GB/T 2999-2025: Refractory materials - Determination of bulk density of granular materials

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Scope

This document describes two methods for determining the bulk density of granular refractory
materials with a particle size greater than 2.0 mm.
---Method 1.weighing method;
---Method 2.burette method.
Method 1 serves as the arbitration method.
This document applies to the determination of the bulk density of granular refractory materials.

Basic Data

Standard ID	GB/T 2999-2025 (GB/T2999-2025)
Description (Translated English)	Refractory materials - Determination of bulk density of granular materials
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	Q40
Classification of International Standard	81.080
Word Count Estimation	14,185
Date of Issue	2025-08-01
Date of Implementation	2026-02-01
Older Standard (superseded by this standard)	GB/T 2999-2016
Issuing agency(ies)	State Administration for Market Regulation, Standardization Administration of China