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CEN

CEN/TC 289/WG 6 - Test methods for tannery chemicals

to develop analytical methods for chemicals used in the tanning industry

Test methods for tannery chemicals

to develop analytical methods for chemicals used in the tanning industry

General Information

Status
Active
Work Field
Information technology
Parent
CEN/TC 289 - Leather
Standardization Organization
ICS
Directive
Mandate
50
CEN
EN ISO 23649:2025(Main)
Chemicals for the leather tanning industry - Determination of cyclosiloxanes (ISO 23649:2025)
SIST EN ISO 23649:2025

This document specifies a method for determining the total content of the following cyclosiloxanes in chemicals for the leather tanning industry:
—     octamethylcyclotetrasiloxane (D4);
—     decamethylcyclopentasiloxane (D5);
—     dodecamethylcyclohexasiloxane (D6);
This method requires the use of gas chromatography (GC) equipped with a single quadrupole mass spectrometer (MS) to identify and quantify the cyclosiloxanes.

  • Standard
    17 pages
    English language
    e-Library read for
    1 day
CEN
EN ISO 21135:2024(Main)
Chemicals for the leather tanning industry - Determination of the total content of certain bisphenols (ISO 21135:2024)
SIST EN ISO 21135:2024

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.

  • Standard
    21 pages
    English language
    e-Library read for
    1 day
CEN
EN ISO 14088:2020(Main)
Leather - Chemical tests - Quantitative analysis of tanning agents by filter method (ISO 14088:2020)
SIST EN ISO 14088:2020

This document specifies a test method for the determination of tanning agents through filtration of all vegetable and synthetic tanning products.

  • Standard
    17 pages
    English language
    e-Library read for
    1 day
  • Draft
    14 pages
    German language
    e-Library read for
    1 day
CEN
FprEN ISO 25712(Main)
Chemicals for the leather tanning industry - Determination of the total content of melamine (ISO/FDIS 25712:2026)
oSIST prEN ISO 25712:2025

This document specifies a method for the determination of melamine in chemicals used in the tanning industry

  • Draft
    16 pages
    English language
    e-Library read for
    1 day
50

Frequently Asked Questions

CEN/TC 289/WG 6 is a Working Group within the European Committee for Standardization (CEN). It is named "Test methods for tannery chemicals" and is responsible for: to develop analytical methods for chemicals used in the tanning industry This committee has published 4 standards.

CEN/TC 289/WG 6 develops CEN standards in the area of Information technology. The scope of work includes: to develop analytical methods for chemicals used in the tanning industry Currently, there are 4 published standards from this working group.

The European Committee for Standardization (CEN) is a public standards organization that brings together the national standardization bodies of 34 European countries. CEN provides a platform for developing European Standards (ENs) and other technical documents in relation to various products, materials, services, and processes, supporting the European Single Market.

A Working Group in CEN is a specialized group responsible for developing standards or technical work within a defined scope. These bodies bring together international experts to create consensus-based standards that support global trade, safety, and interoperability.