DIN EN ISO 2811-1-2016 Paints and varnishes - Determination of density - Part 1 Pycnometer method (ISO 2811-1 2016) German version EN ISO 2811-1 2016《色漆和清漆 密度的测定 第1部分 比重瓶法(ISO 2811.pdf

1、August 2016 English price group 11No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 87.040!%Y.B“2541131www.din.deDIN

2、EN ISO 2811-1Paints and varnishes Determination of density Part 1: Pycnometer method (ISO 2811-1:2016);English version EN ISO 2811-1:2016,English translation of DIN EN ISO 2811-1:2016-08Beschichtungsstoffe Bestimmung der Dichte Teil 1: Pyknometer-Verfahren (ISO 2811-1:2016);Englische Fassung EN ISO

3、2811-1:2016,Englische bersetzung von DIN EN ISO 2811-1:2016-08Peintures et vernis Dtermination de la masse volumique Partie 1: Mthode pycnomtrique (ISO 2811-1:2016);Version anglaise EN ISO 2811-1:2016,Traduction anglaise de DIN EN ISO 2811-1:2016-08SupersedesDIN EN ISO 2811-1:2011-06www.beuth.deDocu

4、ment comprises 18 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.08.16 DIN EN ISO 2811-1:2016-08 2 A comma is used as the decimal marker. National foreword This document (EN ISO 2811-1:2016) has been prepared by Technical Comm

5、ittee ISO/TC 35 “Paints and varnishes”, Subcommittee SC 9 “General test methods for paints and varnishes” (Secretariat: BSI, United Kingdom) in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” (Secretariat: DIN, Germany). The responsible German body involved in its preparatio

6、n was DIN-Normenausschuss Beschichtungsstoffe und Beschichtungen (DIN Standards Committee Coatings and Coating Materials), Working Committee NA 002-00-07 AA Allgemeine Prfverfahren fr Beschichtungsstoffe und Beschichtungen. DIN EN ISO 2811 consists of the following parts, under the general title Pai

7、nts and varnishes Determination of density: Part 1: Pycnometer method Part 2: Immersed body (plummet) method Part 3: Oscillation method Part 4: Pressure cup method The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 1513 DIN EN ISO 1513 ISO

8、 3507 DIN ISO 3507 ISO 3696 DIN ISO 3696 ISO 15528 DIN EN ISO 15528 Re: 5 “Temperature” Examples of relevant German regulations include: Eichordnung (Weights and measures regulation) and Fertigpackungsverordnung (Pre-packaging regulation). Amendments This standard differs from DIN EN ISO 2811-1:2011

9、-06 as follows: a) the information on the accuracy of the analytical balance (6.2) and the thermometer (6.3) has been changed; b) a requirement has been added that the sample shall be free from air bubbles; c) the spelling of pycnometer has been corrected. DIN EN ISO 2811-1:2016-08 3 Previous editio

10、ns DIN 53217: 1970-06 DIN 53217-1: 1981-01, 1991-03 DIN 53217-2: 1981-01, 1991-03 DIN EN ISO 2811-1 2002-02, 2006-10, 2011-06 DIN EN ISO 2811-1:2016-08 4 National Annex NA (informative) Bibliography DIN EN ISO 1513, Paints and varnishes Examination and preparation of test samples DIN EN ISO 15528, P

11、aints, varnishes and raw materials for paints and varnishes Sampling DIN ISO 3507, Laboratory glassware Pyknometers DIN ISO 3696, Water for analytical laboratory use Specification and test methods Identical with ISO 3696:1987 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2811-1 March 2016

12、 ICS 87.040 Supersedes EN ISO 2811-1:2011English Version Paints and varnishes - Determination of density - Part 1: Pycnometer method (ISO 2811-1:2016) Peintures et vernis - Dtermination de la masse volumique - Partie 1: Mthode pycnomtrique(ISO2811-1:2016) Beschichtungsstoffe - Bestimmung der Dichte

13、- Teil 1: Pyknometer-Verfahren (ISO 2811-1:2016) This European Standard was approved by CEN on 23 January 2016. 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 alt

14、eration. 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 ma

15、de 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, Esto

16、nia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STAND

17、ARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2811-1:2016 EForeword .41 Scope .52

18、Normative references 53 Terms and definitions .54 Principle 55 Temperature .56 Apparatus .67 Sampling 68 Procedure.68.1 General .68.2 Determination .79 Calculation 810 Precision .810.1 Repeatability limit, r .810.2 Reproducibility limit, R .811 Test report .8Annex A (informative) Example of a calibr

19、ation method 10Annex B (informative) Temperature variation 12Bibliography .14Contents PageEN ISO 2811-1:2016 (E) DIN EN ISO 2811-1:2016-08 2European foreword .3European foreword This document (EN ISO 2811-1:2016) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaborat

20、ion 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 September 2016, and conflicting national sta

21、ndards shall be withdrawn at the latest by September 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN

22、 ISO 2811:1:2011. 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, Former Yugoslav Republic of Mace

23、donia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 2811-1:2016 has been approved by C

24、EN as EN ISO 2811-1:2016 without any modification. EN ISO 2811-1:2016 (E) DIN EN ISO 2811-1:2016-08 3 ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally

25、 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 w

26、ork. 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 dif

27、ferent 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 m

28、ay 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/pate

29、nts).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principl

30、es in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.This third edition cancels and replaces the second e

31、dition (ISO 2811-1:2011), which has been technically revised with the following changes:a) the information on the accuracy of the analytical balance (6.2) and the thermometer (6.3) was changed;b) a requirement was added that the sample shall be free from air bubbles;c) the spelling of pycnometer was

32、 corrected.ISO 2811 consists of the following parts, under the general title Paints and varnishes Determination of density: Part 1: Pycnometer method Part 2: Immersed body (plummet) method Part 3: Oscillation method Part 4: Pressure cup methodEN ISO 2811-1:2016 (E) DIN EN ISO 2811-1:2016-08 4 1 Scop

33、eThis part of ISO 2811 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 highl

34、y viscous materials.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (

35、including any amendments) applies.ISO 1513, Paints and varnishes Examination and preparation of test samplesISO 3696, Water for analytical laboratory use Specification and test methodsISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling3 Terms and definitionsFor the purpo

36、ses of this document, the following terms and definitions apply.3.1densitymass divided by the volume of a portion of a materialNote 1 to entry: It is expressed in grams per cubic centimetre.4 PrincipleA pycnometer is filled with the product under test. The density is calculated from the mass of the

37、product in the pycnometer and the known volume of the pycnometer.5 TemperatureThe effect of temperature on density is highly significant with respect to filling properties, and varies with the type of product.For international reference purposes, it is essential to standardize one test temperature,

38、and (23,0 0,5) C is specified in this part of ISO 2811. It can be more convenient, however, to carry out comparative testing at some other agreed temperature, for example (20,0 0,5) C, as specified by relevant weights and measures legislation (see B.2).EN ISO 2811-1:2016 (E) DIN EN ISO 2811-1:2016-0

39、8 5 The test sample and pycnometer 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 ApparatusOrdinary laboratory apparatus and glassware, together with the following.6.1 Pycnometer6.1.1 Metal py

40、cnometer, with a volume of either 50 cm3or 100 cm3, a circular cross-section and a cylindrical form, made of a smoothly finished corrosion-resistant material with a snugly fitting lid having a hole in its centre.The inside of the lid shall be concave (see Figure 1).or6.1.2 Glass pycnometer, with a v

41、olume in the range 10 cm3to 100 cm3(Gay-Lussac type) (see Figure 2).6.2 Analytical balance, accurate to 1 mg for pycnometers for less than 50 ml or accurate to 10 mg for 50 ml to 100 ml pycnometers.The accuracy of the balance required depends on the size of the pycnometer used (see also 8.2).6.3 The

42、rmometer, with an accuracy of 0,2 C.NOTE Typically, a thermometer with an accuracy of 0,2 C has a resolution of 0,05 C.6.4 Temperature-controlled chamber, capable of accommodating the balance, pycnometer and test sample and maintaining them at the specified or agreed temperature (see Clause 5), or w

43、ater bath, capable of maintaining the pycnometer and test sample at the specified or agreed temperature.7 SamplingTake a representative sample of the product under test as described in ISO 15528.Examine and prepare the sample as described in ISO 1513. The sample shall be free from any air bubbles.8

44、Procedure8.1 GeneralCarry out a single determination on a fresh test sample.The pycnometer shall be calibrated. An example of a calibration method is given in Annex A.EN ISO 2811-1:2016 (E) DIN EN ISO 2811-1:2016-08 6 Figure 1 Metal pycnometerFigure 2 Gay-Lussac pycnometer8.2 DeterminationIf working

45、 with a temperature-controlled chamber (see 6.4), put the pycnometer (6.1) and the test sample next to the balance (6.2) in the chamber maintained at the specified or agreed temperature.If working with a water bath (see 6.4) rather than a temperature-controlled chamber, put the pycnometer and the te

46、st sample in the water bath, maintained at the specified or agreed temperature.Allow approximately 30 min for temperature equilibrium to be reached.Using the thermometer (6.3), measure the temperature, tT, of the test sample. Check throughout the determination that the temperature of the chamber or

47、water bath remains within the specified limits.Weigh the pycnometer and record the mass, m1, to the nearest 10 mg for 50 cm3to 100 cm3pycnometers and to the nearest 1 mg for pycnometers less than 50 cm3in volume.Fill the pycnometer with the product under test, taking care to avoid the formation of a

48、ir bubbles. Place the lid or stopper of the pycnometer firmly in position and wipe off any excess liquid from the outside of the pycnometer with an absorbent material wetted with solvent; wipe carefully with cotton wool.EN ISO 2811-1:2016 (E) DIN EN ISO 2811-1:2016-08 7 Record the mass of the pycnometer filled with the product under test,