GB/T 21883-2025 Active National standards

GB/T 21883-2025 Fluorescent whitening agents—Determination of UV-absorption and fluoristrength

GB/T 21883-2025 Fluorescent whitening agents—Determination of UV-absorption and fluoristrength

Publish Date: 2025-10-05 Implement Date: 2026-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 21883-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Basic standards and general methods for dyes

ICS Name: Comprehensive Chemical Products

Publish Date: 2025-10-05

Implement Date: 2026-05-01

Pages: 12 pages

Scope

This document describes the method for determining the UV absorption and fluorescence intensity of fluorescent whitening agents.
This document is applicable to the determination of UV absorption and fluorescence intensity of various types of fluorescent whitening agents, including water-soluble and water-insoluble ones.

Development Information

Word Count: 12 Thousand words Pages: 12 pages

Replace the following standards

GB/T 21883-2016 Fluorescent whitening agents—Determination of fluoristrength

Referenced Standards

GB/T 2374-2017 Dyestuffs—General rules for dyeing test GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 6687-1986 Glossary of dyestuff terms GB/T 6687-2006 Glossary of dyestuff terms GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values

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