GB/T 26645.1-2011 Active National standards

GB/T 26645.1-2011 Determination of particle size distribution by gravitational liquid sedimentation methods—Part 1:General principles and guidelines

Publish Date: 2011-06-16 Implement Date: 2012-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 26645.1-2011

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Screening, sieve plates, and sieve nets

ICS Name: Granularity analysis and sieving

Publish Date: 2011-06-16

Implement Date: 2012-03-01

Pages: 17 pages

Scope

This part of GB/T 26645 specifies a method for analyzing the particle size distribution of particulate materials using the liquid gravity sedimentation method, with a typical particle size measurement range of 0.5μm to 100μm.
This part is applicable to the measurement of the particle size distribution of slurries or particulate materials that can be dispersed in liquids. Under normal circumstances, the density difference between the dispersed phase and the continuous phase is positive, but it can also be used to measure the particle size distribution of emulsion droplets with a lower density than the dispersed phase. The particles should not undergo physical or chemical changes in the suspension. For hazardous materials, basic protective measures are required, especially when using low-boiling point volatile liquids as the continuous phase, the analyst should first conduct an explosion-proof test.