The new version explicitly excludes curved surfaces (which require a different standard, ASTM E430) and clarifies that it is not for use with metallic or mirror-like surfaces due to secondary reflections.
Stop searching for and start searching for "ASTM D523-14(2023) Redline" .
Always calibrate your gloss meter using the polished black glass standard provided by the manufacturer before every testing session.
Used for most specimens. It is the starting point for determining if a surface is high-gloss or matte.
What “new” might mean
A standardized incandescent or LED light source that projects a parallel beam of light toward the sample surface. Source Lens: Focuses the light beam onto the test specimen. Receptor Lens: Collects the reflected light rays.
The official standards body for Ireland, which sells the PDF for €53.26 EUR .
ASTM has implemented a new policy that affects how you can access the version of this standard: Astm D 523 Brillo | PDF | Electrodynamics | Atomic - Scribd
For any professional needing a copy of this standard, the official source is ASTM International. Obtaining the PDF directly from ASTM or its authorized distributors ensures that the document is the authentic, complete, and currently active version. Here is how to get the official PDF for :
This geometry is tailored for matte or low-gloss surfaces. If a surface appears very flat (e.g., flat interior wall paint), the 85-degree angle helps to identify subtle differences in sheen that would be completely missed at 60 degrees. How the Test is Conducted
The ASTM D523-25 standard is the authoritative, globally accepted method for measuring the specular gloss of nonmetallic materials. It plays a vital role in quality control, R&D, and regulatory compliance across a vast range of industries. With the release of the new 2025 edition, it is essential for professionals to update their reference documents and ensure their gloss measurement procedures align with the latest published specifications. To maintain the highest standards of quality and legal compliance, the only route to obtaining a genuine PDF is through official channels like ASTM International or its network of authorized distributors. By securing the official document, you ensure that your work is based on the most current, accurate, and legally obtained standard.
Ideal for high-gloss, high-reflectance surfaces (60° values > 70 GU).