SIST EN ISO 2811-1:2023

Paints and varnishes - Determination of density - Part 1: Pycnometer method (ISO 2811-1:2023)

This document specifies a method for determining the density of paints, varnishes and related products using a metal or Gay-Lussac pycnometer.
The method is limited to materials of low or medium viscosity at the temperature of test. The Hubbard pycnometer (see ISO 3507) can be used for highly viscous materials.

Beschichtungsstoffe - Bestimmung der Dichte - Teil 1: Pyknometer-Verfahren (ISO 2811-1:2023)

Dieses Dokument legt ein Verfahren zum Bestimmen der Dichte von Beschichtungsstoffen und ähnlichen Produkten mit einem Metallpyknometer oder einem Pyknometer nach Gay Lussac fest.
Das Verfahren ist nur für Stoffe mit niedriger oder mittlerer Viskosität bei der Prüftemperatur anwendbar. Das Pyknometer nach Hubbard (siehe ISO 3507) kann für hochviskose Stoffe verwendet werden.

Peintures et vernis - Détermination de la masse volumique - Partie 1: Méthode pycnométrique (ISO 2811-1:2023)

Le présent document spécifie une méthode de détermination de la masse volumique des peintures, vernis et produits assimilés au moyen d’un pycnomètre en métal ou d’un pycnomètre de Gay-Lussac.
La méthode est limitée aux produits de viscosité faible ou moyenne à la température d’essai. Le pycnomètre de Hubbard (voir ISO 3507) peut être utilisé pour les produits à forte viscosité.

Barve in laki - Določanje gostote - 1. del: Metoda s piknometrom (ISO 2811-1:2023)

Standard ISO 2811-1:2016 določa metodo za ugotavljanje gostote barv, lakov in sorodnih izdelkov z uporabo kovinskega ali Gay-Lussacovega piknometra.
Metoda je omejena na materiale z nizko ali srednjo viskoznostjo pri preskusni temperaturi. Hubbardov piknometer (glej standard ISO 3507) se lahko uporablja za materiale z visoko viskoznostjo.

General Information

• Status: Published
• Public Enquiry End Date: 01-Jul-2022
• Publication Date: 28-Mar-2023
• ICS: 87.040 - Paints and varnishes
• Technical Committee: IBLP - Paints and varnishes
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 08-Mar-2023
• Due Date: 13-May-2023
• Completion Date: 29-Mar-2023
• Ref Project: EN ISO 2811-1:2023 - Paints and varnishes - Determination of density - Part 1: Pycnometer method (ISO 2811-1:2023)

Relations

• Replaces: SIST EN ISO 2811-1:2016 - Paints and varnishes - Determination of density - Part 1: Pycnometer method (ISO 2811-1:2016)
• Effective Date: 01-May-2023

Overview

EN ISO 2811-1:2023 - Paints and varnishes: Determination of density - Part 1: Pycnometer method (ISO 2811-1:2023) specifies a standardized laboratory procedure to determine the density of paints, varnishes and related products using a pycnometer (metal or Gay‑Lussac type). The method is intended for materials of low to medium viscosity at the test temperature; highly viscous materials should be tested using the Hubbard pycnometer (see ISO 3507). This edition updates previous versions and adds a requirement to de‑aerate samples to improve reproducibility.

Key topics and requirements

• Test principle: Fill a calibrated pycnometer with the product, weigh it and calculate density from the mass of product and the known pycnometer volume (ρ = mass/volume).
• Pycnometer types: Metal pycnometers (50 cm3 or 100 cm3) and glass Gay‑Lussac pycnometers (10–100 cm3) are specified. Choice affects balance accuracy and handling.
• Temperature control: Standard reference temperature is (23.0 ± 0.5) °C; alternative agreed temperatures (e.g., 20.0 ± 0.5 °C) are permitted. Sample and apparatus must be conditioned and temperature variation kept within 0.5 °C.
• Sample preparation: Follow ISO 15528 (sampling) and ISO 1513 (sample preparation). The sample must be free of air bubbles; de‑aeration is now required where appropriate to ensure reproducible density results.
• Apparatus and metrology: Analytical balance with appropriate maximum permissible error (dependent on pycnometer volume), thermometer (±0.2 °C), and temperature control (chamber or water bath).
• Calibration and procedure: Pycnometer calibration is mandatory (Annex A gives an example). Procedure details include conditioning, weighing empty and filled pycnometer, and careful wiping of excess liquid to avoid weighing errors.
• Precision: The standard includes provisions for repeatability and reproducibility limits and requires reporting of test conditions and results.

Applications and users

• Quality control and incoming inspection in paint, coatings and varnish manufacturing
• R&D labs developing formulations where density affects pigmentation, filling properties, and application characteristics
• Regulatory and conformity testing where standardized, traceable density measurements are required
• Laboratories comparing batches, performing material specifications, or calculating solids content and formulation densities

Related standards

• ISO 3507 - Hubbard pycnometer for highly viscous materials
• ISO 1513 - Examination and preparation of test samples
• ISO 15528 - Sampling of paints and varnishes
• ISO 3696 - Water for analytical laboratory use

This standard is essential for any laboratory or manufacturer needing reliable, repeatable density measurements of liquid coatings using the pycnometer method. Keywords: EN ISO 2811-1:2023, pycnometer method, density testing, paints and varnishes, Gay‑Lussac pycnometer, de‑aeration, temperature control, analytical balance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2023
Nadomešča:
SIST EN ISO 2811-1:2016
Barve in laki - Določanje gostote - 1. del: Metoda s piknometrom (ISO 2811-1:2023)
Paints and varnishes - Determination of density - Part 1: Pycnometer method (ISO 2811-
1:2023)
Beschichtungsstoffe - Bestimmung der Dichte - Teil 1: Pyknometer-Verfahren (ISO 2811-
1:2023)
Peintures et vernis - Détermination de la masse volumique - Partie 1: Méthode
pycnométrique (ISO 2811-1:2023)
Ta slovenski standard je istoveten z: EN ISO 2811-1:2023
ICS:
87.040 Barve in laki Paints and varnishes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 2811-1
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2023
EUROPÄISCHE NORM
ICS 87.040 Supersedes EN ISO 2811-1:2016
English Version
Paints and varnishes - Determination of density - Part 1:
Pycnometer method (ISO 2811-1:2023)
Peintures et vernis - Détermination de la masse Beschichtungsstoffe - Bestimmung der Dichte - Teil 1:
volumique - Partie 1: Méthode pycnométrique (ISO Pyknometer-Verfahren (ISO 2811-1:2023)
2811-1:2023)
This European Standard was approved by CEN on 20 January 2023.

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, Türkiye 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2811-1:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 2811-1:2023) has been prepared by Technical Committee ISO/TC 35 "Paints
and varnishes" in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” 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 August 2023, and conflicting national standards shall
be withdrawn at the latest by August 2023.
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 2811-1:2016.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 2811-1:2023 has been approved by CEN as EN ISO 2811-1:2023 without any
modification.
INTERNATIONAL ISO
STANDARD 2811-1
Fourth edition
2023-01
Paints and varnishes — Determination
of density —
Part 1:
Pycnometer method
Peintures et vernis — Détermination de la masse volumique —
Partie 1: Méthode pycnométrique
Reference number
ISO 2811-1:2023(E)
ISO 2811-1:2023(E)
© ISO 2023
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 2811-1:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Temperature . 1
6 Apparatus . 2
7 Sampling . 3
8 Procedure .3
8.1 General . 3
8.2 Determination . 4
9 Calculation . 4
10 Precision . 5
10.1 Repeatability limit, r . . 5
10.2 Reproducibility limit, R . 5
11 Test report . 5
Annex A (informative) Example of a calibration method . 6
Annex B (normative) Temperature variation . 8
Bibliography .10
iii
ISO 2811-1:2023(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 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.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee
SC 9, General test methods for paints and varnishes, in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 139, Paints and varnishes, in accordance with the
Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This fourth edition cancels and replaces the third edition (ISO 2811-1:2016), which has been technically
revised.
The main changes are as follows:
— a requirement to de-aerate the sample prior to the determination in order to achieve reproducible
results for the density has been added to 8.2;
— the text has been editorially revised and the normative references have been updated.
A list of all parts in the ISO 2811 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
iv
INTERNATIONAL STANDARD ISO 2811-1:2023(E)
Paints and varnishes — Determination of density —
Part 1:
Pycnometer method
1 Scope
This document specifies a method for determining the density of paints, varnishes and related products
using a metal or Gay-Lussac pycnometer.
The method is limited to materials of low or medium viscosity at the temperature of test. The Hubbard
pycnometer (see ISO 3507) can be used for highly viscous materials.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 1513, Paints and varnishes — Examination and preparation of test samples
ISO 3696, Water for analytical laboratory use — Specification and
...