GB/T 21872-2008 Active National standards

GB/T 21872-2008 Sulphonic acid hardener for foundry no-bake furan resin

Publish Date: 2008-05-14 Implement Date: 2008-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 21872-2008

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Chemical auxiliaries

ICS Name: Rubber synthetic ingredients

Publish Date: 2008-05-14

Implement Date: 2008-10-01

Pages: 8 pages

Scope

This standard specifies the product models and markings, requirements, test methods, inspection rules, labels, packaging, transportation, and storage of sulfonic acid curing agents for casting self-hardening furan resins. This standard applies to sulfonic acid curing agents for casting self-hardening furan resins obtained by sulfonation of toluene and xylene.

Development Information

Word Count: 12 Thousand words Pages: 8 pages

Referenced Standards

GB/T 4472-1984 General rule for determination of density and relative density for chemical products GB 190-1990 Labels for packages of dangerous goods GB 190-2009 Packing symbol of dangerous goods GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 265-1988 Petroleum products—Determination of kinematic viscosity and calculation of dynamic viscosity GB/T 601-2002 Chemical reagent Preparations of standard volumetric solutions GB/T 601-2016 Chemical reagent—Preparations of reference titration solutions GB/T 603-2002 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 603-2023 Chemical reagent—Preparations of reagent solutions for use in test methods GB/T 1250-1989 Rules for expression and judgement of limiting values GB/T 6678-2003 General principles for sampling chemical products 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 191-2025 Graphical symbols marking for handling and storage of packages

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