ISO 10349-9:1992
(Main)Photography — Photographic-grade chemicals — Test methods — Part 9: Reaction to ammoniacal silver nitrate
Photography — Photographic-grade chemicals — Test methods — Part 9: Reaction to ammoniacal silver nitrate
The method is based on weighing a test portion, dissolving it in water, transfer of the solution to each of two Nessler colour-comparison cylinders, preparing a test solution by adding freshly prepared ammoniacal silver nitrate solution to one of the Nessler cylinders and mixing well, preparing a blank solution by adding ammonium hydroxide solution and water to the other Nessler cylinder and mixing well, allowing the solutions to stand for 2 min, and comparing the colour and turbidity of the two solutions.
Photographie — Produits chimiques de qualité photographique — Méthodes d'essai — Partie 9: Réaction au nitrate d'argent ammoniacal
General Information
Standards Content (Sample)
INTERNATIONAL
ISO
STANDARD
10349-9
First edition
19924 2-l 5
Photography - Photographit-grade
chemicals - Test methods -
Part 9:
Reaction to ammoniacal silver nitrate
Photographie - Produits chimiques de qualitk photographique -
Methodes d ’essai -
Partie 9: R6action au nitra te d ’argen t ammoniacal
Reference number
ISO 10349-9:1992(E)
---------------------- Page: 1 ----------------------
ISO 10349=9:1992(E)
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. Esch 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.
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.
International Standard ISO 10349-9 was prepared by Technical Committee
lSO/TC 42, Photography.
ISO 10349 consists of the following Parts, under the general title Pho-
tography - Photographit-grade chemicals - Test methods:
- Part 1: General
- Part 2: Determination of matter insoluble in wa ter
- Part 3: Determination of matter insoluble in ammonium hydroxide
Solution
- Part 4: Determination of residue after ignition
- Part 5: Determination of heavy metals and iron content
- Part 6: De fermination of halide tonten t
- Part 7: Determination of alkalinity or acidity
- Part 8: Determination of vola tile matter
- Part 9: Reaction to ammoniacal silver nitrate
- Part 10: Determination of sulfide con tent
0 ISO 1992
All rights reserved. No part. of this publication may be reproduced or utilized in any form or
by any means, electronie or mechanical, including photocopying and microfilm, without per-
mission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
ii
---------------------- Page: 2 ----------------------
ISO 10349=9:1992(E)
- Part 11: Determination of specific gravity
- Part 12: Determination of density
---------------------- Page: 3 ----------------------
This page intentionally left blank
---------------------- Page: 4 ----------------------
INTERNATIONAL STANDARD ISO 10349=9:1992(E)
- Photographit-grade chemicals - Test
Photography
methods -
Part 9:
Reaction to ammoniacal silver nitrate
4 Reagents
1 Scope
See ISO 10349-1 for general requirements.
This part of ISO 10349 specifies a general test
method for the determination of the reaction to am-
moniacal silver nitrate, for photographit-
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.