1、BRITISH STANDARDBS EN ISO 2884-2:2006 BS 3900-A7-2: 2003Incorporating amendment no. 1 to BS 3900-A7-2:2003 (renumbers the BS as BS EN ISO 2884-2:2006)Paints and varnishes Determination of viscosity using rotary viscometers Part 2: Disc or ball viscometer operated at a specified speedThis European St
2、andard EN ISO 2884-2:2006 has the status of a British StandardICS 87.040g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Licensed Copy: Wang Bin, na,
3、 Thu Jun 07 01:50:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIBS EN ISO 2884-2:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 14 July 2003 BSI 2007ISBN 0 580 42257 7National forewordThis British Standard was published by BSI. It is the
4、UK implementation of EN ISO 2884-2:2006. It is identical to ISO 2884-2:2003.The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints. A list of organizations represented on this committee can be obtained on request to its secretary.This publication
5、 does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot of itself confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date Comments16864 28 February 2007 Renum
6、bers the BS as BS EN ISO 2884-2:2006Licensed Copy: Wang Bin, na, Thu Jun 07 01:50:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 2884-2June 2006ICS 87.040English VersionPaints and varnishes - Determination of viscosity using rotaryviscometers - Par
7、t 2: Disc or ball viscometer operated at aspecified speed (ISO 2884-2:2003)Peintures et vernis - Dtermination de la viscosit aumoyen de viscosimtres rotatifs - Partie 2: Viscosimtre disque ou bille fonctionnant vitesse spcifie (ISO2884-2:2003)Beschichtungsstoffe - Bestimmung der Viskositt mitRotatio
8、nsviskosimetern - Teil 2: Scheiben- oderKugelviskosimeter bei festgelegter Geschwindigkeit (ISO2884-2:2003)This European Standard was approved by CEN on 18 May 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStanda
9、rd the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, Ger
10、man). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denma
11、rk, 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.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONE
12、UROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 2884-2:2006: ELicensed Copy: Wang Bin, na, Thu Jun 07 01:50:15 GMT+00:00 2007, Uncontrolled
13、Copy, (c) BSIForeword The text of ISO 2884-2:2003 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 2884-2:2006 by Technical Committee CEN/TC 139 “Paints and varnishes“, the secretar
14、iat 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 December 2006, and conflicting national standards shall be withdrawn at the latest by December 2006. According to the C
15、EN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembour
16、g, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 2884-2:2003 has been approved by CEN as EN ISO 2884-2:2006 without any modifications. EN ISO 2884-2:2006Licensed Copy: Wang Bin, na, Thu Jun
17、 07 01:50:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIReference numberISO 2884-2:2003(E)OSI 3002INTERNATIONAL STANDARD ISO2884-2First edition2003-03-01Paints and varnishes Determination of viscosity using rotary viscometers Part 2: Disc or ball viscometer operated at a specified speed Peintures et
18、vernis Dtermination de la viscosit au moyen de viscosimtres rotatifs Partie 2: Viscosimtre disque ou bille fonctionnant vitesse spcifie EN ISO 2884-2:2006Licensed Copy: Wang Bin, na, Thu Jun 07 01:50:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSIDPlcsid Fremia ihTs PDF file mya ctnoian emdebt dedyfep
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21、izde fro irptni.gn Evyre cera neeb sah takne tsne oeru taht teh file is siutlbae fosu re yb ISO memdob rebeis. In tlnu ehikletneve y ttah lborp aem lertait gno it is f,dnuo plsaee ifnrom ttneC ehlar Secterirata ta teh serddaig sleb nevwo. ISO 3002 All irthgs erse.devr lnUeto sswrehise specified, on
22、trap fo this lbupictaion maeb y cudorperro de tuilizi den yna form ro na ybm ynae,s lecetrinoc ro mceinahcla, incliduntohp gcoiypodna gn micrfoilm, wittuoh repmissii now nritign from ietI rehSa Ot tsserdda eh ebolw or ISOs memreb i ydobn the cnuotfo yr ttseuqer ehe.r ISO cirypothg fofice saCe tsopal
23、e 65 eneG 1121-HC 02 avleT. 4 + 10 947 22 1 11 xaF0 947 22 14 + 9 74 E-mial coirypthgis.o groWe bwww.is.o groii ISO 3002 Allr ihgtsser edevrLicensed Copy: Wang Bin, na, Thu Jun 07 01:50:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSII SO 3002 All irhgts seredevr iiiContents Page Foreword iv 1 Scope 1
24、2 Normative references . 1 3 Apparatus. 2 4 Sampling 4 5 Checking the apparatus . 4 6 Procedure. 5 7 Cleaning of apparatus 5 8 Expression of results 6 9 Precision 6 10 Test report 6 Bibliography . 7 EN ISO 2884-2:2006Licensed Copy: Wang Bin, na, Thu Jun 07 01:50:15 GMT+00:00 2007, Uncontrolled Copy,
25、 (c) BSIiv I SO 3002 All irhgts seredevrForeword 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 bo
26、dy 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 Electrot
27、echnical 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 b
28、y 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 ri
29、ghts. ISO shall not be held responsible for identifying any or all such patent rights. ISO 2884-2 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes. ISO 2884 consists of the following parts, under the general title P
30、aints and varnishes Determination of viscosity using rotary viscometers: Part 1: Cone-and-plate viscometer operated at a high rate of shear Part 2: Disc or ball viscometer operated at a specified speed EN ISO 2884-2:2006Licensed Copy: Wang Bin, na, Thu Jun 07 01:50:15 GMT+00:00 2007, Uncontrolled Co
31、py, (c) BSII SO 3002 All irhgts seredevr 1Paints and varnishes Determination of viscosity using rotary viscometers Part 2: Disc or ball viscometer operated at a specified speed WARNING Persons using this part of ISO 2884 should be familiar with normal laboratory practice. This part of ISO 2884 does
32、not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate health and safety practices and to ensure compliance with any national regulatory conditions. 1 Scope This part of ISO 2884 specifies a general procedure
33、for determining the viscosity of paints, varnishes and related products with a viscosity of up to 34 Pas. It is applicable mainly during production and thinning. It supplements ISO 2431, Paints and varnishes Determination of flow time by use of flow cups; ISO 2884-1, Paints and varnishes Determinati
34、on of viscosity using rotary viscometers Part 1: Cone-and-plate viscometer operated at a high rate of shear. For more accurate methods of measurement of viscosity, refer to ISO 3219, Plastics Polymers/resins in the liquid state or as emulsions or dispersions Determination of viscosity using a rotati
35、onal viscometer with defined shear rate. The apparatus specified may be used in both a laboratory and a factory environment to determine the viscosity of a product and to monitor the viscosity whilst thinning during a manufacturing process. 2 Normative references The following referenced documents a
36、re 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 1513:1992, Paints and varnishes Examination and preparation of samples for testin
37、g ISO 3104:1994, Petroleum products Transparent and opaque liquids Determination of kinematic viscosity and calculation of dynamic viscosity ISO 3105:1994, Glass capillary kinematic viscometers Specifications and operating instructions ISO 15528:2000, Paints, varnishes and raw materials for paints a
38、nd varnishes Sampling EN ISO 2884-2:2006Licensed Copy: Wang Bin, na, Thu Jun 07 01:50:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSI2 I SO 3002 All irhgts seredevr3 Apparatus 3.1 Rotary viscometer (see Figure 1), of one of the types specified in 3.1.1 and 3.1.2. Dimensions in millimetres Key 1 viscom
39、eter 2 thermometer or temperature probe 3 type 1 spindle 4 type 2 spindle 5 type 3 spindle 6 container 7 level of inside surface of bottom of container, with nominal spindle heights indicated Figure 1 Rotary viscometer with disc and ball spindles 3.1.1 Digital-display viscometer, capable of operatin
40、g at a spindle speed of 562 rpm 2 % and having an accuracy, for a Newtonian fluid, within 1 % of the full-scale reading, for the viscosity ranges stated in 3.2.1 and 3.2.2. The torque is measured by an electronic method. 3.1.2 Analogue-display viscometer, capable of operating at a spindle speed of 5
41、62 rpm 2 % and having an accuracy, for a Newtonian fluid, within 1 % of the full-scale reading, for the viscosity ranges stated in 3.2.1 and 3.2.2. A spring is used to counteract the torque generated by the fluid. EN ISO 2884-2:2006Licensed Copy: Wang Bin, na, Thu Jun 07 01:50:15 GMT+00:00 2007, Unc
42、ontrolled Copy, (c) BSII SO 3002 All irhgts seredevr 33.2 Spindles (see Figure 2), of the following types: 3.2.1 Disc spindle (type 1), for use with viscosities up to 1,5 Pas (1 500 mPas), with an average shear rate of approximately 200 s1with a Newtonian fluid. The disc shall have cross-channels de
43、signed to produce a slight agitating action. The dimensions shall be as shown in Figure 2. 3.2.2 Ball spindles (types 2 and 3), for use with viscosities up to 6,5 Pas (type 2) and 34 Pas (type 3), with an average shear rate of approximately 44 s1and 20 s1, respectively, with a Newtonian fluid. The d
44、imensions shall be as shown in Figure 2. Dimensions in millimetres Key 1 disc spindle (type 1) 2 ball spindle (types 2 and 3) Spindle Viscosity range Diameter, D Type 2 0 mPas to 6 500 mPas (6,5 Pas) 31,75 mm Type 3 0 mPas to 34 000 mPas (34 Pas) 19,05 mm Figure 2 Disc and ball spindles EN ISO 2884-
45、2:2006Licensed Copy: Wang Bin, na, Thu Jun 07 01:50:15 GMT+00:00 2007, Uncontrolled Copy, (c) BSI4 I SO 3002 All irhgts seredevr3.3 Container, comprising a round paint can, as shown in Figure 3, with a capacity of 250 ml, a nominal internal diameter of 74 mm, a height of 74 mm and a filling-aperture
46、 diameter of 61 mm. If a different container is used, the viscometer shall be calibrated accordingly (see Clause 5). NOTE Different can sizes may result in different viscosity readings. Therefore users are advised to use the same can size when comparing samples. Dimensions in millimetres Figure 3 Co
47、ntainer 3.4 Temperature-control device, capable of maintaining the container and fluid at (23 0,3) C. 3.5 Calibrated thermometer, accurate to 0,3 C and graduated at intervals of 0,2 C or finer. 3.6 Calibration fluids: standard refined mineral oils having Newtonian characteristics. The viscosities sh
48、all be within 2 % of the stated values. The viscosities of the standard fluids shall have been determined by an accredited laboratory using an absolute method such as one of those specified in ISO 3104 or ISO 3105. 4 Sampling Take a representative sample of the product to be tested, as described in
49、ISO 15528. Examine the sample and prepare it for testing as described in ISO 1513. If necessary, strain the sample through a sieve of nominal mesh size 125 m into a clean container (3.3). The volume of the sample shall be sufficient to fill the 250 ml container to within about 15 mm of the top. 5 Checking the apparatus The apparatus shall be checked on a regular basis in accordance with the manufacturers recommendations and from experience gained in the use
