SIST EN ISO 7012-2:2025

Paints and varnishes - Determination of preservatives in water-dilutable coating materials - Part 2: Determination of in-can total formaldehyde (ISO 7012-2:2025)

This document specifies the apparatus and the analytical methods for determining the in-can total formaldehyde content in water-dilutable coating materials, where the main sources of formaldehyde are in-can preservatives.
This document is also applicable to polymer dispersions.

Beschichtungsstoffe - Bestimmung der Konservierungsmittel in wasserverdünnbaren Beschichtungsstoffen - Teil 2: Bestimmung des Gesamtformaldehyds im Gebinde (ISO 7012-2:2025)

Dieses Dokument legt die Geräte und analytischen Verfahren zur Bestimmung des Gesamtformaldehydgehaltes im Gebinde (In-can-Gesamtformaldehyd) in wasserverdünnbaren Beschichtungsstoffen fest, bei denen die Hauptquellen für Formaldehyd Topfkonservierungsmittel sind.
Dieses Dokument ist auch auf Polymerdispersionen anwendbar.

Peintures et vernis - Dosage des agents de préservation dans les produits de peinture diluables à l’eau - Partie 2: Dosage du formaldéhyde total en pot (ISO 7012-2:2025)

Le présent document spécifie l’appareillage et les méthodes d’analyse pour déterminer la teneur de formaldéhyde total en pot dans des produits de peinture diluables à l’eau, où les principales sources de formaldéhyde sont les agents de préservation en pot.
Le présent document est également applicable aux dispersions polymères.

Barve in laki - Določanje konzervansov v premazih, topnih v vodi - 2. del: Določanje celotnega formaldehida v pločevinki/posodi (ISO 7012-2:2025)

General Information

• Status: Not Published
• Public Enquiry End Date: 01-Jun-2024
• ICS: 87.040 - Paints and varnishes
• Technical Committee: IBLP - Paints and varnishes
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 29-Apr-2025
• Due Date: 04-Jul-2025
• Ref Project: EN ISO 7012-2:2025 - Paints and varnishes - Determination of preservatives in water-dilutable coating materials - Part 2: Determination of in-can total formaldehyde (ISO 7012-2:2025)

Standards Content (Sample)

SLOVENSKI STANDARD
oSIST prEN ISO 7012-2:2024
01-maj-2024
Barve in laki - Določanje konzervansov v premazih, topnih v vodi - 2. del:
Določanje celotnega formaldehida v pločevinki/posodi (ISO/DIS 7012-2:2024)
Paints and varnishes - Determination of preservatives in water-dilutable coating
materials - Part 2: Determination of in-can total formaldehyde (ISO/DIS 7012-2:2024)
Beschichtungsstoffe - Bestimmung der Konservierungsmittel in wasserverdünnbaren
Beschichtungsstoffen - Teil 2: Bestimmung des Gesamtformaldehyds im Gebinde
(ISO/DIS 7012-2:2024)
Peintures et vernis - Dosage des agents de préservation dans les produits de peinture
diluables à l’eau - Partie 2: Dosage du formaldéhyde total en pot (ISO/DIS 7012-2:2024)
Ta slovenski standard je istoveten z: prEN ISO 7012-2
ICS:
87.040 Barve in laki Paints and varnishes
oSIST prEN ISO 7012-2:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN ISO 7012-2:2024
oSIST prEN ISO 7012-2:2024
DRAFT
International
Standard
ISO/DIS 7012-2
ISO/TC 35/SC 16
Paints and varnishes —
Secretariat: DIN
Determination of preservatives in
Voting begins on:
water-dilutable coating materials —
2024-03-14
Part 2:
Voting terminates on:
2024-06-06
Determination of in-can total
formaldehyde
ICS: 87.040
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
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 SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 7012-2:2024(en)
oSIST prEN ISO 7012-2:2024
DRAFT
ISO/DIS 7012-2:2024(en)
International
Standard
ISO/DIS 7012-2
ISO/TC 35/SC 16
Paints and varnishes —
Secretariat: DIN
Determination of preservatives in
Voting begins on:
water-dilutable coating materials —
Part 2:
Voting terminates on:
Determination of in-can total
formaldehyde
ICS: 87.040
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2024
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: [phone]
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 7012-2:2024(en)
ii
oSIST prEN ISO 7012-2:2024
ISO/DIS 7012-2:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 3
4.1 General .3
4.2 Acidic water-steam-distillation .3
4.2.1 Derivatisation with Chromotropic acid (CHRA) .3
5 Apparatus . 3
6 Reagents and materials . 4
6.1 General .4
6.2 Reagents for derivatisation with CHRA .4
6.3 Reagents for titration of formaldehyde standard .4
7 Procedure . 5
7.1 Sampling .5
7.2 Distillation .5
7.3 Derivatization using the chromotropic acid procedure .5
7.4 Calibration .5
7.5 Analysis .5
7.5.1 Analysis of the calibration solution .5
7.5.2 Sample measurement .6
7.6 Calculation of in-can total formaldehyde content .7
8 Precision . 7
8.1 General .7
8.2 Repeatability limit r .7
8.3 Reproducibility limit R .8
9 Test report . 8
Annex A (normative)  . 9
Annex B (normative) Results of the interlaboratory test .11

iii
oSIST prEN ISO 7012-2:2024
ISO/DIS 7012-2:2024(en)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out through
ISO technical committees. Each member body interested in a subject for which a technical committee
has been established has the right to be represented on that committee. International organizations,
governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely
with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types
of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the
ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 16,
Chemical analysis.
iv
oSIST prEN ISO 7012-2:2024
DRAFT International Standard ISO/DIS 7012-2:2024(en)
Paints and varnishes — Determination of preservatives in
water-dilutable coating materials —
Part 2:
Determination of in-can total formaldehyde
1 Scope
The method describes the quantitative determination of the in-can total formaldehyde content in water-
dilutable coating materials. Main sources of formaldehyde are preservatives.
NOTE The standard is also applicable for polymer dispersions.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 1513, Paints and varnishes — Examination and preparation of test samples
ISO 3696, Water for analytical laboratory use — Specification and test methods
ISO 4618, Paints and varnishes — Vocabulary
ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling
ISO 7012-1, Paints and varnishes — Determination of preservatives in water-dilutable coating materials — Part
1: Photometric determination of in-can free formaldehyde content
ISO 7012-3, Paints and varnishes — Determination of preservatives in water-dilutable coating materials — Part
3: Determination of in-can content of isothiazolinones using HPLC/UV
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
ready for use
state of a product when it is mixed in accordance with the manufacturer’s instructions in the correct
proportions and thinned if required using the correct thinners so that it is ready for application by the
approved method
[SOURCE: ISO 11890-2:2013, 3.4]

oSIST prEN ISO 7012-2:2024
ISO/DIS 7012-2:2024(en)
3.2
in-can free formaldehyde content
concentration of formaldehyde in [mg/kg] which is available in the c
...