ISO 10349-6:1992
(Main)Photography — Photographic-grade chemicals — Test methods — Part 6: Determination of halide content
Photography — Photographic-grade chemicals — Test methods — Part 6: Determination of halide content
The method is based on weighing the test portion, dissolution in water, transfer of a 20 ml aliquot in a beaker, pipetting halide standard A or B into a second beaker, adding nitric acid solution plus silver nitrate solution to each beaker, dilution with water, transfer of the treated solutions into separate Nessler colour-comparison cylinders, and observing the turbidity of the two solutions.
Photographie — Produits chimiques de qualité photographique — Méthodes d'essai — Partie 6: Détermination de la teneur en halogénures
General Information
Standards Content (Sample)
INTERNATIONAL
IS0
STANDARD
10349-6
First edition
1992-l 2-15
- Photographic-grade
Photography
chemicals - Test methods -
Part 6:
Determination of halide content
- Produits chimiques de qua/it& photographique -
Photographie
Mbthodes d’essai -
Partie 6: Dbermination de la teneur en halog&ures
Reference number
IS0 10349-6:1992(E)
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IS0 10349=6:1992(E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
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. IS0
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 IS0 10349-6 was prepared by Technical Committee
lSO/TC 42, Photography.
IS0 10349 consists of the following parts, under the general title Pho-
tography - Photographic-grade chemicals - Test methods:
- Part 1: General
- Part 2: Determination of matter insoluble in water
- 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: Determination of halide content
- Part 7: Determination of alkalinity or acidity
- Part 8: Determination of volatile matter
- Part 9: Reaction to ammoniacal silver nitrate
- Part ? 0: Determination of sulfide con tent
0 IS0 1992
All rights reserved. No part of this publication may be reproduced or utilized in any form or
by any means, electronic or mechanical, including photocopying and microfilm, without per-
mission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
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IS0 10349=6:1992(E)
- Part I I: Determination of specific gravity
- Part 12: Determination of density
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INTERNATIONAL STANDARD
IS0 10349=6:1992(E)
Photography - Photographic-grade chemicals
- Test
methods -
Part 6:
Determination of halide content
4 Reagents
1 Scope
This part of IS0 10349 specifies a general test
See IS0 10349- 1 for general requirements.
method for the determination of the halide content
(reported as chloride ions, Cl-) of photographic-grade
chemicals.
4.1 Halide standard solutions
NOTE 1 Individual International Standards may report the
halide as a salt by modifying the calculation.
Prepare halide standard solution A and/or halide stan-
dard solution B as required for the test limits (see ta-
ble I).
2 Normative reference
4.1.1 Halide standard solution A, 0,Ol mg Cl/ml.
The following standard contains provisions which,
through reference in this text, constitute provisions
Dissolve I,65 g of sodium chloride, which ha
...
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