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Standard ČSN EN ISO 21135 1.11.2024 preview

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ČSN EN ISO 21135 (793897)

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

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STANDARD published on 1.11.2024


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The information about the standard:

Designation standards: ČSN EN ISO 21135
Classification mark: 793897
Catalog number: 519949
Publication date standards: 1.11.2024
SKU: NS-1203266
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

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Leather and furs

Annotation of standard text ČSN EN ISO 21135 (793897):

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

Preview of the standard ČSN EN ISO 21135 (793897)

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Latest update: 2025-07-01 (Number of items: 2 206 436)
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