GB/T 4293-1984
abolished_transferred
T/GXAS 224-2021
Active
Group standards
T/GXAS 224-2021 Nanosized calcium carbonate production technical specification
T/GXAS 224-2021 Nanosized calcium carbonate production technical specification
Price:
$ 20.00
Basic Information
Standard Code:
T/GXAS 224-2021
Standard Type:
Group standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Food
ICS Name:
Salt
Publish Date:
2021-09-10
Implement Date:
2021-09-17
Scope
Scope: This document establishes the procedures for the production of nano-calcium carbonate, stipulates the requirements for safe production, equipment and facilities, raw materials and auxiliary materials, and provides operating instructions for each stage of the processes such as calcination, digestion, slag removal, aging, carbonation (carbonation), surface treatment, filter press, drying, screening, and packaging. This document is applicable to the production of nano-calcium carbonate by the bubbling carbonation (carbonation) method; Main technical content: This document establishes the procedures for the production of nano-calcium carbonate, stipulates the requirements for safe production, equipment and facilities, raw materials and auxiliary materials, and provides operating instructions for each stage of the processes such as calcination, digestion, slag removal, aging, carbonation (carbonation), surface treatment, filter press, drying, screening, and packaging. This document is applicable to the production of nano-calcium carbonate by the bubbling carbonation (carbonation) method.
Development Information
Related Standards
GB/T 6275-1986
Abolished
GB/T 6275-1986 Ammonium hydrogen carbonate for industrial use
GB/T 6276.1-1986
Replaced
GB/T 6276.1-1986 Ammonium hydrogen carbonate for industrial use—Determination of total alkalinity—Volumetric method
GB/T 6276.2-1986
Replaced
GB/T 6276.2-1986 Ammonium hydrogen carbonate for industrial use—Determination of chloride content—Potentiometric method
GB/T 6276.3-1986
Replaced
GB/T 6276.3-1986 Ammonium hydrogen carbonate for industrial use—Determination sulphide content—Visible turbidimetric method
GB/T 6276.4-1986
Replaced