T/ZHLSSH 002-2023 Active Group standards

T/ZHLSSH 002-2023 Recycle Triethylene 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 002-2023

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 the recycling of triethylene glycol. This document applies to triethylene glycol recovered and extracted from polyethylene glycol, a by-product of ethylene oxide production. Its main use is as a monomer for synthesizing unsaturated polyesters, and it is not suitable for use as a dehydrating agent, solvent, or plasticizer, etc. Molecular formula: C6H14O4 Molecular weight: 150.184 (based on the 2021 International Atomic Mass Table) Molecular structure: HO-CH2-CH2-O-CH2-CH2-O-CH2-CH2-OH; Main technical content: Item Requirements 1. Appearance: Colorless or yellow transparent liquid, free from mechanical impurities 2. pH value: 9–11 3. Triethylene glycol, % (m/m): ≥97.00 4. Color, Pt-Co color number: ≤120 5. Moisture, % (m/m): ≤0.30 6. Density: 1.120–1.130 g/cm³