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1、BRITISH STANDARD BS EN ISO 1524:2002 BS 3900-C6: 2000 Incorporating Amendment No. 1 to BS 3900-C6:2000 (renumbers the BS as BS EN ISO 1524:2002) Paints, varnishes and printing inks Determination of fineness of grind The European Standard EN ISO 1524:2002 has the status of a British Standard ICS 87.0
2、40 ? BS EN ISO 1524:2002 This British Standard, having been prepared under the direction of the Materials and Chemicals Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 15 November 2000 BSI 21 January 2003 ISBN 0 580 36685 5 Na
3、tional foreword This British Standard is the official English language version of EN ISO 1524:2002. It is identical with ISO 1524:2000. It supersedes BS 3900-C6:1983 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints, whic
4、h has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Catalogue under the secti
5、on entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Co
6、mpliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor rela
7、ted international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii and iii, a blank page, pages 1 to 6, the Annex ZA page and a back co
8、ver. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments 1412221 January 2003 Renumbers BS 3900-C6:2000 as BS EN ISO 1524:2002 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1524 January 20
9、02 ICS 87.040Supersedes EN 21524:1991 English version Paints, varnishes and printing inks Determination of fineness of grind (ISO 1524:2000) Peintures et vernis Dtermination de la finesse de broyage (ISO 1524:2000) Beschichtungsstoffe und Druckfarben Bestimmung der Mahlfeinheit (Krnigkeit) (ISO 1524
10、:2000) This European Standard was approved by CEN on 27 December 2001. 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 bibliograph
11、ical references concerning such national standards may be obtained on application to the 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 m
12、ember into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norwa
13、y, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide f
14、or CEN national Members. Ref. No. EN ISO 1524:2002 E Foreword The text of the International Standard from Technical Committee ISO/TC 35, Paints and varnishes, of the International Organization for Standardization (ISO) has been taken over as a European Standard by Technical Committee CEN/TC 139, Pai
15、nts 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 July 2002, and conflicting national standards shall be withdrawn at the latest by July 2
16、002. This document supersedes EN 21524:1991. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland
17、, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO 1524:2000 has been approved by CEN as a European Standard without any modifications. NOTE Normative references to International
18、Standards are listed in Annex ZA (normative). EN ISO 1524:2002 INTERNATIONAL STANDARD ISO 1524 Third edition 2000-07-01 Reference number ISO 1524:2000(E) Paints, varnishes and printing inks Determination of fineness of grind Peintures et vernis Dtermination de la finesse de broyage EN ISO 1524:2002
19、EN ISO 1524:2002 ii ISO 2510002:4)E( ISO 0002 All rithgs rreseved iii 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 techni
20、cal 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 w
21、ith the International Electrotechnical Commis- sion (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to
22、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 International Standard may be the subject of patent rights. ISO shall not be held res
23、ponsible for identifying any or all such patent rights. International Standard ISO 1524 was prepared by Technical Committee ISO/TC 35,Paints and varnishes, Subcom- mittee SC 9,General test methods for paints and varnishes. This third edition cancels and replaces the second edition (ISO 1524:1983). T
24、he changes are that theto gauge has been deleted and that the method of checking the groove depth has been deleted as other methods are now available. The standard now is also applicable to printing inks. 0m15m EN ISO 1524:2002 iii ANRETNIITOLAN TSDNADRAISO 2510002:4)E( ISO 0002 All rithgs rreseved
25、1 Paints, varnishes and printing inks Determination of fineness of grind 1Scope This International Standard is one of a series of standards dealing with the sampling and testing of paints, varnishes, printing inks and related products. It specifies a method for determining the fineness of grind of p
26、aints, inks and related products by use of a suitable gauge, graduated in micrometres. It is applicable to all types of liquid paints and related products. Of the three gauges referred to in 4.1 the gauge is suitable for general use, but theand especially thegauge will only provide reliable results
27、in the hands of skilled laboratory personnel. Particular caution is necessary in interpreting readings of less than. 2Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated refer
28、ences, subsequent amendments to, or revisions of, any of these publica- tions do not apply. However, parties to agreements based on this International Standard are encouraged to investi- gate the possibility of applying the most recent editions of the normative documents indicated below. For undated
29、 references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain reg- isters of currently valid International Standards. ISO 1513:1992,Paints and varnishes Examination and preparation of samples for testing. ISO 15528:1),Paints, varnishes and raw materia
30、ls for paints and varnishes Sampling. 3Term and definition For the purposes of this International Standard, the following term and definition applies. 3.1 fineness of grind reading obtained on a standard gauge under specified conditions of test, indicating the depth of the groove(s) of the gauge at
31、which discrete solid particles in the product are readily discernible 4Apparatus 4.1Gauge, consisting of a block of a hardened steel approximatelylong,wide andthick. It is recommended that, at least for use with water-dilutable paints, a block of stainless steel should be used. The top surface of th
32、e block shall be both plane and ground smooth and shall contain one or two grooves approxi- matelylong andwide parallel to the longer sides of the block. The depth of each groove shall be 1)To be published. 100m 50m25m 10m 175 mm65 mm13 mm 140 mm12,5 mm EN ISO 1524:2002 1 ISO :4251(0002)E 2 ISO 0002
33、 All rithgs rreseved uniformly tapered along its length from a suitable depth (for example,or) at one end to zero at the other end and shall be graduated as specified in Table 1. A diagram of a typical gauge is given in Figure 1. The depth of the groove at any position along its length shall not dep
34、art from its nominal value at any position across the groove depth by more than. The top surface of the block shall be finished by fine grinding or lapping; it shall be flat so that all points lie between two parallel planesapart and, in addition, at every position along the surface, the transverse
35、generator shall Table 1 Graduation of typical gauges and recommended ranges Dimensions in micrometres Maximum depth of grooveInterval of graduationsRecommended range 1001040 to 90 50515 to 40 252,55 to 15 Dimensions in millimetres Figure 1 Typical gauge 25m 50m100m 2,5m 12m EN ISO 1524:2002 2 ISO 25
36、10002:4)E( ISO 0002 All rithgs rreseved 3 be straight so that all points along it lie between two parallel straight linesapart. The top and bottom surfaces of the block shall be parallel within. NOTESteel gauges of approximate dimensions stated are suitable for the test, but other gauges giving simi
37、lar results may be used. The precision of the fineness-of-grind determination depends in part on which gauge is used (see clause 6). There- fore it is essential to identify the gauge (,or) when reporting results or specifying requirements. 4.2Scraper, consisting of a single- or double-edged steel bl
38、ade approximatelylong,wide and thick. The edge(s) on the long side(s) shall be straight and rounded to a radius of approximately. A drawing of a suitable scraper is shown in Figure 2. The scraper shall be periodically checked for wear, damage or warpage. Reject the scraper if inspection reveals dama
39、ge. NOTEThe top surface of the gauge may be used for routine checking of the scraper, provided it itself is not worn or warped. When not in use, the scraper should be stored in a container lined with velvet or similar soft material. 5Sampling Take a representative sample of the product to be tested
40、as described in ISO 15528. Examine and prepare each sample for testing, as described in ISO 1513. 6Procedure 6.1Carry out a preliminary determination to establish the size of gauge most suitable for the test and the approxi- mate fineness of grind of the test sample (see Table 1 and the note to 6.5)
41、. This approximate determination shall not be included in the results of the test. Dimensions (approximate) in millimetres Key 1Scraping edge, Figure 2 Suitable scraper 1m 25m 100m 50m25m 90 mm40 mm6 mm 0,25 mm R0,25 EN ISO 1524:2002 3 ISO :4251(0002)E 4 ISO 0002 All rithgs rreseved Then carry out t
42、he test in triplicate. 6.2Place the gauge (4.1), which shall be thoroughly clean and dry, on a flat, horizontal surface. 6.3Pour a sufficient amount of the sample into the deep end of the groove so that it overflows the groove slightly. Take care that during pouring the sample does not trap any air.
43、 6.4Grasp the scraper (4.2) between the thumbs and fingers of both hands and place it edgewise in contact with the surface of the gauge at the extreme deep end of the groove with the length of the scraper parallel to the width of the gauge. While holding the scraper perpendicular to the surface of t
44、he gauge and at right angles to the length of the groove, draw it at a uniform rate over the surface of the gauge to a point beyond the zero depth of the groove into . In the case of lithographic inks, or fluids of similar consistency, the time required to draw the scraper over the length of the gro
45、ove shall be not less than, in order to avoid too low a result. Apply sufficient downward pressure on the scraper to ensure that the groove is filled with the sample and that any surplus is removed. 6.5As quickly as possible (within seconds) after the completion of the drawdown, view the gauge from
46、the side in such a manner that the line of vision is at right angles to the long dimension of the groove and at an angle of not more thannor less thanto the surface of the gauge while it is in a light that will make the pattern of the sample in the groove readily visible. NOTEIf the rheology of the
47、sample is such that a smooth pattern is not obtainable after drawdown, a minimal quantity of an ap- propriate thinner or binder solution may be added to the sample by hand stirring, and the test repeated. Any dilution should be stated in the test report. In some instances, the dilution of the sample
48、 may lead to flocculation and the fineness of grind may be affected. 6.6Observe the point where the product first shows a predominately speckled appearance and, in particular, where awide band across the groove contains five to ten particles (see Figures 3 and 4). Disregard any scat- tered specks th
49、at may appear prior to the point where the predominately speckled appearance begins. Estimate the position of the upper limit of the band to the nearest: for thegauge; for thegauge; for thegauge. 6.7Clean the gauge and scraper carefully with a suitable solvent immediately after each reading. 1 s 2 s 5 s 3020 3 mm 5m100m 2m50m 1m25m EN ISO 1524:2002 4 ISO 2510002:4)E( ISO 0002 All rithgs rreseved 5 Figure 3 Typical reading on gauge Fig