DIN EN ISO 1183-1-2013 Plastics - Methods for determining the density of non-cellular plastics - Part 1 Immersion method liquid pyknometer method and titration method (ISO 1183-1 2.pdf

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1、April 2013Translation by DIN-Sprachendienst.English price group 10No 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 8

2、3.080.01!$“1999327www.din.deDDIN EN ISO 1183-1Plastics Methods for determining the density of non-cellular plastics Part 1: Immersion method, liquid pyknometer method and titrationmethod (ISO 1183-1:2012);English version EN ISO 1183-1:2012,English translation of DIN EN ISO 1183-1:2013-04Kunststoffe

3、Verfahren zur Bestimmung der Dichte von nicht verschumten Kunststoffen Teil 1: Eintauchverfahren, Verfahren mit Flssigkeitspyknometer und Titrationsverfahren(ISO 1183-1:2012);Englische Fassung EN ISO 1183-1:2012,Englische bersetzung von DIN EN ISO 1183-1:2013-04Plastiques Mthodes de dtermination de

4、la masse volumique des plastiques non alvolaires Partie 1: Mthode par immersion, mthode du pycnomtre en milieu liquide et mthodepar titrage (ISO 1183-1:2012);Version anglaise EN ISO 1183-1:2012,Traduction anglaise de DIN EN ISO 1183-1:2013-04SupersedesDIN EN ISO 1183-1:2004-05www.beuth.deIn case of

5、doubt, the German-language original shall be considered authoritative.Document comprises 15 pages03.13 DIN EN ISO 1183-1:2013-04 2 A comma is used as the decimal marker. National foreword This document (EN ISO 1183-1:2012) has been prepared by Technical Committee ISO/TC 61 “Plastics” (Secretariat: S

6、AC, China) in collaboration with Technical Committee CEN/TC 249 “Plastics” (Secretariat: NBN, Belgium). The responsible German body involved in its preparation was the Normenausschuss Kunststoffe (Plastics Standards Committee), Working Committee NA 054-01-03 AA Physikalische, rheologische und analyt

7、ische Prfungen. DIN EN ISO 1183 consists of the following parts under the general title Plastics Methods for determining the density of non-cellular plastics: Part 1: Immersion method, liquid pyknometer method and titration method Part 2: Density gradient column method Part 3: Gas pyknometer method

8、The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 291 DIN EN ISO 291 ISO 472 DIN EN ISO 472 Amendments This standard differs from DIN EN ISO 1183-1:2004-05 as follows: a) the standard has been editorially revised; b) in the key of Equatio

9、n (5) concerning the density of air, the relative humidity (RH) has been taken into account and in Clause 6 “Correction for buoyancy in air”, Equation (6) for the calculation of the density of the air has been corrected; c) Annex B (informative) “Correction for buoyancy in air” has been added to des

10、cribe in more detail how to derive Equation (5); d) a Bibliography has been added. Previous editions DIN 53479: 1954x-09, 1976-07 DIN EN ISO 1183-1: 2004-05 National Annex NA (informative) Bibliography DIN EN ISO 291, Plastics Standard atmospheres for conditioning and testing DIN EN ISO 472, Plastic

11、s Vocabulary EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1183-1 December 2012 ICS 83.080.01 Supersedes EN ISO 1183-1:2004English Version Plastics - Methods for determining the density of non-cellular plastics - Part 1: Immersion method, liquid pyknometer method and titration method (ISO

12、 1183-1:2012) Plastiques - Mthodes de dtermination de la masse volumique des plastiques non alvolaires - Partie 1: Mthode par immersion, mthode du pycnomtre en milieu liquide et mthode par titrage (ISO 1183-1:2012) Kunststoffe - Verfahren zur Bestimmung der Dichte von nicht verschumten Kunststoffen

13、- Teil 1: Eintauchverfahren, Verfahren mit Flssigkeitspyknometer und Titrationsverfahren (ISO 1183-1:2012) This European Standard was approved by CEN on 2 June 2012. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Stan

14、dard 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 (Englis

15、h, 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, Bu

16、lgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, 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,

17、Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No.

18、EN ISO 1183-1:2012: EContents Page Foreword . 3 1 Scope . 4 2 Normative references. 4 3 Terms and definitions 4 4 Conditioning . 5 5 Methods . 5 5.1 Method A Immersion method . 5 5.2 Method B Liquid pyknometer method . 7 5.3 Method C Titration method . 8 6 Correction for buoyancy in air 9 7 Test rep

19、ort . 10 Annex A (informative) Liquid systems suitable for use in Method C . 11 Annex B (informative) Correction for buoyancy in air . 12 Bibliography 13 2DIN EN ISO 1183-1:2013-04 EN ISO 1183-1:2012 (E) Foreword This document (EN ISO 1183-1:2012) has been prepared by Technical Committee ISO/TC 61 i

20、n collaboration with Technical Committee CEN/TC 249 “Plastics” the secretariat of which is held by NBN. 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 June 2013, and conflicting national standard

21、s shall be withdrawn at the latest by June 2013. 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 ISO 1183-

22、1:2004. According to the CEN/CENELEC Internal Regulations, the national standards organisations 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 Macedonia, Fra

23、nce, 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 1183-1:2012 has been approved by CEN as a EN

24、 ISO 1183-1:2012 without any modification. “Plastics”3DIN EN ISO 1183-1:2013-04 EN ISO 1183-1:2012 (E) WARNING The use of this part of ISO 1183 might involve hazardous materials, operations or equipment. This part of ISO 1183 does not purport to address all of the safety problems, if any, associated

25、 with its use. It is the responsibility of the user of this part of ISO 1183 to establish appropriate health and safety practices and to determine the applicability of any regulatory limitations prior to use.1 ScopeThis part of ISO 1183 specifies three methods for the determination of the density of

26、 non-cellular plastics in the form of void-free moulded or extruded objects, as well as powders, flakes and granules. Method A: Immersion method, for solid plastics (except for powders) in void-free form. Method B: Liquid pyknometer method, for particles, powders, flakes, granules or small pieces of

27、 finished parts. Method C: Titration method, for plastics in any void-free form.NOTE This part of ISO 1183 is applicable to pellets as long as they are void-free. Density is frequently used to follow variations in physical structure or composition of plastic materials. Density might also be useful i

28、n assessing the uniformity of samples or specimens. Often, the density of plastic materials will depend upon the choice of specimen preparation method. When this is the case, precise details of the specimen preparation method will have to be included in the appropriate material specification. This n

29、ote is applicable to all three methods.2 Normative referencesThe 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 amendment

30、s) applies.ISO 291, Plastics Standard atmospheres for conditioning and testingISO 472, Plastics Vocabulary3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 472 and the following apply.3.1massmquantity of matter contained in a bodyNOTE It is expressed in

31、 kilograms (kg) or grams (g).4DIN EN ISO 1183-1:2013-04 EN ISO 1183-1:2012 (E) 3.2apparent massmAPPmass of a body obtained by measuring its weight using an appropriately calibrated balanceNOTE It is expressed in kilograms (kg) or grams (g).3.3densityratio of the mass m of a sample to its volume V (a

32、t the temperature t), expressed in kg/m3, kg/dm3(g/cm3) or kg/l (g/ml)NOTE The following terms, based upon ISO 80000-4, are given in Table 1 for clarification.Table 1 Density termsTerm Symbol Formulation UnitsDensity m/Vkg/m3kg/dm3(g/cm3)kg/l (g/ml)Specific volume V/m (= 1/)m3/kgdm3/kg (cm3/g)l/kg (

33、ml/g)4 ConditioningThe test atmosphere shall be in accordance with ISO 291. In general, conditioning specimens to constant temperature is not required, because the determination itself brings the specimen to the constant temperature of the test.Specimens which change in density during the test to su

34、ch an extent that the change is greater than the required accuracy shall be conditioned prior to measurement in accordance with the applicable material specification. When changes in density with time or atmospheric conditions are the primary purpose of the measurements, the specimens shall be condi

35、tioned as described in the material specification and, if no material specification exists, then as agreed upon by the interested parties.5 Methods5.1 Method A Immersion method5.1.1 Apparatus5.1.1.1 Analytical balance or instrument specifically designed for measurement of density, accurate to 0,1 mg

36、.An automatically operating instrument may be used. The calculation of density may be done automatically using a computer.5.1.1.2 Immersion vessel: a beaker or other wide-mouthed container of suitable size for holding the immersion liquid.5.1.1.3 Stationary support, e.g. a pan straddle, to hold the

37、immersion vessel above the balance pan.5DIN EN ISO 1183-1:2013-04 EN ISO 1183-1:2012 (E) 5.1.1.4 Thermometer, graduated at 0,1 C intervals, covering the range 0 C to 30 C.5.1.1.5 Wire (if required), corrosion-resistant, of diameter not greater than 0,5 mm, for suspending specimens in the immersion l

38、iquid.5.1.1.6 Sinker, of suitable mass to ensure complete immersion of the specimen, for use when the density of the specimen is less than that of the immersion liquid.5.1.1.7 Pyknometer, with a side-arm overflow capillary, for determining the density of the immersion liquid when this liquid is not

39、water. The pyknometer shall be equipped with a thermometer graduated at 0,1 C intervals from 0 C to 30 C.5.1.1.8 Liquid bath, capable of being thermostatically controlled to within 0,5 C, for use in determining the density of the immersion liquid.5.1.2 Immersion liquidUse freshly distilled or deioni

40、zed water, or another suitable liquid, containing not more than 0,1 % of a wetting agent to help in removing air bubbles. The liquid or solution with which the specimen comes into contact during the measurement shall have no effect on the specimen.The density of immersion liquids other than distille

41、d water need not be measured provided they are obtained from an accredited source and are accompanied by a certificate.5.1.3 SpecimensSpecimens may be in any void-free form except for powder. They shall be of a convenient size to give adequate clearance between the specimen and the immersion vessel

42、and should preferably have a mass of at least 1 g.When cutting specimens from larger samples, proper equipment shall be used to ensure that the characteristics of the material do not change. The surface of the specimen shall be smooth and free from cavities to minimize the entrapment of air bubbles

43、upon immersion in the liquid, otherwise errors will be introduced.5.1.4 Procedure5.1.4.1 Weigh the specimen, to the nearest 0,1 mg, in air while suspended with a wire of maximum diameter 0,5 mm. Record the mass of the specimen.5.1.4.2 Immerse the specimen, still suspended by the wire, in the immersi

44、on liquid (5.1.2), contained in the immersion vessel (5.1.1.2) on the support (5.1.1.3). The temperature of the immersion liquid shall be 23 C 2 C (or 27 C 2 C). Remove any adhering air bubbles with a fine wire. Weigh the immersed specimen to the nearest 0,1 mg.If the measurement is carried out in a

45、 temperature-controlled room, the temperature of the whole apparatus, including the immersion liquid, shall be within the range 23 C 2 C (or 27 C 2 C).5.1.4.3 If necessary, determine the density of immersion liquids other than water as follows. Weigh the pyknometer (5.1.1.7) empty and then containin

46、g freshly distilled or deionized water at a temperature of 23 C 0,5 C (or 27 C 0,5 C). Weigh the same pyknometer, after cleaning and drying, filled with the immersion liquid also at a temperature of 23 C 0,5 C (or 27 C 0,5 C). Use the liquid bath (5.1.1.8) to bring the water and immersion liquid to

47、the correct temperature. Calculate the density IL, in grams per cubic centimetre, of the immersion liquid at 23 C (or 27 C), using the equation:6DIN EN ISO 1183-1:2013-04 EN ISO 1183-1:2012 (E) ILILWW=mm(1)wheremILis the mass, in grams, of the immersion liquid;mWis the mass, in grams, of the water;W

48、is the density, in grams per cubic centimetre, of water at 23 C (or 27 C).5.1.4.4 Calculate the density S, in grams per cubic centimetre, of the specimen at 23 C (or 27 C), using the equation:SS,AILS,AS,IL=mmm(2)wheremS,Ais the apparent mass, in grams, of the specimen in air;mS,ILis the apparent mas

49、s, in grams, of the specimen in the immersion liquid;ILis the density of the immersion liquid at 23 C (or 27 C), in grams per cubic centimetre, as stated by the supplier or determined as specified in 5.1.4.3.For specimens having a density below that of the immersion liquid, the test may be performed in exactly the same way as described above, with the following exception: a sink