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GB/T 31057.1-2014Granular materials - The physical properties - Part 1: Determination of apparent density (English PDF)

颗粒材料物理性能测试第1部分：松装密度的测量

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 22, 2014

Implementation date

June 1, 2015

Scope

GB/T 31057.1-2014 is the English-translated version of 颗粒材料物理性能测试第1部分：松装密度的测量.

GB/T 31057.1-2014 is the Chinese standard "Granular materials - The physical properties - Part 1: Determination of apparent density". Its scope clause reads: GB/T 31057 provisions of this part of the basic principles and methods of powder bulk density testing.

This section applies to a particle diameter of 5µm ~ 5mm solid powder. Not within the scope of this powder, can refer to this section to use. Its clauses include terms and definitions.

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Document preview — GB/T 31057.1-2014

National Standard of the People's Republic of China

Classification: A 28

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 laboratory instruments, equipment and components
6 pre-processing
8 bulk density calculation
10 Test Report
Annex B (informative) Bulk Density Test Report

1 Scope

GB/T 31057 provisions of this part of the basic principles and methods of powder bulk density testing.

This section applies to a particle diameter of 5µm ~ 5mm solid powder. Not within the scope of this powder, can refer to this section to use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein

Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 5314 sampling powder metallurgy method

3 Terms and Definitions

The following terms and definitions apply to this document.

3.1 Bulk density Apparentdensity

Volume mass of particulate material under specified conditions naturally filled units.

Principle 4

The powder from (fixed at a certain height) dropping funnel hole, fill the cup of known volume density. In the bulk state, in unit volume

Quality powder bulk density expressed powder.

5 laboratory instruments, equipment and components

5.1 The main instrument used experimental methods

5.1.1 Overview

This section gives a schematic view of the three methods used by the instrument. All according to the principle of making bulk density, bulk density can be obtained correctly

Any instrument can be used. Optional one or a combination.

5.1.2 funnel method

Funnel measuring instrument is shown in Figure 1.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

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