General methods of test for pigments - Part 19: Determination of water-soluble nitrates (Salicylic acid method) (ISO 787-19:2020)

EN-ISO 787-19 specifies a general method of test for determining the water-soluble nitrates in a sample of pigments by a spectrophotometric method using salicylic acid.ISO 787-13 specifies a method for determining the water-soluble nitrates in a sample of pigments using Nessler`s method.

Allgemeine Prüfverfahren für Pigmente und Füllstoffe - Teil 19: Bestimmung der wasserlöslichen Nitrate (Salicylsäure-Verfahren) (ISO 787-19:2020)

Dieses Dokument legt ein allgemeines Prüfverfahren zum Bestimmen der wasserlöslichen Nitrate in einer Pigmentprobe mit einem spektralphotometrischen Verfahren unter Verwendung von Salicylsäure fest.
ISO 787 13 legt ein Verfahren zur Bestimmung der wasserlöslichen Nitrate in einer Pigmentprobe nach dem Nessler-Verfahren fest.

Méthodes générales d'essais des pigments - Partie 19: Détermination des nitrates solubles dans l'eau (Méthode à l'acide salicylique) (ISO 787-19:2020)

Le présent document fixe une méthode générale d'essai pour déterminer les nitrates solubles dans l'eau dans un échantillon de pigments, par une méthode spectrophotométrique, en utilisant l'acide salicylique.
L'ISO 787-13 fixe une méthode pour déterminer les nitrates solubles dans l'eau dans un échantillon de pigments par la méthode de Nessler.

Splošne preskusne metode za pigmente in polnila - 19. del: Določevanje nitratov, topnih v vodi (metoda s salicilno kislino) (ISO 787-19:2020)

General Information

Status
Published
Public Enquiry End Date
19-Mar-2020
Publication Date
03-Jun-2020
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
22-May-2020
Due Date
27-Jul-2020
Completion Date
04-Jun-2020

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SLOVENSKI STANDARD
SIST EN ISO 787-19:2020
01-julij-2020
Nadomešča:
SIST EN ISO 787-19:1997
Splošne preskusne metode za pigmente in polnila - 19. del: Določevanje nitratov,
topnih v vodi (metoda s salicilno kislino) (ISO 787-19:2020)

General methods of test for pigments - Part 19: Determination of water-soluble nitrates

(Salicylic acid method) (ISO 787-19:2020)
Allgemeine Prüfverfahren für Pigmente und Füllstoffe - Teil 19: Bestimmung der
wasserlöslichen Nitrate (Salicylsäure-Verfahren) (ISO 787-19:2020)
Méthodes générales d'essais des pigments - Partie 19: Détermination des nitrates
solubles dans l'eau (Méthode à l'acide salicylique) (ISO 787-19:2020)
Ta slovenski standard je istoveten z: EN ISO 787-19:2020
ICS:
87.060.10 Pigmenti in polnila Pigments and extenders
SIST EN ISO 787-19:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 787-19:2020
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SIST EN ISO 787-19:2020
EN ISO 787-19
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2020
EUROPÄISCHE NORM
ICS 87.060.10 Supersedes EN ISO 787-19:1995
English Version
General methods of test for pigments - Part 19:
Determination of water-soluble nitrates (Salicylic acid
method) (ISO 787-19:2020)

Méthodes générales d'essais des pigments - Partie 19: Allgemeine Prüfverfahren für Pigmente und Füllstoffe -

Détermination des nitrates solubles dans l'eau Teil 19: Bestimmung der wasserlöslichen Nitrate

(Méthode à l'acide salicylique) (ISO 787-19:2020) (Salicylsäure-Verfahren) (ISO 787-19:2020)

This European Standard was approved by CEN on 25 April 2020.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 787-19:2020 E

worldwide for CEN national Members.
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SIST EN ISO 787-19:2020
EN ISO 787-19:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 787-19:2020
EN ISO 787-19:2020 (E)
European foreword

This document (EN ISO 787-19:2020) has been prepared by Technical Committee ISO/TC 256

"Pigments, dyestuffs and extenders" in collaboration with Technical Committee CEN/TC 298 “Pigments

and extenders” the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by October 2020, and conflicting national standards shall

be withdrawn at the latest by October 2020.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN ISO 787-19:1995.

According to the CEN-CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,

Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of

North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 787-19:2020 has been approved by CEN as EN ISO 787-19:2020 without any

modification.
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SIST EN ISO 787-19:2020
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SIST EN ISO 787-19:2020
INTERNATIONAL ISO
STANDARD 787-19
Second edition
2020-04
General methods of test for
pigments —
Part 19:
Determination of water-soluble
nitrates (Salicylic acid method)
Méthodes générales d'essais des pigments —
Partie 19: Détermination des nitrates solubles dans l'eau (Méthode à
l'acide salicylique)
Reference number
ISO 787-19:2020(E)
ISO 2020
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SIST EN ISO 787-19:2020
ISO 787-19:2020(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2020

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
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Phone: +41 22 749 01 11
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Email: copyright@iso.org
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Published in Switzerland
ii © ISO 2020 – All rights reserved
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SIST EN ISO 787-19:2020
ISO 787-19:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Principle ........................................................................................................................................................................................................................ 1

5 Reagents ........................................................................................................................................................................................................................ 1

6 Apparatus ..................................................................................................................................................................................................................... 2

7 Sampling ........................................................................................................................................................................................................................ 2

8 Preparation and calibration graph .................................................................................................................................................... 2

8.1 Standard solution I .............................................................................................................................................................................. 2

8.2 Standard solution II ............................................................................................................................................................................ 2

8.3 Construction of graph ....................................................................................................................................................................... 2

9 Procedure..................................................................................................................................................................................................................... 3

10 Expression of results ........................................................................................................................................................................................ 3

11 Test report ................................................................................................................................................................................................................... 3

Bibliography ................................................................................................................................................................................................................................ 5

© ISO 2020 – All rights reserved iii
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