GB/T 20973-2020 Active National standards

GB/T 20973-2020 Bentonite

GB/T 20973-2020 Bentonite

Publish Date: 2020-06-02 Implement Date: 2021-04-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 20973-2020

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Other non-metallic mineral products

ICS Name: Non-metallic minerals

Publish Date: 2020-06-02

Implement Date: 2021-04-01

Pages: 17 pages

Scope

This standard specifies the terms and definitions, classification, marking, requirements, test methods, inspection rules and marking, packaging, transportation, and storage of bentonite. This standard applies to bentonite used in casting, metallurgical pellets, drilling mud, and civil engineering. This standard does not apply to processed products whose structure has been altered by treatment with inorganic acids or organic substances.

Development Information

Word Count: 32 Thousand words Pages: 17 pages

Replace the following standards

GB/T 20973-2007 Bentonite

Referenced Standards

GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 1966-1996 Test method for apparent porosity and bulk density of porous ceramic GB/T 1966-2024 Porous ceramics—Determination of apparent porosity and bulk density GB/T 1967-1996 Test method for pore diameter of porous ceramic GB/T 2684-1981 Foundry sands and sand mixtures for casting—Method of testing GB/T 2684-2009 Test methods for foundry sands and molding mixtures GB/T 5005-2001 Drilling fluid materials specifications GB/T 5005-2010 Specifications of drilling fluid materials GB/T 6003.1-1997 Test sieves of metal wire cloth GB/T 6003.1-2012 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth GB/T 6003.1-2022 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods 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 25138-2010 Standard sand for checking foundry binder GB/T 25138-2024 Standard silica sand for checking foundry binder DZ/T 0118-1994 Laboratory standard sieve shaker technical specification GB/T 2684-2025 Test methods for foundry sands and molding mixtures

Related Standards

GB/T 5463.1-1985 Replaced

GB/T 5463.1-1985 Non-metallic mineral products—Commonly used terms

Publish Date: 1985-10-12

GB/T 5463.2-1985 Replaced

GB/T 5463.2-1985 Technical terms of non-metallic mineral products—Talc

Publish Date: 1985-10-12

GB/T 5463.3-1986 Replaced

GB/T 5463.3-1986 Technical terms of non-metallic mineral products—Gypsum and anhydrite

Publish Date: 1986-09-01

GB/T 14505-1993 Replaced

GB/T 14505-1993 Method for chemical analysis of rocks and ores—General rules and regulations

Publish Date: 1993-06-19

GB/T 14506.10-1993 Replaced

GB/T 14506.10-1993 Silicate rocks—Determination of manganese oxide

Publish Date: 1993-06-19

GB/T 14506.11-1993 Replaced

GB/T 14506.11-1993 Silicate rocks—Determination of potassium oxide and sodium oxide

Publish Date: 1993-06-19