GB/T 5211.9-2025 Active National standards

GB/T 5211.9-2025 General methods of test for pigments and extenders—Part 9:Comparision of resistance to light of coloured pigments of similar types

GB/T 5211.9-2025 General methods of test for pigments and extenders—Part 9:Comparision of resistance to light of coloured pigments of similar types

Publish Date: 2025-06-30 Implement Date: 2026-01-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 5211.9-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods for pigments

ICS Name: Pigments and fillers

Publish Date: 2025-06-30

Implement Date: 2026-01-01

Pages: 20 pages

Scope

This document describes a general test method for comparing the lightfastness of pigments of the same type (the agreed reference pigment and the test sample).
This document provides two exposure methods. Method A involves exposing the pigment dispersion samples under natural light through a glass; Method B involves exposing the pigment dispersion samples directly to artificial light sources.
This document is applicable to coloring pigments.

Development Information

Word Count: 23 Thousand words Pages: 20 pages

Replace the following standards

GB/T 1710-2008 Comparison of resistance to light of coloured pigments of similar types

Referenced Standards

GB 250-1995 Gray scale for assessing change in colour GB/T 250-2008 Textiles—Tests for colour fastness—Grey scale for assessing change in colour GB 3186-1982 Sampling paint products GB/T 3186-2006 Paints, varnishes and raw materials for paints and varnishes—Sampling GB/T 11186.1-1989 Methods for measuring the color of paint films—Part 1:Principles GB/T 11186.2-1989 Methods for measuring the color of paint films—Part 2:Colour measurement GB/T 11186.3-1989 Methods for measuring the color of paint films—Part 3:Calculation of color differences GB/T 16422.2-2022 Plastics—Methods of exposure to laboratory light sources—Part 2:Xenon-arc lamps ISO 18451-1 GB/T 11186-2025 Methods for measuring the colour of coatings

Adopt standards

ISO 787-15:2019

Related Standards

GB/T 4464-1984 Replaced

GB/T 4464-1984 Test method of dyestuff migration

Publish Date: 1984-06-05

GB/T 4467-1984 Replaced

GB/T 4467-1984 Test method for the dispersion stability of vat dye suspensions

Publish Date: 1984-06-05

GB/T 4468-1984 Replaced

GB/T 4468-1984 Test method for the dispersion stability of disperse dye suspensions

Publish Date: 1984-06-05

GB/T 4469-1984 Replaced

GB/T 4469-1984 Test method for the reduction speed of vat dyes—Steam process

Publish Date: 1984-06-05

GB/T 5540-1985 Replaced

GB/T 5540-1985 Determination of dispersibility for disperse dye—Filter test of double filter papers

Publish Date: 1985-01-01

GB/T 5211.10-1985 Replaced

GB/T 5211.10-1985 Method for the determination of resistance to paraffin of pigments

Publish Date: 1985-07-16