SIST ISO 18909:2023

Photography - Processed photographic colour films and paper prints - Methods for measuring image stability

This document describes test methods for determining the long-term dark storage stability of colour photographic images and the colour stability of such images when subjected to certain illuminants at specified temperatures and relative humidities.
This document is applicable to colour photographic images made with traditional, continuous-tone photographic materials with images formed with dyes. These images are generated with chromogenic, silver dye-bleach, dye transfer, and dye-diffusion-transfer instant systems. The tests have not been verified for evaluating the stability of colour images produced with dry- and liquid-toner electrophotography, thermal dye transfer (sometimes called dye sublimation), ink jet, pigment-gelatin systems, offset lithography, gravure and related colour imaging systems. If these reflection print materials, including silver halide (chromogenic), are digitally printed, refer to ISO 18936, ISO 18941, ISO 18946, and ISO 18949 for dark stability tests, and the ISO 18937 series for light stability tests.
This document does not include test procedures for the physical stability of images, supports or binder materials. However, it is recognized that in some instances, physical degradation such as support embrittlement, emulsion cracking or delamination of an image layer from its support, rather than image stability, will determine the useful life of a colour film or print material.

Photographie - Films et papiers photographiques couleur traités - Méthodes de mesure de la stabilité de l'image

Fotografija - Procesirani barvni fotografski filmi in papirni natisi - Metode za merjenje slikovne stabilnosti

Ta dokument opisuje preskusne metode za določanje dolgotrajne stabilnosti barvnih fotografskih slik pri shranjevanju v temi in barvno stabilnost takih slik pri izpostavitvi določenim svetilom pri določenih temperaturah in relativni vlagi.
Ta dokument se uporablja za barvne fotografske slike, narejene s tradicionalnimi fotografskimi materiali z neprekinjenim tonom s slikami, narejenimi z barvili. Te slike nastanejo s kromogenskimi sistemi, sistemi s srebrovim barvilom in belilom, sistemi s prenosom barvil in polaroidnimi sistemi z difuzijo in prenosom barvil. Preskusi niso preverjeni za vrednotenje stabilnosti barvnih slik, narejenih z elektrofotografijo s suhim in tekočim tonerjem, s sistemom s toplotnim prenosom barvil (včasih imenovanim sublimacija barvil), z brizgalnim tiskalnikom, s sistemom pigmentov in želatine, ofsetno litografijo, gravuro in podobnimi sistemi za barvno upodabljanje. Če so ti materiali za odsevni tisk, vključno s srebrovim halogenidom (kromogenski) natisnjeni digitalno, glej standarde ISO 18936, ISO 18941, ISO 18946 in ISO 18949 za preskuse stabilnosti v temi in serijo ISO 18937 za preskuse stabilnosti na svetlobi.
Ta dokument ne vključuje preskusnih postopkov za fizikalno stabilnost slik, podpor ali vezivnih materialov. Priznava pa se, da v nekaterih primerih fizikalna degradacija, kot je krhkost podpore, pokanje emulzije ali delaminacija plasti slike s podpore, bolj kot stabilnost slike določa življenjsko dobo barvnega filma ali materiala za tiskanje.

General Information

• Status: Published
• Publication Date: 20-Aug-2023
• ICS: 37.040.20 - Photographic paper, films and plates. Cartridges
• Technical Committee: GRT - Graphical technology
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 17-Jun-2023
• Due Date: 22-Aug-2023
• Completion Date: 21-Aug-2023
• Ref Project: ISO 18909:2022 - Photography — Processed photographic colour films and paper prints — Methods for measuring image stability

Relations

• Replaces: SIST ISO 18909:2011/Cor 1:2011 - Photography - Processed photographic colour films and paper prints - Methods for measuring image stability
• Effective Date: 01-Sep-2023
• Replaces: SIST ISO 18909:2011 - Photography - Processed photographic colour films and paper prints - Methods for measuring image stability
• Effective Date: 01-Sep-2023

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ISO 18909:2023
01-september-2023
Nadomešča:
SIST ISO 18909:2011
SIST ISO 18909:2011/Cor 1:2011
Fotografija - Procesirani barvni fotografski filmi in papirni natisi - Metode za
merjenje slikovne stabilnosti
Photography - Processed photographic colour films and paper prints - Methods for
measuring image stability
Photographie - Films et papiers photographiques couleur traités - Méthodes de mesure
de la stabilité de l'image
Ta slovenski standard je istoveten z: ISO 18909:2022
ICS:
37.040.20 Fotografski papir, filmi in Photographic paper, films
fotografske plošče. Filmski and plates. Cartridges
zvitki
SIST ISO 18909:2023 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST ISO 18909:2023

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SIST ISO 18909:2023
INTERNATIONAL ISO
STANDARD 18909
Second edition
2022-02
Photography — Processed
photographic colour films and paper
prints — Methods for measuring
image stability
Photographie — Films et papiers photographiques couleur traités —
Méthodes de mesure de la stabilité de l'image
Reference number
ISO 18909:2022(E)
© ISO 2022

---------------------- Page: 3 ----------------------
SIST ISO 18909:2023
ISO 18909:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2022 – All rights reserved

---------------------- Page: 4 ----------------------
SIST ISO 18909:2023
ISO 18909:2022(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test methods — General . 2
4.1 Sensitometric exposure . 2
4.2 Processing . 2
4.3 Densitometry . 3
4.4 Definition of density terms . . 3
4.5 Density values to be measured . 3
4.6 Method of correction of density measurements for d changes . 4
min
4.6.1 General . 4
4.6.2 Transmission density corrected for d . 7
min
4.6.3 Reflection density corrected for d .
...

INTERNATIONAL ISO
STANDARD 18909
Second edition
2022-02
Photography — Processed
photographic colour films and paper
prints — Methods for measuring
image stability
Photographie — Films et papiers photographiques couleur traités —
Méthodes de mesure de la stabilité de l'image
Reference number
ISO 18909:2022(E)
© ISO 2022

---------------------- Page: 1 ----------------------
ISO 18909:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 18909:2022(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test methods — General . 2
4.1 Sensitometric exposure . 2
4.2 Processing . 2
4.3 Densitometry . 3
4.4 Definition of density terms . . 3
4.5 Density values to be measured . 3
4.6 Method of correction of density measurements for d changes . 4
min
4.6.1 General . 4
4.6.2 Transmission density corrected for d . 7
min
4.6.3 Reflection density corrected for d . 7
min
4.6.4 Colour balance in a neutral density patch . 7
4.6.5 d changes . 7
min
4.6.6 d colour balance . 7
min
4.7 Computation of image-life parameters . 8
4.8 Effects of dye fading and stain formation on the printing quality of colour negative
images.
...

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 18909
ISO/TC 42
Photography — Processed
Secretariat: ANSI
photographic colour films and paper
Voting begins on:
2021-11-23 prints — Methods for measuring
image stability
Voting terminates on:
2022-01-18
Photographie — Films et papiers photographiques couleur traités —
Méthodes de mesure de la stabilité de l'image
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
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 18909:2021(E)
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. © ISO 2021

---------------------- Page: 1 ----------------------
ISO/FDIS 18909:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/FDIS 18909:2021(E)
Contents Page
Foreword .v
Introduction . vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Test methods — General . 2
4.1 Sensitometric exposure . 2
4.2 Processing . 2
4.3 Densitometry . 3
4.4 Definition of density terms . . 3
4.5 Density values to be measured . 3
4.6 Method of correction of density measurements for d changes . 4
min
4.6.1 General . 4
4.6.2 Transmission density corrected for d . 7
min
4.6.3 Reflection density corrected for d . 7
min
4.6.4 Colour balance in a neutral density patch . 7
4.6.5 d changes .
...