Determination of particle size distribution - Electrical sensing zone method - Part 1: Aperture tube method

Determination of particle size distribution - Electrical sensing zone method - Part 1: Aperture tube method

Standard Number GB/T 29025.1-2025
Organization Standardization Administration of China China
Level National
Category Specification
Status
  • OCT 2025 Published
ABSTRACT

This document describes a method for measuring the particle size distribution of particles dispersed in an electrolyte solution using the resistance method.

This document applies to biological particles (such as cells) with a particle size range of approximately 0.5 μm to 1 mm or larger (depending on the implementation), as well as toner,

Particle size analysis of industrial particulate materials such as cement, ceramic powder, metal powder, pigments, and polymer powders. This method involves measuring pulse height.

The particle size distribution is obtained by analyzing its relationship with particle volume or diameter. This document does not cover specific requirements for measurements of particular materials.