T/ZHLSSH 003-2023 Active Group standards

T/ZHLSSH 003-2023 Recycle ethylene glycol

Publish Date: 2023-07-26 Implement Date: 2023-08-01 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/ZHLSSH 003-2023

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Alcohols and ethers

Publish Date: 2023-07-26

Implement Date: 2023-08-01

Scope

Scope: This document specifies the technical requirements, test methods, inspection rules, and marking, packaging, transportation, and storage for the recovery of glycol. This document applies to the recovery and extraction of glycol from the by-products of ethylene oxide production, which is mainly used as a solvent, antifreeze, and raw material for unsaturated polyesters. Molecular formula: C2H6O2 Molecular weight: 62.069 (based on the 2021 International Atomic Mass Table) Molecular structure: HO-CH2-CH2-OH; Main technical contents: No. Item Requirements 1 Appearance: Colorless or yellow transparent liquid, free from mechanical impurities. 2 pH value: 8–10. 3 Density: 1.112–1.114. 4 Color (Pt-Co color number): ≤50. 5 Moisture, % (m/m): ≤0.15. 6 Glycol, % (m/m): ≥98.00. 7 Diethylene glycol, % (m/m): ≤1.5. 8 Iron content (mg/kg): ≤3.0. 9 Ash (mg/kg): ≤10.