EN ISO 8980-3:2022/prA1

Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods - Amendment 1 (ISO 8980 3:2022/DAM 1:2025)

Augenoptik - Rohkantige fertige Brillengläser - Teil 3: Transmissionsanforderungen und Prüfverfahren - Änderung 1 (ISO 8980 3:2022/DAM 1:2025)

Optique ophtalmique - Verres de lunettes finis non détourés - Partie 3: Spécifications relatives au facteur de transmission et méthodes d'essai - Amendement 1 (ISO 8980 3:2022/DAM 1:2025)

Očesna optika - Nebrušena zglajena stekla očal - 3. del: Specifikacije za prepustnost in preskusne metode - Dopolnilo A1 (ISO 8980 3:2022/DAM 1:2025)

General Information

• Status: Not Published
• Publication Date: 15-Nov-2026
• ICS: 11.040.70 - Ophthalmic equipment
• Technical Committee: CEN/TC 170 - Ophthalmic optics
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 11-Jul-2025
• Completion Date: 11-Jul-2025
• Ref Project: SIST EN ISO 8980-3:2022/oprA1:2025 - Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods - Amendment 1 (ISO 8980 3:2022/DAM 1:2025)

Relations

• Amends: EN ISO 8980-3:2022 - Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods (ISO 8980-3:2022)
• Effective Date: 19-Jul-2023

Overview

EN ISO 8980-3:2022/prA1 (Amendment 1 to ISO 8980-3:2022) updates transmittance requirements and test methods for uncut, unmounted finished spectacle lenses. The amendment clarifies claims handling, tightens measurement uncertainty limits, and adds explicit requirements and instrument specifications for wavelength-cut claims and UV attenuation performance. The document is circulated as a draft amendment (ISO 8980-3:2022/DAM 1:2025) and aligns with ISO/CEN parallel processing.

Key Topics

• Scope change: The scope sentence is amended to cover both requirements and claims for transmittance properties of uncut and unmounted finished spectacle lenses, including attenuation of solar radiation.

• Wavelength-cut claims (new 6.7):

  • For a nominated wavelength cut, spectral transmittance must be < 5.0% at that wavelength.
  • Spectral transmittance must be < 1.0% for all wavelengths from 280 nm up to (nominated wavelength − 10 nm).
  • The claimed performance must remain satisfied after the UV irradiation procedure specified in clause 7.7.

• Measurement uncertainty (new 7.2.1):

  • Absolute uncertainty ≤ 2.0% for spectral transmittance > 20%.
  • Absolute uncertainty ≤ 1.0% for spectral transmittance in the range ≤ 20% and ≥ 5%.
  • Absolute uncertainty ≤ 0.5% for spectral transmittance < 5%.
  • All at a 95% confidence level.

• Instrument and method requirements for wavelength-cut claims (7.2.2):

  • Measurement device relative uncertainty ≤ 10% and wavelength uncertainty within ±1.0 nm.
  • Spectral resolution ≤ 1 nm; spectral bandwidth (FWHM) ≤ 2 nm.
  • Measurement range: 280 nm to 780 nm.
  • Use a plano lens of 2 mm thickness as reference (state thickness if different), measure at the reference point with the incident beam normal to the front surface.

• Annex G (informative): Describes effects of lens geometry and instrument factors on wavelength-cut measurement. Notes that thickness changes can shift cut-off by approx. 3–5 nm per 1 mm and bandwidth changes can shift cut-off (example: ~1 nm shift when moving from 2 nm to 5 nm bandwidth).

Applications

• Quality control and acceptance testing for spectacle lens production.
• Verifying and supporting marketing claims (wavelength-cut and UV protection).
• Research and development for lens materials and coatings where spectral cut-off is critical.
• Conformity assessment and compliance with national regulations when referenced.

Related Standards

• ISO 8980-3:2022 (base standard, Part 3)
• ISO 8980-3:2022/DAM 1:2025 (this amendment draft)
• ISO/IEC Guide 98-3 (evaluation of measurement uncertainty)
• ISO 18526-2:2020 (advice on measurement uncertainty for lenses)

Keywords: EN ISO 8980-3:2022/prA1, transmittance, wavelength cut, spectacle lenses, spectrophotometer, UV attenuation, measurement uncertainty.

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2025
Očesna optika - Nebrušena zglajena stekla očal - 3. del: Specifikacije za
prepustnost in preskusne metode - Dopolnilo A1 (ISO 8980 3:2022/DAM 1:2025)
Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance
specifications and test methods - Amendment 1 (ISO 8980 3:2022/DAM 1:2025)
Augenoptik - Rohkantige fertige Brillengläser - Teil 3: Transmissionsanforderungen und
Prüfverfahren - Änderung 1 (ISO 8980 3:2022/DAM 1:2025)
Optique ophtalmique - Verres de lunettes finis non détourés - Partie 3: Spécifications
relatives au facteur de transmission et méthodes d'essai - Amendement 1 (ISO 8980
3:2022/DAM 1:2025)
Ta slovenski standard je istoveten z: EN ISO 8980-3:2022/prA1
ICS:
11.040.70 Oftalmološka oprema Ophthalmic equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
Amendment
ISO 8980-3:2022/
DAM 1
ISO/TC 172/SC 7
Ophthalmic optics — Uncut finished
Secretariat: DIN
spectacle lenses —
Voting begins on:
Part 3:
2025-04-18
Transmittance specifications and
Voting terminates on:
test methods 2025-07-11
AMENDMENT 1
Optique ophtalmique — Verres de lunettes finis non détourés —
Partie 3: Spécifications relatives au facteur de transmission et
méthodes d'essai
AMENDEMENT 1
ICS: 11.040.70
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 8980-3:2022/DAM 1:2025(en)

DRAFT
ISO 8980-3:2022/DAM 1:2025(en)
Amendment
ISO 8980-3:2022/
DAM 1
ISO/TC 172/SC 7
Ophthalmic optics — Uncut finished
Secretariat: DIN
spectacle lenses —
Voting begins on:
Part 3:
Transmittance specifications and
Voting terminates on:
test methods
AMENDMENT 1
Optique ophtalmique — Verres de lunettes finis non détourés —
Partie 3: Spécifications relatives au facteur de transmission et
méthodes d'essai
AMENDEMENT 1
ICS: 11.040.70
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 8980-3:2022/DAM 1:2025(en)

ii
ISO 8980-3:2022/DAM 1:2025(en)
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