GB/T 21782.1-2025 Active National standards

GB/T 21782.1-2025 Coating powders—Part 1:Determination of particle size distribution by sieving

GB/T 21782.1-2025 Coating powders—Part 1:Determination of particle size distribution by sieving

Publish Date: 2025-10-05 Implement Date: 2026-02-01 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 21782.1-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Paints, pigments, and dyes

ICS Name: The coatings and pigments industry

Publish Date: 2025-10-05

Implement Date: 2026-02-01

Pages: 16 pages

Scope

This document describes the principle, instruments, sampling, selection of sieving methods, sieving selectivity, preparation of test sieves, test procedures, presentation of results, and test reports for determining the particle size distribution of powder coatings by sieving method.
This document is applicable to the determination of particle size distribution within the range of 32 μm to 300 μm.

Development Information

Word Count: 21 Thousand words Pages: 16 pages

Same series standard

GB/T 21782.2-2025 Coating powders—Part 2:Determination of density by gas comparison pycnometer(referee method) GB/T 21782.3-2025 Coating powders—Part 3:Determination of density by liquid displacement pycnometer GB/T 21782.4-2025 Coating powders—Part 4:Calculation of lower explosion limit GB/T 21782.8-2025 Coating powders—Part 8:Assessment of the storage stability of thermosetting powders GB/T 21782.10-2025 Coating powders—Part 10:Determination of deposition efficiency

Replace the following standards

GB/T 21782.1-2008 Coating powders—Part 1:Determination of particle size distribution by sieving

Referenced Standards

GB 3186-1982 Sampling paint products GB/T 3186-2006 Paints, varnishes and raw materials for paints and varnishes—Sampling GB/T 6003.1-1997 Test sieves of metal wire cloth GB/T 6003.1-2012 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth GB/T 6003.1-2022 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth GB/T 6003.2-1997 Test sieves of perforated metal plate GB/T 6003.2-2012 Test sieves—Technical requirements and testing—Part 2:Test sieves of metal wire cloth GB/T 6003.2-2024 Test sieves—Technical requirements and testing—Part 2:Test sieves of perforated metal plate GB/T 21782.14-2010 Coating powders—Part 14:Terminology

Adopt standards

ISO 8130-1:2019

Related Standards

GB/T 21782.2-2025 Active

GB/T 21782.2-2025 Coating powders—Part 2:Determination of density by gas comparison pycnometer(referee method)

Publish Date: 2025-10-05

GB/T 21782.10-2025 Active

GB/T 21782.10-2025 Coating powders—Part 10:Determination of deposition efficiency

Publish Date: 2025-10-05

GB/T 21782.3-2025 Active

GB/T 21782.3-2025 Coating powders—Part 3:Determination of density by liquid displacement pycnometer

Publish Date: 2025-10-05

GB/T 21782.4-2025 Active

GB/T 21782.4-2025 Coating powders—Part 4:Calculation of lower explosion limit

Publish Date: 2025-10-05

GB/T 21782.8-2025 Active

GB/T 21782.8-2025 Coating powders—Part 8:Assessment of the storage stability of thermosetting powders

Publish Date: 2025-10-05