GB/T 2999-2025 Active National standards

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

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

Publish Date: 2025-08-01 Implement Date: 2026-02-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 2999-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Fire-resistant materials

ICS Name: Fire-resistant materials

Publish Date: 2025-08-01

Implement Date: 2026-02-01

Pages: 16 pages

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 is used as an arbitration method.
This document is applicable to the determination of the bulk density of granular refractory materials.

Development Information

Word Count: 19 Thousand words Pages: 16 pages

Replace the following standards

GB/T 2999-2016 Refractory materials—Determination of bulk density of granular materials

Referenced Standards

GB/T 2997-2000 Test method for bulk density, apparent porosity and true porosity of dense shaped refractory products GB/T 2997-2015 Test method for bulk density,apparent porosity and true porosity of dense shaped refractory products GB/T 6005-1997 Test sieves—Metal wire cloth, perforated metal plate and electroformed sheet—Nominal sizes of opening GB/T 6005-2008 Test sieves—Metal wire cloth,perforated metal plate and electroformed sheet—Nominal sizes of openings GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 17617-1998 Refractory products—Sampling of raw materials and unshaped products GB/T 17617-2018 Rule of sampling and inspection for refractory raw materials GB/T 18930-2002 Terminology for refractories GB/T 18930-2020 Terminology for refractories

Adopt standards

ISO 8840:2021

Related Standards

GB/T 3002-1982 Replaced

GB/T 3002-1982 Test method for modulus of rupture of refractory products at elevated temperatures

Publish Date: 1982-03-29

GB/T 3994-1983 Replaced

GB/T 3994-1983 Shaped insulating refractory products—Fireclay bricks

Publish Date: 1983-12-12

GB/T 3995-1983 Replaced

GB/T 3995-1983 Shaped insulating refractory products—High alumina bricks

Publish Date: 1983-12-12

GB/T 3996-1983 Abolished

GB/T 3996-1983 Shaped thermal insulating products—Diatomite bricks and shapes

Publish Date: 1983-12-12

GB/T 4984-1985 Replaced

GB/T 4984-1985 Chemical analysis methods of zirconia-alumina refractories

Publish Date: 1985-03-06

GB/T 6900.9-1986 Replaced

GB/T 6900.9-1986 Fireclay and high-alumina refractories—Determination of potassium oxide and sodium oxide content—Atomic absorption spectrophotometric method

Publish Date: 1986-08-26