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ASTM D1729 - 22
Standard Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials
| Fecha edición: |
2022-06-01
En Vigor
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|---|---|
| Idiomas disponibles: | Inglés |
| Resumen: | |
| Keywords: | color; color difference; color matching; lighting; viewing conditions; visual examination—color; visual examination—color difference; |
| Scope: | 1.1 This practice specifies the equipment and procedures for visual appraisal of the colors and color differences of opaque materials that are diffusely illuminated. These specifications are of critical importance in color matching. This practice requires judgments by observers with a minimum of normal color vision and preferably superior as rated with the FM-100 Hue Test as specified in Guide E1499. 1.2 Critical visual appraisal of colors and color differences of materials such as metallic and pearlescent paints requires illumination that is nearly a geometric simulation of direct sunlight, because such directional illumination permits observation of the sparkle (glitter) and goniochromatism that characterize such materials. Such viewing conditions are beyond the scope of this practice. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
| ICS: | 17.180.20 - Colores y medición de luz |
| CTN: | E12.11 - E12.11 |
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Otras Relaciones |
Es referenciada por D1562-22 Es referenciada por F0934-96R22 Es referenciada por D2454-23 Es referenciada por D0707-15R23 Es referenciada por D3794-22 Es referenciada por D5324-16R22 Es referenciada por D3730-17R22 Es referenciada por D6763-16R22 Es referenciada por D3451 - 24 Es referenciada por C1520 - 20(2024) Es referenciada por D3134 - 15(2024) Es referenciada por D1535 - 14(2023) Es referenciada por E1360 - 05(2025) Es referenciada por C1501 - 23 Es referenciada por D822 - 23 Es referenciada por G147 - 24 Es referenciada por D4587 - 23 Es referenciada por D8584 - 24 Es referenciada por D5531 - 17(2023) Es referenciada por D3361_D3361M-22 |










