EN ISO 24443:2021/prA1

Cosmetics - Determination of sunscreen UVA photoprotection in vitro - Amendment 1 (ISO 24443:2021/DAM 1:2025)

Kosmetische Mittel - In-vitro-Bestimmung des UVA-Schutzes von Sonnenschutzmitteln - Änderung 1 (ISO 24443:2021/DAM 1:2025)

Cosmétiques - Détermination in vitro de la photoprotection des produits de protection solaire aux UVA - Amendement 1 (ISO 24443:2021/DAM 1:2025)

Kozmetika - Določevanje zaščitnega faktorja UVA in vitro - Dopolnilo A1 (ISO 24443:2021/DAM 1:2025)

General Information

• Status: Not Published
• Publication Date: 29-Nov-2026
• ICS: 11.100.10 - In vitro diagnostic test systems
• ICS: 71.100.70 - Cosmetics. Toiletries
• Technical Committee: CEN/TC 392 - Cosmetics
• Drafting Committee: CEN/TC 392 - Cosmetics
• Current Stage: 4020 - Submission to enquiry - Enquiry
• Start Date: 08-May-2025
• Completion Date: 08-May-2025
• Ref Project: SIST EN ISO 24443:2022/oprA1:2025 - Cosmetics - Determination of sunscreen UVA photoprotection in vitro - Amendment 1 (ISO 24443:2021/DAM 1:2025)

Relations

• Amends: EN ISO 24443:2021 - Cosmetics - Determination of sunscreen UVA photoprotection in vitro (ISO 24443:2021, Corrected version 2022-02)
• Effective Date: 25-Dec-2024

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2025
Kozmetika - Določevanje zaščitnega faktorja UVA in vitro - Dopolnilo A1 (ISO
24443:2021/DAM 1:2025)
Cosmetics - Determination of sunscreen UVA photoprotection in vitro - Amendment 1
(ISO 24443:2021/DAM 1:2025)
Kosmetische Mittel - In-vitro-Bestimmung des UVA-Schutzes von Sonnenschutzmitteln -
Änderung 1 (ISO 24443:2021/DAM 1:2025)
Cosmétiques - Détermination in vitro de la photoprotection des produits de protection
solaire aux UVA - Amendement 1 (ISO 24443:2021/DAM 1:2025)
Ta slovenski standard je istoveten z: EN ISO 24443:2021/prA1
ICS:
71.100.70 Kozmetika. Toaletni Cosmetics. Toiletries
pripomočki
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
Amendment
ISO 24443:2021/
DAM 1
ISO/TC 217
Cosmetics — Determination of
Secretariat: INSO
sunscreen UVA photoprotection in
vitro
Voting begins on:
2025-05-05
AMENDMENT 1
Voting terminates on:
2025-07-28
Cosmétiques — Détermination in vitro de la photoprotection UVA
AMENDEMENT 1
ICS: 71.100.70
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 24443:2021/DAM 1:2025(en)
DRAFT
ISO 24443:2021/DAM 1:2025(en)
Amendment
ISO 24443:2021/
DAM 1
ISO/TC 217
Cosmetics — Determination of
Secretariat: INSO
sunscreen UVA photoprotection
in vitro
Voting begins on:
AMENDMENT 1
Voting terminates on:
Cosmétiques — Détermination in vitro de la photoprotection UVA
AMENDEMENT 1
ICS: 71.100.70
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 2025
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 24443:2021/DAM 1:2025(en)
ii
ISO 24443:2021/DAM 1:2025(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 217 Cosmetics, in collaboration with the
European Committee for Standardization (CEN) Technical Committee CEN/TC 392, Cosmetics, in accordance
with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the second edition (ISO 24443:2021), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— The temperature range has been clarified and revised,
— The plate use has been revised,
— The mechanical spreading has been clarified,
— The Rdq parameter of the sandblasted PMMA plate has been revised.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iii
ISO 24443:2021/DAM 1:2025(en)
Cosmetics — Determination of sunscreen UVA
photoprotection in vitro
AMENDMENT 1
Page 5, section 5.6
Add the phrase “Product should be stored, in the dark, between 27 (±2 °C) and 32 (±2 °C) for at least twelve
hours before the start of the test.”.
Add the phrase “The surface of sandblasted plates should be cleaned with a dry, antistatic microfibre cloth.”.
Add the phrase “The plates should be handled carefully by holding them by the edges, avoiding finger contact
with the surface. A reference mark should be made on each plate to ensure the whole measurement process
proceeds in the same order and direction each time. The plates shall be used without additional treatment
on surface (chemical and/or physical). The plates shall be used only once.”
5.6 Substrate/plate
The substrate/plate is the material to which the test product is to be applied. For this method, PMMA
plates with one rough side of the substrate shall be used and are commercially available. The size of the
substrate should be chosen such that the application area is not less than 16 cm².
The specifications and preparation of this type of plate[17][18] are described in Annex D.
Product should be stored, in the dark, between 27 (±2 °C) and 32
...