意味と使い方
5.1 The test method determines the coverage of the test coating by visually evaluating the sprayed coating.
ノート 1 Test method D2805 describes an instrumental method for determining coverage. Apply the film to a uniform thickness (例えば. with a scraper), measure the film thickness strictly, and determine the opacity by photometry. Thus the concealment force can be determined with high precision.
5.2 Test method D6762 is not as accurate as test method D2805, but it is widely used because it is closely related to the application characteristics of paints and is simpler in terms of concept and evaluation.
ASTM D6762-2018 “Determination of Covering Power of Coatings by Self-Evaluation of Spraying Construction Coatings”
ステップ 1: 範囲
1.1 This test method enables quantitative visual determination of the film thickness required for complete coverage. The film thickness is considered to test the coating’s hiding power.
1.2 The method is applicable only to sprayed coatings, but the concept can also be applied to other applications.
1.3 Values expressed in inches to pounds shall be treated as standard values. The values given in brackets are mathematical conversions of SI units for reference only and are not considered as standards.
1.4 This standard is not intended to address all safety issues associated with its use. 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.
1.5 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基づいています。, WTO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 (未定).
ASTM D6762-2018 “Determination of Covering Power of Coatings by Self-Evaluation of Spraying Construction Coatings”
2. ファイルを参照してください
ASTM規格
D16 Paints, terms related to coatings, materials and applications
Practice of preparing cold rolled steel plates for testing paints, フィルムアプリケーション, conversion films and related coating products
D1005 Test method for dry film Thickness of organic coatings using a micrometer
D1729 Visual evaluation of diffuse reflection of opaque materials for color and chromatic aberration practice
Method for preparing D1730 coated aluminum and aluminum alloy surfaces
D2805 Test method for Covering power of coatings by reflection
D7091 Nondestructive measurement of dry film thickness for non-magnetic coatings for ferrous metals and for non-magnetic, non-conductive coatings for ferrous metals
E691 Practice of conducting interlaboratory studies to determine the accuracy of test methods