SIST EN ISO 12312-1:2022/kprA1:2026

• Status: Not Published
• Public Enquiry End Date: 15-May-2025
• ICS: 11.040.70 - Ophthalmic equipment
• ICS: 13.340.20 - Head protective equipment
• Technical Committee: OVP - Personal protecting equipment
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 04-Feb-2026
• Due Date: 25-Mar-2026
• Completion Date: 02-Mar-2026
• Directive: 2016/425 - Regulation (EU) 2016/425 of the European Parliament and of the Council of 9 March 2016 on personal protective equipment and repealing Council Directive 89/686/EEC
• Mandate: M/571 - COMMISSION IMPLEMENTING DECISION of 19.11.2020 on a standardisation request to the European Committee for Standardization and the European Committee for Electrotechnical Standardization as regards personal protective equipment in support of Regulation (EU) 2016/425 of the European Parliament and of the Council
• Mandate: M/571 AMD 1 - Personal Protective Equipement
• Mandate: M/571 AMD 2 - COMMISSION IMPLEMENTING DECISION of 8.4.2026 amending Implementing Decision C(2020)7924 on a standardisation request to the European Committee for Standardization and the European Committee for Electrotechnical Standardization as regards personal protective equipment in support of Regulation (EU) 2016/425 of the European Parliament and of the Council
• Ref Project: EN ISO 12312-1:2022/A1:2026 - Eye and face protection - Sunglasses and related eyewear - Part 1: Sunglasses for general use - Amendment 1 (ISO 12312-1:2022/Amd 1:2026)

• Amends: SIST EN ISO 12312-1:2022 - Eye and face protection - Sunglasses and related eyewear - Part 1: Sunglasses for general use (ISO 12312-1:2022)
• Effective Date: 14-Aug-2024

SIST EN ISO 12312-1:2022/kprA1:2026 is CEN's Amendment 1 to EN ISO 12312-1:2022 for sunglasses and related eyewear for general use. It updates the test methods, default headforms, optical checks, robustness tests, and product information used for sunglasses intended for general use. Engineers, test labs, quality teams, and buyers can use it to apply the revised requirements to products, labels, and test reports.

What does SIST EN ISO 12312-1:2022/kprA1:2026 specify?

SIST EN ISO 12312-1:2022/kprA1:2026 specifies amendments to the general-use sunglasses standard rather than a full standalone technical specification. It revises the base document's references, measurement methods, test set-ups, labelling text, and annex material for electro-optical filters and replacement filters.

The amendment changes clauses 2, 4.4, 5.1, 5.3.1, 5.3.4.2, 5.3.5.1.1 and 5.3.5.1.2, 5.3.5.2.2 and 5.3.5.2.3, 6.3, 7.1 to 7.6, 11.1, 12.1 and 12.2, plus Annex B, Annex C and the Bibliography.

Part	What it covers
Annex B	Electro-optical filters, including photosensitive seizures, light detection, and reaction time testing
Annex C	Information and labelling for uncut and/or unmounted replacement filters

What are the key requirements of SIST EN ISO 12312-1:2022/kprA1:2026?

SIST EN ISO 12312-1:2022/kprA1:2026 mainly tightens how sunglasses are tested and how their claims are described. For users, the practical effect is clearer test geometry, clearer pass/fail criteria, and more specific labelling for filter type and special functions.

Test methods and headforms

Clause 2 replaces the test-method reference with ISO 12311:2023. That means conformity work now relies on the updated test-method standard for sunglasses and related eyewear.

Clause 4.4 sets default headforms when the manufacturer does not specify compatible ones in accordance with ISO 18526-4:2020. Adult's sunglasses use headform 1-M, while children's sunglasses use 1-C6 or 1-C12. In practice, labs need the same headform choice for repeatable fit and test results.

Clause 5.1 says transmittance values are determined according to ISO 18526-2:2020, Clauses 7, 8, 9 and 10. If the direction of measurement is not stated, it is normal to the sample surface at the geometrical centre. This matters because the reported light transmission depends on where and how the sample is measured.

Optical performance and special filter claims

Clause 5.3.1 revises the uniformity requirement for luminous transmittance. It covers uniformly tinted filters, gradient filters, mounted filters, and the difference between left and right lenses. The practical point is that tint variation and left-right mismatch are controlled, especially for products sold as uniform or gradient.

Clause 5.3.4.2 says claimed polarizing filters are tested to ISO 18526-2:2020, Clause 15. Clause 5.3.5.1.1, 5.3.5.1.2, 5.3.5.2.2 and 5.3.5.2.3 add calculation requirements from ISO 18526-2:2020. These updates tie stated optical values to named calculation procedures.

Mechanical performance, wear position, and user information

Clause 6.3 requires prism imbalance testing on the complete sunglass in the as-worn position according to ISO 18526-1:2020, 6.2. Clause 7 revises fracture, deformation, impact, endurance and perspiration checks for the frame and filters. In practice, these changes define how to judge breakage, permanent deformation, and resistance to wear-related exposure.

Clause 7.3 and 7.6 revise impact resistance criteria, and Clause 7.5 sets the perspiration resistance outcome for frame parts and contact areas. Clause 11.1 allows a manufacturer-specified interpupillary distance when a compatible headform is used. Clauses 12.1 and 12.2 update the information supplied with each pair of sunglasses, including the filter category symbol and/or verbal description.

Annex B adds material on photosensitive seizures for electro-optical filters and a schematic apparatus for reaction-time testing. Annex C updates information and labelling for uncut and/or unmounted replacement filters.

What terms does SIST EN ISO 12312-1:2022/kprA1:2026 define?

SIST EN ISO 12312-1:2022/kprA1:2026 uses a small set of terms that matter for testing and labelling.

• Headform - a specified dummy head used to position sunglasses consistently during fit and performance tests.
• Luminous transmittance - the amount of visible light that passes through the filter, which is the basis for tint and category checks.
• Gradient filter - a filter whose transmittance changes across its area, so the top and bottom of the lens are not equally tinted.
• Electro-optical filter - a sunglass filter that changes its state electronically, including the darkened state addressed in Annex B.
• Prism imbalance (relative prism error) - the difference in prismatic effect between the two eyes, which can affect visual comfort and alignment.
• As-worn position - the position of the complete sunglass as it is worn, used for testing prism imbalance and related fit-dependent checks.
• Interpupillary distance - the distance between the centres of the pupils, used here to set the test geometry on a headform.

Who uses SIST EN ISO 12312-1:2022/kprA1:2026?

SIST EN ISO 12312-1:2022/kprA1:2026 is used by sunglass manufacturers, test laboratories, quality managers, and certification or regulatory teams. It is also relevant to purchasers and specifiers who need to check what test method, labelling, and performance claims apply to a product.

In practice, these groups use it for product design, sample testing, conformity assessment, technical file preparation, and reviewing claim wording such as polarizing, electro-optical, or replacement-filter information.

What changed in SIST EN ISO 12312-1:2022/kprA1:2026 from the previous edition?

SIST EN ISO 12312-1:2022/kprA1:2026 updates the base standard by replacing the test-method reference with ISO 12311:2023, revising default headforms, and aligning transmittance, uniformity, and calculation rules with the ISO 18526 series. It also revises prism imbalance, fracture and impact language, frame deformation limits, endurance and perspiration provisions, coverage-area wording, and product information requirements.

The amendment moves the photosensitive-seizure material into Annex B, adds reaction-time test wording and a schematic figure, updates Annex C for uncut and/or unmounted replacement filters, and replaces the bibliography reference with ISO 9241-391:2016.

Which standards are used with SIST EN ISO 12312-1:2022/kprA1:2026?

SIST EN ISO 12312-1:2022/kprA1:2026 relies on several companion standards for the detailed test methods.

• ISO 12311:2023 - provides the test methods for sunglasses and related eyewear.
• ISO 18526-1:2020 - provides the as-worn testing method used for prism imbalance.
• ISO 18526-2:2020 - provides transmittance, polarizing, calculation, and reaction-time-related test clauses referenced in the amendment.
• ISO 18526-3:2020 - provides visual inspection conditions and inspection-based checks used for uniformity and some durability assessments.
• ISO 18526-4:2020 - provides the headforms referenced for adult's and children's sunglasses.
• ISO 9241-391:2016 - is cited for photosensitive seizures in Annex B and the Bibliography.

What does the SIST EN ISO 12312-1:2022/kprA1:2026 document contain?

SIST EN ISO 12312-1:2022/kprA1:2026 contains replacement text for a series of clauses in the base standard, not a full rewritten standard. It updates how transmittance is measured, how filter uniformity is judged, how impact and endurance are checked, and how the wearer position is used in testing.

It also contains updated instructions for what information must accompany sunglasses, including the filter category symbol and verbal description, plus extra guidance for electro-optical filters and replacement filters. Table 6 is referenced for category symbols and wording, and Figure B.2 gives a schematic apparatus for reaction-time testing.

SLOVENSKI STANDARD
SIST EN ISO 12312-1:2022/oprA1:2025
01-maj-2025
Varovanje oči in obraza - Sončna očala in sorodna oprema za varovanje oči - 1.
del: Sončna očala za splošno uporabo - Dopolnilo A1 (ISO 12312-1:2022/DAM
1:2025)
Eye and face protection - Sunglasses and related eyewear - Part 1: Sunglasses for
general use - Amendment 1 (ISO 12312-1:2022/DAM 1:2025)
Protection des yeux et du visage - Lunettes de soleil et articles de lunetterie associés -
Partie 1: Lunettes de soleil pour usage général - Amendement 1 (ISO 12312-
1:2022/DAM 1:2025)
Ta slovenski standard je istoveten z: EN ISO 12312-1:2022/prA1
ICS:
11.040.70 Oftalmološka oprema Ophthalmic equipment
13.340.20 Varovalna oprema za glavo Head protective equipment
SIST EN ISO 12312-1:2022/oprA1:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN ISO 12312-1:2022/oprA1:2025

SIST EN ISO 12312-1:2022/oprA1:2025
DRAFT
Amendment
ISO 12312-1:2022/
DAM 1
ISO/TC 94/SC 6
Eye and face protection —
Secretariat: BSI
Sunglasses and related eyewear —
Voting begins on:
Part 1:
2025-02-24
Sunglasses for general use
Voting terminates on:
2025-05-19
AMENDMENT 1
Protection des yeux et du visage — Lunettes de soleil et articles
de lunetterie associés —
Partie 1: Lunettes de soleil pour usage général
AMENDEMENT 1
ICS: 13.340.20
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 12312-1:2022/DAM 1:2025(en)

SIST EN ISO 12312-1:2022/oprA1:2025
DRAFT
ISO 12312-1:2022/DAM 1:2025(en)
Amendment
ISO 12312-1:2022/
DAM 1
ISO/TC 94/SC 6
Eye and face protection —
Secretariat: BSI
Sunglasses and related eyewear —
Voting begins on:
Part 1:
Sunglasses for general use
Voting terminates on:
AMENDMENT 1
Protection des yeux et du visage — Lunettes de soleil et articles
de lunetterie associés —
Partie 1: Lunettes de soleil pour usage général
AMENDEMENT 1
ICS: 13.340.20
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 12312-1:2022/DAM 1:2025(en)

ii
SIST EN ISO 12312-1:2022/oprA1:2025
ISO 12312-1:2022/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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
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.
Amendment 1 to ISO 12312-1:2022 was prepared by Technical Committee ISO/TC 94, Personal safety -
protective clothing and equipment, Subcommittee SC 6, and by Technical Committee CEN/TC 85, Eye protective
equipment in collaboration.
iii
SIST EN ISO 12312-1:2022/oprA1:2025

SIST EN ISO 12312-1:2022/oprA1:2025
ISO 12312-1:2022/DAM 1:2025(en)
Eye and face protection — Sunglasses and related eyewear —
Part 1:
Sunglasses for general use
AMENDMENT 1
2  Normative references
Delete paragraph 5 and substitute by the following:
“ISO 12311:2023, Personal protective equipment — Test methods for sunglasses and related eyewear”

4.4  Headforms
Delete the existing text and substitute by the following:
"Unless the manufacturer specifies the headform(s) in accordance with ISO 18526-4:2020 that is/
are compatible with the sunglasses, the test methods where (a) headform(s) is/are required shall use
the headform 1-M for adult's sunglasses and (1-C6) or (1-C12) for children's sunglasses as specified in
ISO 18526-4:2020 as the default”

5.1  Test methods
Delete the first paragraph and substitute by the following:
“Transmittance values shall be determined in accordance with ISO 18526-2:2020, Clauses 7, 8, 9 and 10. If
the direction of measurement is not specified, then the direction of measurement shall be normal to the
surface of the test sample at its geometrical centre.”

5.3.1  Uniformity of luminous transmittance
Delete the existing text and substitute by:
“Filters that are intended to be uniformly tinted shall appear to be visually uniform within a circle
(30 ± 1) mm diameter centred on the reference points and appear to have the same transmittance at the
two reference points when inspected against a white background in accordance with ISO 18526-3:2020, 6.6.
For gradient filters the luminous transmittances shall appear constant in the horizontal direction and have
equal transmittance at the reference points.
Where there is visible non-uniformity, or tilt in case of gradient filters, then, when tested according to
ISO 18526-2:2020, 7.4, the relative difference in the luminous transmittance value between any two points
of the filter within a circle (30 ± 1) mm in diameter centred on the reference point shall not be greater than
15 % (relative to the higher value), except for category 4 where it shall not be greater than 20 %. If a 5 mm
wide portion around the edge of the test sample intrudes into this circular area, then this intrusion shall be
excluded from testing.
The geometric or boxed centre takes the place of the reference point if this is not known.

SIST EN I
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