GB/T 21779-2008 (English Version) PDF

Standard No.: GB/T 21779-2008
Language: Chinese, Available in English version
Release Date: 2008
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 21779-2008

Scope: This method is applicable to the determination of particle size distribution of granular substances such as metals and compounds by light scattering method, and the results are expressed in volume percentage. This method is suitable for the analysis of water-dispersed and non-water-dispersed samples, and is also suitable for the analysis of gas dispersion of hygroscopic substances or substances that will react with liquid carriers. This method is applicable to the determination of the particle size distribution of substances with particle sizes ranging from 0.4 μm to 2000 μm. The standard units for values in this method are SI units.

GB/T 21779-2008 Referenced Document

ASTM B215 Standard Practices for Sampling Finished Lots of Metal Powders
ASTM B243 Standard Terminology of Powder Metallurgy*， 2023-05-01 Update
ASTM B821 Standard Guide for Liquid Dispersion of Metal Powders and Related Compounds for Particle Size Analysis
ASTM E1617 Standard Practice for Reporting Particle Size Characterization Data
ISO 13320-1 Particle size analysis - Laser diffraction methods - Part 1: General principles

2008 GB/T 21779-2008 Test method for particle size distribution of metal powders and related compounds by light scattering