GB/T 2022-1980
Replaced
JC/T 2649-2022
Active
Industry standards-Building materials
JC/T 2649-2022 citric acid gypsum
JC/T 2649-2022 citric acid gypsum
Basic Information
Standard Code:
JC/T 2649-2022
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Gypsum products
ICS Name:
Cement, gypsum, lime, and mortar
Publish Date:
2022-09-30
Implement Date:
2023-04-01
Scope
This document specifies the terms and definitions, grades and markings, general requirements, technical requirements, test methods, inspection rules, and packaging, marking, storage, and transportation of citric acid gypsum. This document is applicable to citric acid gypsum produced as a by-product during the process of making citric acid from biomass using microbial fermentation technology and calcium salt precipitation. Organic acid gypsums such as lactic acid gypsum and malic acid gypsum can refer to this document.
Development Information
Related Standards
GB/T 177-1985
Abolished
GB/T 177-1985 Test method for strength of hydraulic cement mortar
GB/T 6645-1986
Replaced
GB/T 6645-1986 Granulated electric furnace phosphorous slag used for cement production
GB/T 7897.1-1987
Replaced
GB/T 7897.1-1987 Test method of mechanical properties of mortar for ferrocement General principle
GB/T 7897.2-1987
Replaced
GB/T 7897.2-1987 Test method of mechanical properties of mortar for ferrocement Test of bending strength
GB/T 7897.3-1987
Replaced