1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 13632:2012Binders for paints andvarnishes Rosin Samplingand sample preparation forcolour measurement (ISO13632:2012)BS EN ISO 13632:2012 BRITISH STANDARDNational forewo
2、rdThis British Standard is the UK implementation of EN ISO13632:2012.The UK participation in its preparation was entrusted to TechnicalCommittee STI/3, Paints, media and related products.A list of organizations represented on this committee can beobtained on request to its secretary.This publication
3、 does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2012. Published by BSI StandardsLimited 2012ISBN 978 0 580 70873 2ICS 87.060.20Compliance with a British Standard cannot confer immunity fromleg
4、al obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 July 2012.Amendments issued since publicationDate Text affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 13632 July 2012 ICS 87.060.20 English Version Binders for
5、 paints and varnishes - Rosin - Sampling and sample preparation for colour measurement (ISO 13632:2012) Liants pour peintures et vernis - Colophane - chantillonnage et prparation des chantillons pour le mesurage de la couleur (ISO 13632:2012) Bindemittel fr Beschichtungsstoffe - Kolophonium - Proben
6、ahme und Probenvorbereitung fr die Messung der Farbzahl (ISO 13632:2012) This European Standard was approved by CEN on 30 June 2012. 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 sta
7、ndard 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
8、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 Re
9、public, 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, Turkey and United Kingdom. EUROPE
10、AN 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. EN ISO 13632:2012: EBS EN ISO 136
11、32:2012EN ISO 13632:2012 (E) 3 Foreword This document (EN ISO 13632:2012) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of which is held by DIN. This European Standard shall be giv
12、en the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2013, and conflicting national standards shall be withdrawn at the latest by January 2013. Attention is drawn to the possibility that some of the elements of this document may
13、 be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria,
14、 Belgium, Bulgaria, 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, S
15、witzerland and the United Kingdom. Endorsement notice The text of ISO 13632:2012 has been approved by CEN as a EN ISO 13632:2012 without any modification. BS EN ISO 13632:2012ISO 13632:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Normative references . 13 Sampling and s
16、ample preparation 13.1 Procedure for Gardner colour measurement of neat rosin . 13.2 Procedure for Gardner colour measurement of rosin in solution . 13.3 Procedure for USDA colour 24 Colour measurement 25 Test report . 2Annex A (informative) Correlation between Gardner colour scale and USDA scale 3B
17、ibliography . 7BS EN ISO 13632:2012ISO 13632:2012(E)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 carried out through ISO technical committees. Eac
18、h 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 Internation
19、al 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
20、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 p
21、atent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 13632 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 10, Test methods for binders for paints and varnishes.iv ISO 2012 All rights reservedBS EN ISO 13632:2012INTERN
22、ATIONAL STANDARD ISO 13632:2012(E)Binders for paints and varnishes Rosin Sampling and sample preparation for colour measurement1 ScopeThis International Standard specifies a procedure for sampling of rosin and rosin derivatives from drums, the molten/liquid form, flakes, pellets or pastillesand prep
23、aration of the samples for colour measurement. The method to be used for the colour measurement is specified in other standards. The colour of the rosin can be measured with neat rosin or rosin in solution.The two most commonly used colour-measurement methods are those based on the USDA1)scale and t
24、he Gardner colour scale. Annex A provides information on the correlation between these two scales.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
25、edition of the referenced document (including any amendments) applies.ISO 4630-1, Clear liquids Estimation of colour by the Gardner colour scale Part 1: Visual methodISO 4630-2, Clear liquids Estimation of colour by the Gardner colour scale Part 2: Spectrophotometric methodASTM D509, Standard Test M
26、ethods of Sampling and Grading Rosin3 Sampling and sample preparation3.1 Procedure for Gardner colour measurement of neat rosinThe sample to be tested shall consist of freshly broken lumps and shall be free of dust and finely divided material.Melt a sufficient amount of material in a clean container
27、 using an oven, hotplate, heat gun, sand bath or oil bath in an inert-gas atmosphere, taking care to avoid overheating. Stir slowly, avoiding the formation of bubbles. Melt the sample completely, but do not heat it above the temperature necessary for the sample to pour readily. The time from the beg
28、inning of heating to pouring the sample shall not exceed 15 min.Pour the molten sample into a test tube or cuvette and, while the sample is still molten, insert the tube or cuvette into the measurement instrument and measure the colour.3.2 Procedure for Gardner colour measurement of rosin in solutio
29、nThe sample to be tested shall consist of freshly broken lumps and shall be free of dust and finely divided material.Prepare a 50,0:50,0 (by mass) solution of the test material in analytical-grade toluene in a clean beaker or flask. Stir or shake gently at room temperature until the rosin is dissolv
30、ed and pour the solution into a test tube or cuvette.1) USDA United States Department of Agriculture. ISO 2012 All rights reserved 1BS EN ISO 13632:2012ISO 13632:2012(E)Insert the test tube or cuvette into the measurement instrument and measure the colour. The time from the beginning of sample prepa
31、ration to pouring the sample shall not exceed 15 min.3.3 Procedure for USDA colourThe sample to be tested shall consist of freshly broken lumps and shall be free of dust and finely divided material.Melt a sufficient amount of material in a small beaker, using an oven, hotplate, heat gun, sand bath o
32、r oil bath in an inert-gas atmosphere, taking care to avoid overheating. Stir slowly, avoiding the formation of bubbles. Melt the sample completely, but do not heat it above the temperature necessary for the sample to pour readily.Prepare a sample for testing by pouring the molten material into a mo
33、uld measuring 22,2 mm in the direction in which it will be viewed during colour measurement. The time from the beginning of heating to pouring the sample shall not exceed 15 min.4 Colour measurementMeasure the Gardner colour as described in ISO 4630-1 or ISO 4630-2 or the USDA colour as described in
34、 ASTM D509.5 Test reportIn addition to the information requested in the test reports given in ISO 4630-1, ISO 4630-2 and ASTM D509, state the method of sample preparation.2 ISO 2012 All rights reservedBS EN ISO 13632:2012ISO 13632:2012(E)Annex A (informative) Correlation between Gardner colour scale
35、 and USDA scale2)A.1 GeneralWhen testing rosin, it has historically been customary to use the USDA scale as defined in ASTM D509. Some users nevertheless prefer to use the Gardner scale as defined in ISO 4630-1. This annex describes a method of calculating the Gardner scale values which are equivale
36、nt to the rosin standards used in ASTM D509, taking into consideration the different path lengths used by the two methods.The visual method, specified in ISO 4630-1, of estimation of colour by the Gardner colour scale requires the test sample to be in a glass test tube, preferably of inside diameter
37、 10,65 mm. This is usually approximated by a square cuvette with a path length of 10 mm. The USDA scale uses a 22,2 mm cube of material.A.2 ProcedureThe CIE x,y chromaticity coordinates and luminous transmittance Y corresponding to the 18 standards making up the Gardner colour scale have been taken
38、from ISO 4630-1.The spectral-transmittance data for the 12 standards making up the USDA scale have been taken from ASTM D509. To find the equivalent values of transmittance for a 10 mm path length, these values were raised to the power of 10,0/22,2. This calculation assumes that Beers law can be app
39、lied to the samples.Table A.1 shows the x,y and Y data for the Gardner colour scale and similar data calculated from the “corrected” USDA scale transmittance data. Note that the spectral-transmittance values for the three lightest USDA scale values, XA, XB and XC, are not given in ASTM D509. In orde
40、r to be able to determine their Gardner equivalents, these spectral-transmittance values were measured using the actual glass standards specified in ASTM D509 and a path length of 22,2 mm.2) This annex applies to neat rosin and rosin derivatives. ISO 2012 All rights reserved 3BS EN ISO 13632:2012ISO
41、 13632:2012(E)Table A.1 x,y and Y data for the Gardner colour scale and similar data calculated from the USDA scaleGardner colour scale USDA scalex y Y x y Y1 0,317 7 0,330 3 80,0 XC 0,324 9 0,343 2 92,622 0,323 3 0,335 2 79,0 XB 0,343 6 0,371 9 89,223 0,332 9 0,345 2 76,0 XA 0,364 6 0,400 6 84,844
42、0,343 7 0,364 4 75,0 X 0,380 5 0,415 8 79,205 0,355 8 0,384 0 74,0 WW 0,398 1 0,430 3 73,916 0,376 7 0,406 1 71,0 WG 0,414 8 0,442 2 69,157 0,404 4 0,435 2 67,0 N 0,434 8 0,453 9 63,568 0,420 7 0,449 8 64,0 M 0,456 6 0,463 3 57,029 0,434 3 0,464 0 61,0 K 0,481 2 0,468 8 49,2310 0,450 3 0,476 0 57,0
43、I 0,506 5 0,467 5 41,2211 0,484 2 0,481 8 45,0 H 0,532 6 0,457 4 31,8412 0,507 7 0,463 8 36,0 G 0,555 7 0,439 7 24,6913 0,539 2 0,445 8 30,0 F 0,604 0 0,395 4 15,5014 0,564 6 0,427 0 22,0 E 0,629 7 0,369 9 8,3815 0,585 7 0,408 9 16,0 D 0,670 6 0,329 2 2,7916 0,604 7 0,392 1 11,017 0,629 0 0,370 1 6,
44、018 0,647 7 0,352 1 4,0Intermediate points were then calculated for the Gardner colour scale by linear interpolation to an accuracy of 0,1 scale units and, for each point on the USDA scale, the nearest point on this expanded Gardner colour scale was determined by finding the smallest difference in t
45、he x,y chromaticity space. The resulting Gardner values are tabulated in Table A.2.Table A.2 Nearest Gardner equivalent to each point on the USDA scaleUSDA scale Gardner colour scale Colour difference EXC 2,5 7,32XB 4,3 7,13XA 5,6 7,06X 6,2 5,59WW 6,8 3,51WG 7,6 2,22N 8,6 3,41M 9,9 6,21K 11,2 6,81I
46、11,9 6,30H 12,7 8,33G 13,5 3,88F 15,9 13,25E 17,0 11,66D 18,0 9,174 ISO 2012 All rights reservedBS EN ISO 13632:2012ISO 13632:2012(E)Also shown in Table A.2 is the CIELAB colour difference E between each USDA scale colour and its nearest Gardner equivalent.Table A.3 gives the CIE x,y chromaticity co
47、ordinates and luminous transmittance Y corresponding to the Gardner values equivalent to the values on the USDA scale.Table A.3 CIE coordinates corresponding to the Gardner values equivalent to the values on the USDA scaleUSDA scale Gardner colour scale x y YXC 2,5 0,328 1 0,340 2 77,5XB 4,3 0,347 3
48、 0,370 3 74,7XA 5,6 0,368 3 0,397 3 72,2X 6,2 0,382 2 0,411 9 70,2WW 6,8 0,398 9 0,429 4 67,8WG 7,6 0,414 2 0,444 0 65,2N 8,6 0,428 9 0,458 3 62,2M 9,9 0,448 7 0,474 8 57,4K 11,2 0,488 9 0,478 2 43,2I 11,9 0,505 4 0,465 6 36,9H 12,7 0,529 8 0,451 2 31,8G 13,5 0,551 9 0,436 4 26,0F 15,9 0,602 8 0,393
49、 8 11,5E 17,0 0,629 0 0,370 1 6,0D 18,0 0,647 7 0,352 1 4,0It is possible that a different form of interpolation, e.g. cubic spline or Lagrange, would give slightly different results. However, the differences between such results and those found by linear interpolation, as tabulated above, are likely to be very small.Figure A.1 shows the correlation between the two scales. ISO 2012 All rights reserved 5BS EN ISO 13632:2012ISO 13632:2012(E)KeyX USDA scaleY Gardner colour scaleFigure A.1 Correlation between the Gardner colo
