GB/T 20966-2007 in English
VALIDDetermination of particle size distribution for colliery powders
- Issued on:2007-07-30
- Implemented on:2008-01-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$117.00
《GB/T 20966-2007煤矿粉尘粒度分布测定方法》由603(中国煤炭工业协会)归口,主管部门为中国煤炭工业协会。
本标准规定了应用重力沉降光透法测定煤矿粉尘粒度分布使用的试剂、材料、仪器和制样,测定步骤,测定结果表述和测定报告。本标准适用于煤尘、岩尘和滤膜粉尘粒度分布的测定。
Scope
This standard specifies the reagents, materials, instruments and sample preparation, measurement procedures, expression of measurement results and measurement reports used in the determination of coal mine dust particle size distribution by gravity sedimentation light transmission method. This standard applies to the determination of particle size distribution of coal dust, rock dust and filter dust.

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