ASTM D5767-18 (2023) PDF
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St ASTM D5767-18 (2023)
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Ст ASTM D5767-18 (2023)
Original standard ASTM D5767-18 (2023) in PDF full version. Additional info + preview on request
Full title and description
Designation: ASTM D5767 − 18 (Reapproved 2023). Standard Test Method for Instrumental Measurement of Distinctness-of-Image (DOI) Gloss of Coated Surfaces. This test method defines electro‑optical procedures and reporting requirements for measuring the distinctness‑of‑image (image clarity) of coatings applied to planar, rigid substrates using instruments that project a slit or pattern and measure the reflected image through a comb or aperture system.
Abstract
ASTM D5767 specifies instrumental techniques to quantify the distinctness‑of‑image (DOI) gloss — a measure of how sharply a reflected image appears on a coated surface. The standard describes measurement principles, specimen selection, instrument geometry and calibration/verification practices, data reporting and interpretation, and referenced norms. Values are given in SI units and the method is intended for quality control, specification and comparative assessment of high‑gloss coated surfaces.
General information
- Status: Current / Published (reapproved).
- Publication date: Originally approved 2018; reapproved and published November 1, 2023 (designated D5767‑18 (2023)).
- Publisher: ASTM International (American Society for Testing and Materials).
- ICS / categories: 25.220.01 — Surface treatment and coating in general; Color and appearance (ASTM Committee E12).
- Edition / version: D5767‑18, reapproved 2023 (current edition: D5767‑18 (2023)).
- Number of pages: 7 pages.
Scope
This test method covers instrumental measurement of the distinctness‑of‑image (DOI) gloss of coating surfaces using electro‑optical measuring techniques. It is intended for coatings applied to planar, rigid substrates. The method describes how to project light through a narrow slit or pattern onto a specimen and measure the reflected image intensity through a sliding comb or aperture to calculate image clarity (DOI). The standard states values in SI units and references practices for specimen preparation and instrument verification. It does not attempt to address every safety concern associated with use.
Key topics and requirements
- Definition and interpretation of Distinctness‑of‑Image (DOI) / image clarity as a measurable surface appearance attribute.
- Instrumental measurement principles: slit/pattern illumination, combed shutter or aperture detection and electro‑optical sensing.
- Specimen requirements: coatings on planar, rigid substrates and appropriate selection of test panels.
- Geometric and optical conditions (illumination/viewing geometry, instrument apertures and spectral considerations) required for reproducible results.
- Calibration and verification procedures using working and reference standards to assign scale values.
- Test procedures and operator/practice guidance for obtaining mean DOI values and comb width information.
- Reporting requirements: mean DOI values, comb width, date/location/operator, instrument ID and any deviations from the method.
- Referenced standards and normative documents to support specimen preparation, gloss measurement and terminology.
Typical use and users
Used by paint and coatings manufacturers, automotive and transport OEMs, surface‑finish laboratories, quality control and R&D departments, instrument manufacturers and third‑party testing labs. Typical applications include production quality checks, incoming/outgoing inspection, formulation development, acceptance testing against specifications, and comparative evaluations of high‑gloss finishes.
Related standards
Commonly referenced and related standards include ASTM D523 (Specular Gloss), ASTM D2457 (Specular Gloss of Plastic Films and Sheets), ASTM D823 (Practices for Producing Films of Uniform Thickness), ASTM D3964 (Selection of Specimens), ASTM E284 (Terminology of Appearance), ISO 17221 (instrument spectral response guidance) and other ASTM appearance and gloss practices and guides cited in D5767.
Keywords
Distinctness of Image, DOI, image clarity, gloss, coated surfaces, electro‑optical measurement, comb shutter, slit illumination, appearance measurement, surface finish, ASTM D5767
FAQ
Q: What is this standard?
A: ASTM D5767 is a test method for the instrumental measurement of Distinctness‑of‑Image (DOI) gloss — a metric that quantifies how clearly an image is reflected from a coated surface. The current designation is D5767‑18 (Reapproved 2023), published November 1, 2023.
Q: What does it cover?
A: It covers electro‑optical procedures for measuring image clarity on coatings applied to planar rigid substrates, including instrument geometry, calibration/verification, specimen considerations and reporting. Values are expressed in SI units.
Q: Who typically uses it?
A: Coating and paint manufacturers, automotive and appliance OEMs, surface‑finish and appearance laboratories, quality control personnel, R&D teams and instrument vendors use this method for specification compliance, quality checks and comparative testing.
Q: Is it current or superseded?
A: The standard D5767‑18 was reapproved and published as D5767‑18 (2023) on November 1, 2023. That reapproval indicates the 2018 edition remains current as of that reapproval date.
Q: Is it part of a series?
A: It is maintained by ASTM Committee E12 (Color and Appearance) and is part of the family of ASTM appearance and gloss measurement standards and related ISO guidance documents; it is commonly used alongside standards such as ASTM D523 and related practices for specimen preparation and terminology.
Q: What are the key keywords?
A: Distinctness‑of‑Image, DOI, image clarity, gloss, coated surfaces, electro‑optical measurement, comb shutter, slit illumination, surface appearance.