GB/T 45372-2025 Active National standards

GB/T 45372-2025 Determination of phenols in liquid products from coal chemical industry—Comprehensive two dimensional gas chromatography-mass spectrometry/hydrogen flame ionization detector

Publish Date: 2025-02-28 Implement Date: 2025-09-01 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: GB/T 45372-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Generally, organic chemical raw materials

ICS Name: Phenol

Publish Date: 2025-02-28

Implement Date: 2025-09-01

Pages: 28 pages

Scope

This document describes the experimental method for determining phenolic compounds in coal-based liquid phase using full two-dimensional gas chromatography-mass spectrometry/hydrogen flame ionization detector.
This document is applicable to the determination of phenol, C1-phenol, C2-phenol, C3-phenol, diphenol, indanol, naphthol, and C1-naphthol in coal tar and coal coking wastewater with boiling points ≤360℃:
—— The detection limit of phenol in coal tar is 0.015%, and the detection limits of C1-phenol and C2-phenol are 0.035%, the detection limit of C3-phenol is 0.15%, and the detection limits of diphenol, indanol, naphthol, and C1-naphthol are 0.35%, all expressed as mass fractions;
—— The detection limit of phenol in coal coking wastewater is 1.5 mg/L, and the detection limits of C1-phenol and C2-phenol are 2.5 mg/L, the detection limit of C3-phenol is 5.0 mg/L, and the detection limits of diphenol, indanol, naphthol, and C1-naphthol are 15.0 mg/L.