T/ZHLSSH 001-2023 Active Group standards

T/ZHLSSH 001-2023 Recycle Diethylene 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 001-2023

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 packaging, marking, transportation, and storage for recycled diethylene glycol. This document applies to recycled diethylene glycol extracted from polyethylene glycol, a by-product of ethylene oxide production, which is mainly used in the production of unsaturated polyester resins. Molecular formula: C4H10O3 Molecular weight: 106.12 (based on the 2021 International Atomic Mass Table) Molecular structure formula: OH-CH2-CH2-O-CH2-CH2-OH; Main technical content: No. Item Requirements 1 Appearance: Colorless or yellow transparent liquid, free from mechanical impurities. 2 pH value: 8–10. 3 Color (Pt-Co color number): ≤50. 4 Density (at 20°C): 1.115–1.1175 g/cm3. 5 Moisture content (% by mass): ≤0.15. 6 Glycol + triethylene glycol (% by mass): ≤2.00. 7 Diethylene glycol (% by mass): ≥97.00.