EN ISO 787-13:2019
(Main)General methods of test for pigments and extenders - Part 13: Determination of water-soluble sulfates, chlorides and nitrates (ISO 787-13:2019)
General methods of test for pigments and extenders - Part 13: Determination of water-soluble sulfates, chlorides and nitrates (ISO 787-13:2019)
This document specifies a general method of test for determining the water-soluble sulphates, chlorides and nitrates of pigments.
Allgemeine Prüfverfahren für Pigmente und Füllstoffe - Teil 13: Bestimmung der wasserlöslichen Sulfate, Chloride und Nitrate (ISO 787-13:2019)
Dieses Dokument legt ein allgemeines Prüfverfahren zur Bestimmung der wasserlöslichen Sulfate, Chloride und Nitrate von Pigmenten fest.
Méthodes générales d'essai des pigments et matières de charge - Partie 13: Détermination des sulfates, chlorures et nitrates solubles dans l'eau (ISO 787-13:2019)
Le présent document spécifie une méthode générale d'essai pour la détermination des sulfates, chlorures et nitrates de pigments solubles dans l'eau.
Splošne metode preskušanja pigmentov in polnil - 13. del: Določevanje sulfatov, kloridov in nitratov, topnih v vodi (ISO 787-13:2019)
Ta dokument določa splošno metodo preskušanja za določevanje sulfatov, kloridov in nitratov pigmentov, topnih v vodi.
General Information
- Status
- Published
- Publication Date
- 24-Sep-2019
- Withdrawal Date
- 30-Mar-2020
- Technical Committee
- CEN/TC 298 - Pigments and extenders
- Drafting Committee
- CEN/TC 298 - Pigments and extenders
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 25-Sep-2019
- Completion Date
- 25-Sep-2019
Relations
- Effective Date
- 25-Oct-2017
Overview
EN ISO 787-13:2019 (ISO 787-13:2019) defines general laboratory test methods for the determination of water‑soluble sulphates, chlorides and nitrates in pigments and extenders. Published by CEN/ISO, this part of the ISO 787 series provides step‑by‑step analytical procedures, required reagents and apparatus, sampling references and result expression rules for quality control and specification testing of pigment raw materials and finished products.
Key topics and technical requirements
- Scope: A single, general method for measuring the water‑soluble fractions of sulphates, chlorides and nitrates in pigments and extenders.
- Reagents: Analytical‑grade chemicals and distilled (or equivalent) water. The standard lists specific reagents (with CAS identifiers) such as hydrochloric acid, 0.01 mol/L silver nitrate, barium chloride, potassium chromate, Devarda’s alloy and Nessler’s reagent.
- Apparatus: Typical laboratory equipment plus specified items such as a sintered‑silica filter crucible (porosity P10/P16), Nessler cylinder (50 ml) and distillation apparatus.
- Sampling: Representative sampling is required per ISO 15528 to obtain the test portion.
- Procedures:
- Sulphates: acidify a clear aqueous extract, precipitate as barium sulphate, filter, ignite and weigh the BaSO4 precipitate to calculate SO4 content.
- Chlorides: add potassium chromate indicator to the extract and titrate with 0.01 mol/L silver nitrate (Mohr method); potentiometric end‑point is an alternative.
- Nitrates: reduce nitrates with Devarda’s alloy under alkaline conditions, distil the released ammonia into acidified receiver, then colour‑match with Nessler’s reagent against ammonium standards.
- Results: Formulae for converting analytical measurements to mass fractions are provided; results are reported to two decimal places.
- Document controls: Replaces the 2002 edition; includes updated terms referencing ISO 18451‑1 and added bibliography.
Applications and who uses it
- Pigment and extender manufacturers for raw material specification and incoming quality control.
- Paints and coatings producers to verify contaminant levels that affect formulation, stability and performance.
- Analytical and QA/QC laboratories performing routine or contract testing of pigments, fillers and dyestuffs.
- Regulatory and procurement teams that need standardized test data for material acceptance and compliance.
- R&D teams assessing the effect of soluble ions on product properties (corrosion, conductivity, dispersion).
Related standards
- ISO 787 series (other parts covering pigment test methods)
- ISO 15528 - Sampling for paints, varnishes and raw materials
- ISO 18451‑1 - Terminology for pigments, dyestuffs and extenders
Keywords: EN ISO 787-13:2019, ISO 787-13, pigments and extenders, water-soluble sulphates, chlorides, nitrates, Mohr titration, barium sulfate precipitation, Devarda’s alloy, Nessler’s reagent, pigment test methods.
Frequently Asked Questions
EN ISO 787-13:2019 is a standard published by the European Committee for Standardization (CEN). Its full title is "General methods of test for pigments and extenders - Part 13: Determination of water-soluble sulfates, chlorides and nitrates (ISO 787-13:2019)". This standard covers: This document specifies a general method of test for determining the water-soluble sulphates, chlorides and nitrates of pigments.
This document specifies a general method of test for determining the water-soluble sulphates, chlorides and nitrates of pigments.
EN ISO 787-13:2019 is classified under the following ICS (International Classification for Standards) categories: 87.060.10 - Pigments and extenders. The ICS classification helps identify the subject area and facilitates finding related standards.
EN ISO 787-13:2019 has the following relationships with other standards: It is inter standard links to EN ISO 787-13:2002. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN ISO 787-13:2019 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2019
Nadomešča:
SIST EN ISO 787-13:2003
Splošne metode preskušanja pigmentov in polnil - 13. del: Določevanje sulfatov,
kloridov in nitratov, topnih v vodi (ISO 787-13:2019)
General methods of test for pigments and extenders - Part 13: Determination of water-
soluble sulfates, chlorides and nitrates (ISO 787-13:2019)
Allgemeine Prüfverfahren für Pigmente und Füllstoffe - Teil 13: Bestimmung der
wasserlöslichen Sulfate, Chloride und Nitrate (ISO 787-13:2019)
Méthodes générales d'essai des pigments et matières de charge - Partie 13:
Détermination des sulfates, chlorures et nitrates solubles dans l'eau (ISO 787-13:2019)
Ta slovenski standard je istoveten z: EN ISO 787-13:2019
ICS:
87.060.10 Pigmenti in polnila Pigments and extenders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 787-13
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2019
EUROPÄISCHE NORM
ICS 87.060.10 Supersedes EN ISO 787-13:2002
English Version
General methods of test for pigments and extenders - Part
13: Determination of water-soluble sulfates, chlorides and
nitrates (ISO 787-13:2019)
Méthodes générales d'essai des pigments et matières Allgemeine Prüfverfahren für Pigmente und Füllstoffe -
de charge - Partie 13: Détermination des sulfates, Teil 13: Bestimmung der wasserlöslichen Sulfate,
chlorures et nitrates solubles dans l'eau (ISO 787- Chloride und Nitrate (ISO 787-13:2019)
13:2019)
This European Standard was approved by CEN on 9 August 2019.
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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 787-13:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 787-13:2019) 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 March 2020, and conflicting national standards shall
be withdrawn at the latest by March 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 787-13:2002.
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 787-13:2019 has been approved by CEN as EN ISO 787-13:2019 without any
modification.
INTERNATIONAL ISO
STANDARD 787-13
Third edition
2019-08
General methods of test for pigments
and extenders —
Part 13:
Determination of water-soluble
sulphates, chlorides and nitrates
Méthodes générales d'essai des pigments et matières de charge —
Partie 13: Détermination des sulfates, chlorures et nitrates solubles
dans l'eau
Reference number
ISO 787-13:2019(E)
©
ISO 2019
ISO 787-13:2019(E)
© ISO 2019
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
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Published in Switzerland
ii © ISO 2019 – All rights reserved
ISO 787-13:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Reagents . 1
5 Apparatus . 2
6 Sampling . 2
7 Determination of sulphates . 2
7.1 Procedure . 2
7.2 Expression of results . 2
8 Determination of chlorides . 3
8.1 Procedure . 3
8.2 Expression of results . 3
9 Determination of nitrates . 3
9.1 Procedure . 3
9.2 Expression of results . 4
10 Test report . 4
Bibliography . 5
ISO 787-13:2019(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. Each member body interested in a subject fo
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