EN ISO 2811-3:2011
(Main)Paints and varnishes - Determination of density - Part 3: Oscillation method (ISO 2811-3:2011)
Paints and varnishes - Determination of density - Part 3: Oscillation method (ISO 2811-3:2011)
ISO 2811-3:2011 specifies a method for determining the density of paints, varnishes and related products using an oscillator.
The method is suitable for all materials, including paste-like coatings. If a pressure-resistant type of apparatus is used, the method is also applicable to aerosols.
Beschichtungsstoffe - Bestimmung der Dichte - Teil 3: Schwingungsverfahren (ISO 2811-3:2011)
Dieser Teil von ISO 2811 legt ein Verfahren zum Bestimmen der Dichte von Beschichtungsstoffen und
ähnlichen Produkten mit einem Schwingungs-Dichtemesser fest.
Das Verfahren ist für alle Beschichtungsstoffe einschließlich pastenförmiger anwendbar. Wenn eine
druckfeste Ausführung des Gerätes verwendet wird, ist das Verfahren auch für Aerosole.
Peintures et vernis - Détermination de la masse volumique - Partie 3: Méthode par oscillation (ISO 2811-3:2011)
L'ISO 2811-3:2011 spécifie une méthode de détermination de la masse volumique des peintures, vernis et produits assimilés au moyen d'un oscillateur.
La méthode convient pour tous les produits, y compris les revêtements de consistance pâteuse. Si un type d'appareillage résistant à la pression est utilisé, la méthode est également applicable aux aérosols.
Barve in laki - Ugotavljanje gostote - 3. del: Oscilacijska metoda (ISO 2811-3:2011)
Ta del ISO 2811 določa metodo za ugotavljanje gostote barv, lakov in sorodnih proizvodov z uporabo oscilatorja. Metoda je primerna za vse materiale, vključno s pastoznimi prevlekami. Če se uporablja aparat, odporen proti tlaku, je metoda uporabna tudi za aerosole.
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Barve in laki - Ugotavljanje gostote - 3. del: Oscilacijska metoda (ISO 2811-3:2011)Beschichtungsstoffe - Bestimmung der Dichte - Teil 3: Schwingungsverfahren (ISO 2811-3:2011)Peintures et vernis - Détermination de la masse volumique - Partie 3: Méthode par oscillation (ISO 2811-3:2011)Paints and varnishes - Determination of density - Part 3: Oscillation method (ISO 2811-3:2011)87.040Barve in lakiPaints and varnishesICS:Ta slovenski standard je istoveten z:EN ISO 2811-3:2011SIST EN ISO 2811-3:2011en,fr,de01-november-2011SIST EN ISO 2811-3:2011SLOVENSKI
STANDARDSIST EN ISO 2811-3:20021DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN ISO 2811-3
March 2011 ICS 87.040 Supersedes EN ISO 2811-3:2001English Version
Paints and varnishes - Determination of density - Part 3: Oscillation method (ISO 2811-3:2011)
Peintures et vernis - Détermination de la masse volumique - Partie 3: Méthode par oscillation (ISO 2811-3:2011)
Beschichtungsstoffe - Bestimmung der Dichte - Teil 3: Schwingungsverfahren (ISO 2811-3:2011) This European Standard was approved by CEN on 19 February 2011.
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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2811-3:2011: ESIST EN ISO 2811-3:2011
Reference numberISO 2811-3:2011(E)© ISO 2011
INTERNATIONAL STANDARD ISO2811-3Second edition2011-03-01Paints and varnishes — Determination of density — Part 3: Oscillation method Peintures et vernis — Détermination de la masse volumique — Partie 3: Méthode par oscillation
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ii © ISO 2011 – All rights reserved
ISO 2811-3:2011(E) © ISO 2011 – All rights reserved iii Contents Page Foreword.iv 1 Scope.1 2 Normative references.1 3 Terms and definitions.1 4 Principle.1 5 Temperature.2 6 Apparatus.2 7 Sampling.2 8 Procedure.2 8.1 General.2 8.2 Determination.2 9 Calculation.3 10 Precision.3 10.1 General.3 10.2 Repeatability limit, r.3 10.3 Reproducibility limit, R.3 11 Test report.3 Annex A (normative)
Calibration of the apparatus — Determination of the apparatus constants.5 Annex B (informative)
Density values for damp air, air-free water and tetrachloroethylene.6 Annex C (informative)
Calculation of density at the reference temperature from measurements at other temperatures.8
ISO 2811-3:2011(E) iv © ISO 2011 – All rights reserved 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. 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. 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. ISO 2811-3 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes. This second edition cancels and replaces the first edition (ISO 2811-3:1997), which has been technically revised. The main changes are: a) The unit for the density has been changed from grams per millilitre to grams per cubic centimetre, because this is the more common SI unit. b) The determination in duplicate has been changed to a single determination. c) The precision data has been corrected. d) The normative references have been updated. ISO 2811 consists of the following parts, under the general title Paints and varnishes — Determination of density: ⎯ Part 1: Pyknometer method ⎯ Part 2: Immersed body (plummet) method ⎯ Part 3: Oscillation method ⎯ Part 4: Pressure cup method
INTERNATIONAL STANDARD ISO 2811-3:2011(E) © ISO 2011 – All rights reserved 1 Paints and varnishes — Determination of density — Part 3: Oscillation method 1 Scope This part of ISO 2811 specifies a method for determining the density of paints, varnishes and related products using an oscillator. The method is suitable for all materials, including paste-like coatings. If a pressure-resistant type of apparatus is used, the method is also applicable to aerosols. 2 Normative references The following referenced documents are indispensable for the application 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 test methods ISO 15528, Paints, varnishes and raw materials for paints and varnishes — Sampling 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 density ρ mass divided by the volume of a portion of a material NOTE This is expressed in grams per cubic centimetre. 4 Principle A glass or stainless-steel U-tube is filled with the product under test. The tube is clamped at both ends and then subjected to oscillation. The resonance frequency of the filled tube varies with the mass contained in the tube, i.e. the density of the product under test. SIST EN ISO 2811-3:2011
ISO 2811-3:2011(E) 2 © ISO 2011 – All rights reserved 5 Temperature The effect of temperature on density is highly significant with respect to filling properties, and varies with the type of product. Carry out the test at (23,0 ± 0,5) °C. NOTE For some purposes a different temperature, for example (20,0 ± 0,5) °C, might be needed. The test sample, tube and oscillator shall be conditioned to the specified or agreed temperature, and it shall be ensured that the temperature variation does not exceed 0,5 °C during testing. 6 Apparatus Ordinary laboratory apparatus and glassware, together with the following. 6.1 Oscillator, consisting of a glass or stainless-steel U-tube and apparatus to cause the U-tube to oscillate. One model displays the resonance frequency; another calculates and displays the density. 6.2 Thermometer, accurate to 0,2 °C and graduated at intervals of 0,2 °C or finer. 6.3 Temperature-controlled chamber, capable of maintaining the oscillator and test sample at the specified or agreed temperature (see Clause 5). 6.4 Disposable plastic syringe, of sufficient capacity to fill the U-tube. 7 Sampling Take a representative sample of the product under test, as described in ISO 15528. Examine and prepare the sample as described in ISO 1513. 8 Procedure 8.1 General Carry out a single determination on a fresh test sample. 8.2 Determination Ensure that the apparatus is clean, both by inspection and by checking that the display indicates the density of air (or the corresponding period of oscillation at resonance). Fill the U-tube with the product under test (about 2 cm3) in accordance with the oscillator manufacturer's instructions (i.e. until the level is above the upper of the two clamps holding the U-tube). Avoid introducing air bubbles, which cause unsteady readings. NOTE The presence of non-visible air bubbles becomes apparent due to the fact that the measured values vary considerably. Close the upper filler-hole. Using the thermometer (6.2), check that the temperature of the
temperature-controlled chamber is within the specified limit
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