separately as standard values. 各システムで指定される値は必ずしも同じではありません; したがって, 規格への準拠を保証するため, 各システムは互いに独立して使用する必要があり、2 つのシステムの値を組み合わせてはなりません。.

1.4 この規格は、すべての安全問題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. 適切な安全性を確立するのは、この規格の使用者の責任です。, 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.

1.5 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従って開発されました。, 世界貿易機関の貿易の技術的障壁に関する委員会が発行したガイドラインと勧告.