ASTM D7856
Standard Specification for Color and Appearance Retention of Solid and Variegated Color Plastic Siding Products using CIELab Color Space
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About This Item
ASTM D7856 is the standard specification for color and appearance retention of solid and variegated color plastic siding products using CIELab color space. It provides a technical basis for evaluating how siding products maintain their visual properties over time, helping manufacturers, specifiers, and buyers compare products more consistently. By focusing on color and appearance retention, this ASTM standard supports quality control and product selection for exterior applications where long-term visual stability matters.
Overview of ASTM D7856
This standard addresses the retained color and appearance performance of plastic siding products in both solid and variegated colors, using CIELab color space as the measurement framework. That makes it useful for establishing a common approach to visual property evaluation and specification compliance. ASTM D7856 is relevant where consistent appearance is part of the product requirement, and it helps align testing and procurement language with a recognized technical document.
Common use cases of ASTM D7856
ASTM D7856 is commonly used when evaluating or specifying plastic siding products that must maintain their original color and appearance after exposure and service. It may be referenced in product development, quality assurance, and purchasing documentation for siding materials with either uniform or variegated coloration. The standard is also useful in lab and production workflows where color measurement and retention need to be described in a consistent, repeatable way.
Benefits of using ASTM D7856
Using ASTM D7856 can improve consistency in product evaluation and help reduce ambiguity in appearance-related requirements. It supports clearer communication between suppliers and purchasers, especially when color retention is a key performance expectation. The standard may also aid compliance checks, testing programs, and quality control efforts by providing a recognized specification framework for comparing siding products and managing visual performance risk.
- Color retention evaluation for plastic siding
- CIELab-based appearance assessment
- Solid and variegated color products
- Specification and compliance reference
- Quality control and product comparison
- Publication Date: 2021-07-19
- Publisher: ASTM
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