ISO 21135:2024

Norme
internationale
ISO
21135
IULTCS
IUC 442
Première édition
Produits chimiques pour
2024-05
l’industrie du tannage du cuir —
Détermination de la teneur totale
en certains bisphénols
Chemicals for the leather tanning industry — Determination of
the total content of certain bisphenols
Numéros de référence
ISO 21135:2024(fr)
IULTCS/IUC 442:2024(fr) © ISO 2024

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ISO 21135:2024(fr)
IULTCS/IUC 442:2024(fr)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2024
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse

© ISO 2024 – Tous droits réservés
ii

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ISO 21135:2024(fr)
IULTCS/IUC 442:2024(fr)
Sommaire Page
Avant propos .iv
Introduction .v
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 1
4 Principe. 1
5 Appareillage . 1
6 Réactifs . 2
7 Échantillonnage et préparation de l’échantillon . 4
8 Mode opératoire . 4
8.1 Extraction .4
8.2 Analyse instrumentale .4
9 Expression des résultats . 4
9.1 Calcul en l’absence d’étalon interne .4
9.2 Calcul en présence d’étalon interne .5
9.3 Calcul des résultats sous forme de somme .5
10 Fidélité .
...

FINAL DRAFT
International
Standard
ISO/FDIS 21135
IULTCS
IUC 442
IULTCS
Chemicals for the leather tanning
Voting begins on:
industry — Determination of the
2024-02-16
total content of certain bisphenols
Voting terminates on:
2024-04-12
Produits chimiques pour l’industrie du tannage du cuir —
Détermination de la teneur totale en certains bisphénols
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference numbers
ISO/FDIS 21135:2024(en)
IULTCS/IUC 442:2024(en) © ISO 2024

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FINAL DRAFT
ISO/FDIS 21135:2024(en)
International
Standard
ISO/FDIS 21135
IULTCS
IUC 442
IULTCS
Chemicals for the leather tanning
Voting begins on:
industry — Determination of the
total content of certain bisphenols
Voting terminates on:
Produits chimiques pour l’industrie du tannage du cuir —
Détermination de la teneur totale en certains bisphénols
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
COPYRIGHT PROTECTED DOCUMENT
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2024
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Reference numbers
Published in Switzerland ISO/FDIS 21135:2024(en)
IULTCS/IUC 442:2024(en) © ISO 2024

© ISO 2024 – All rights reserved
ii

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ISO/FDIS 21135:2024(en)
IULTCS/IUC 442:2024(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
6 Reagents . 2
7 Sampling and sample preparation . 3
8 Procedure .
...

2024-01-19
ISO/DIS FDIS 21135
:2023(E)
IULTCS/IUC 442:2023(E)
Secretariat: ISO IULTCS
Date: 2024-02-01
Chemicals for the leather tanning industry — Determination of the
total content of certain bisphenols
Produits chimiques pour l'industriel’industrie du tannage du cuir — Détermination de la teneur totale en
certains bisphénols
FDIS stage

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ISO/DIS FDIS 21135:2023(E)
IULTCS/IUC 442:2023(E2024(en)
© ISO 2023 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
© ISO 2023 2024 – All rights reserved

ii

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ISO/DIS FDIS 21135:2023(E)
IULTCS/IUC 442:2023(E2024(en)
Contents
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 1
6 Reagents . 2
7 Sampling and sample preparation . 3
8 Procedure . 4
8.1 Extraction . 4
8.2 Instrumental analysis . 4
9 Expression of results . 4
9.1 Calculation without internal standard . 4
9.2 Calculation with internal standard . 4
9.3 Calculation of the results as a sum . 5
10 Precision . 5
11 Test report . 5
Annex A (informative) Chromatographic analysis operating parameters for LC-MS/MS . 7
A.1 Preliminary comment .
...