T/QAS 163-2026 Active Group standards

T/QAS 163-2026 Cement Curing Agent - Part 1: Composiitional Slag from Industrial Byproducts

Publish Date: 2026-03-18 Implement Date: 2026-03-18 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/QAS 163-2026

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Other chemical products

Publish Date: 2026-03-18

Implement Date: 2026-03-18

Scope

This document specifies the terms and definitions, classification and grading, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage of composite industrial by-product gypsum used as cement retarders. This document applies to by-products (fluorite gypsum, desulfurization gypsum, phosphogypsum, titanium gypsum, boron gypsum, molding gypsum, salt gypsum, and citric acid slag) discharged from industrial production, with calcium sulfate as the main component. A small amount of calcium oxide or calcium hydroxide is added to adjust the pH value to 6.0–9.0. After processing, these products are used to adjust the setting time of cement and for other related industrial purposes.