GB/T 47069.1-2026 Active
GB/T 47069.1-2026 Determination of particle density—Sedimentation methods—Part 1:Isopycnic interpolation approach
Abstract
This document specifies a method for determining the density of solid particles or droplets (hereinafter collectively referred to as "particles") dispersed in a liquid. This method is based on Archimedes' principle, which states that the buoyancy of a particle completely immersed in a liquid is equal to the weight of the fluid displaced by the particle. If the weight of the particle is equal to its buoyancy, the particle will stop settling or floating due to gravity or centrifugal force and remain in suspension. Under these conditions, the density of the particle is equal to the density of the liquid. This document determines the density of the particles by analyzing the migration speed and direction of the particles dispersed in liquids with densities lower than and higher than the density of the particles. All particles have the same material composition.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Active |
| Standard Code | GB/T 47069.1-2026 |
| CCS | Screening, sieve plates, and sieve nets |
| ICS | Granularity analysis and sieving |
| Implement Date | 2026-08-01 |