GB/T 21779-2025 in English
VALIDTest method for particle size distribution of metal powders and related compounds by light scattering
- Issued on:2025-08-29
- Implemented on:2025-12-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$204.00
| Standard No: | GB/T 21779-2025 |
| Document status: | VALID |
| Title in English: | Test method for particle size distribution of metal powders and related compounds by light scattering |
| Title in Chinese: | 金属粉末和相关化合物粒度分布的光散射试验方法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2025-08-29 |
| Implemented on: | 2025-12-01 |
| Superseding: |
GB/T 21779-2008 Test method for particle size distribution of metal powders and related compounds by light scattering
|
| ICS Classification: | 13.300-Protection against dangerous goods |
| Chinese Classification: | A80-Marking, packaging, transport and storage in general |
| Professional Classification: | GB-National Standard |
| Related Keywords: | particle size distribution
related compounds test method test procedures metal powders |
| Related Topics: | light scattering theory
granular application Scattering instrument scattering theory Laser Scattering Particle Size Distribution Method |
《GB/T 21779-2025金属粉末和相关化合物粒度分布的光散射试验方法》由TC251（全国危险化学品管理标准化技术委员会）归口，主管部门为国家标准委。
Scope
This document establishes the principles for determining the particle size distribution of granular materials such as metals and related compounds using the light scattering method. It also specifies the instruments, reagents, and materials used in the test, as well as the test procedures and reporting requirements. This document is applicable to the determination of the particle size distribution of metals and related compounds in the range of 0.4μm to 2000μm using the light scattering method.
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