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ISO 21135:2024

Chemicals for the leather tanning industry — Determination of the total content of certain bisphenols

General information

Valid from 15.05.2024
Directives or regulations
None

Standard history

Status
Date
Type
Name
15.05.2024
Main
This document specifies a method for determining the total content (solvent extractable) of the following bisphenols in chemicals for the leather tanning industry:
—     bisphenol A;
—     bisphenol AF;
—     bisphenol B;
—     bisphenol F;
—     bisphenol S.
This method requires the use of liquid chromatography (LC) with either a single quadrupole mass spectrometer (MS), a triple quadrupole mass spectrometer (MS/MS), an ultraviolet (UV) detector, a diode array detector (DAD) or a fluorescence detector (FLD) to identify and quantify the bisphenols.
NOTE 1        This method can also be used for other bisphenols if they are validated by the laboratory.
NOTE 2        Bisphenol S cannot be detected with FLD.

Required fields are indicated with *

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