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ISO/PRF 25121

Light olefins for industrial use — Determination of trace sulfur — Ultraviolet fluorescence method

General information

50.00     Jun 17, 2026

ISO

ISO/TC 47

International Standard

71.040.40     71.080.10  

Scope

This document specifies a ultraviolet fluorescence method for the determination of trace sulfur in light olefins.
This document is applicable to the determination of sulfur in ethylene, propylene, butadiene and other C4 olefins. The detection range for sulfur is from 0,2 mg/kg to 100 mg/kg.

Life cycle

NOW

PROJECT
ISO/PRF 25121
50.00 Final text received or FDIS registered for formal approval
Jun 17, 2026