Granularity analysis

Particle size analysis usually refers to the analysis of particles. The methods and objects of particle size analysis are very wide.
For clastic deposits that are easy to decompose and leave, the screening method and sedimentation velocity method are usually used; for clastic deposits that are tightly consolidated and difficult to dissociate, the thin section identification method is usually used; for coarse gravel, the direct measurement method is usually used.
Based on the analysis results, the conditions and environment for the formation of sediments can be inferred. For particle size analysis instruments with different principles, the measurement principles they are based on are different, and their particle characteristics are also different. Only equivalent comparisons can be made, and direct horizontal comparisons cannot be made.
Zhongke Testing provides particle size/particle size analysis services and has CMA and CNAS qualification certification.

Flour, cement, plastic, papermaking, rubber, ceramics, medicines, absorbents, liquid-absorbent materials, nanomaterials, polyacrylate powder, silica, soil, paint, pigments, carbon black, pesticides, fine-grained soil, asphalt mixtures, aggregates, etc.

laser method, dynamic image method, static image method, electron microscope method, photoresist method, etc.

GB/T 15445.2-2006 Expression of particle size analysis results. Part 2: Calculation of average particle size/diameter and individual moments from particle size distribution
GB/T 6524-2003 Metal powder measurement of particle size distribution Gravity sedimentation light transmission method
GB/T 16742-2008 Functional characterization of particle size distribution Power function
GB/T 20099-2006 Sample preparation - Dispersion method of powder in liquid
GB/T 21649.1-2008 Particle size analysis Image analysis method Part 1: Static image analysis method
GB/T 21649.2-2017 Particle size analysis Image analysis method Part 2: Dynamic image analysis method
GB/T 25266-2010 Coatings Determination of particle size distribution of coating fillers using Anderson dropper method
GB/T 29025-2012 Particle size analysis Resistance method
HG/T 5595-2019 Determination of particle size distribution of olefin polymerization catalysts Laser diffraction

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