1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 9117-5:2012Paints and varnishes Drying testsPart 5: Modified Bandow-Wolff testBS EN ISO 9117-5:2012 BRITISH STANDARDNational forewordThis British Standard is the UK imp
2、lementation of EN ISO 9117-5:2012.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 does not purport to include all the necess
3、ary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012ISBN 978 0 580 69317 5 ICS 87.040 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was
4、 published under the authority of the Standards Policy and Strategy Committee on 31 October 2012.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9117-5 August 2012 ICS 87.040 English Version Paints and varnishes - Drying tests -
5、 Part 5: Modified Bandow-Wolff test (ISO 9117-5:2012) Peintures et vernis - Essais de schage - Partie 5: Essai Bandow-Wolff modifi (ISO 9117-5:2012) Beschichtungsstoffe - Trocknungsprfungen - Teil 5: Abgewandeltes Bandow-Wolff-Vefahren (ISO 9117-5:2012)This European Standard was approved by CEN on 1
6、4 August 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 standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may b
7、e 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 made by translation under the responsibility of a CEN member into its own language and notified to
8、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, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, I
9、reland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Aven
10、ue 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 9117-5:2012: EBS EN ISO 9117-5:2012BS EN ISO 9117-5:2012EN ISO 9117-5:2012 (E) 3 Foreword This document (EN ISO 9117-5:2012) has been prepared b
11、y 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 given the status of a national standard, either by publication of an identical text or by endors
12、ement, at the latest by February 2013, and conflicting national standards shall be withdrawn at the latest by February 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 iden
13、tifying any or all such patent rights. 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 Yugo
14、slav 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 the United Kingdom. Endorsement notice The text of ISO 9117-5:2012 h
15、as been approved by CEN as a EN ISO 9117-5:2012 without any modification. BS EN ISO 9117-5:2012 ISO 9117-5:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv Introduction v 1 Scope 1 2 Normative references .1 3 Apparatus 1 4 Sampling 2 5 Test panels . 25.1 Substrate .25.2 Preparation a
16、nd coating 25.3 Thickness of coating 26 Procedure 26.1 Test conditions .26.2 General .26.3 Test for drying stage 1 .26.4 Test for drying stage 2 .36.5 Test for drying stages 3 to 7 .3 7 Precision . 3 8 Test report . .3 Bibliography . .5BS EN ISO 9117-5:2012ISO 9117-5:2012(E)ForewordISO (the Internat
17、ional 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 body interested in a subject for which a technical committee has bee
18、n 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 Electrotechnical Commission (IEC) on all matters of electrotechnical stand
19、ardization.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 by the technical committees are circulated to the member bodies for v
20、oting. 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 rights. ISO shall not be held responsible for identifying any or all su
21、ch patent rights.ISO 9117-5 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.ISO 9117 consists of the following parts, under the general title Paints and varnishes Drying tests: Part 1: Determination of through-dry
22、state and through-dry time Part 2: Pressure test for stackability Part 3: Surface-drying test using ballotini Part 4: Test using a mechanical recorder Part 5: Modified Bandow-Wolff test Part 6: Print-free testiv ISO 2012 All rights reservedBS EN ISO 9117-5:2012ISO 9117-5:2012(E)IntroductionWith rega
23、rd to drying stages 2 to 7 (see Table 1) defined in this part of ISO 9117, it should be noted that the drying of different coats applied to the same substrate does not proceed uniformly. The processes which take place during film formation in the case of physical drying or oxidative/reaction-control
24、led drying are so different that a clear distinction between grades is not possible. Therefore, when testing using this part of ISO 9117, it is possible that, within the range covered by drying stages 4 to 7, a higher drying stage might be reached before a lower drying stage. For this reason, a diff
25、erence of one drying stage within this range does not necessarily mean a specific difference in drying speed. Elasto-plastic coatings might never reach drying stages 5 to 7. If the surface is tacky, it is also possible that the high drying stages will not be reached, although the surface appears com
26、pletely dry. Generally, the visible changes involved in drying stages 4 and 6 (see Table 1) can be evaluated more exactly on glossy surfaces than on matt or structured surfaces.The test described in this part of ISO 9117 should therefore be seen as a technological tool with relatively limited useful
27、ness. The test (if used in connection with other test procedures) should, however, ensure that the interested parties can agree on a measure for the performance characteristic referred to as “drying speed”. ISO 2012 All rights reserved vBS EN ISO 9117-5:2012BS EN ISO 9117-5:2012Paints and varnishes
28、Drying tests Part 5: Modified Bandow-Wolff test1 ScopeThis part of ISO 9117 specifies a method for determining whether coatings, including those produced using multi-coat systems, have reached various stages of drying (see Table 1). Furthermore, it allows the drying speed to be assessed.In the case
29、of plastic coatings, it is only possible to determine to a limited extent whether drying stages 4 to 7 have been reached, as the elasto-plastic behaviour of these coatings cannot be evaluated on the basis of a temporary visible change in the coating surface.2 Normative referencesThe following refere
30、nced 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 amendments) applies.ISO 1513, Paints and varnishes Examination and preparation of test sam
31、plesISO 1514, Paints and varnishes Standard panels for testingISO 2808, Paints and varnishes Determination of film thicknessISO 3270, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testingISO 9117-3, Paints and varnishes Drying tests Surface-drying test
32、 using ballotiniISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling3 Apparatus3.1 Small transparent glass spheres (ballotini), as specified in ISO 9117-3.3.2 Brush, soft-haired.3.3 Paper discs, diameter 26 mm, made of commercial typing paper with a mass per unit area of
33、60 g/m2to 80 g/m2.3.4 Rubber discs, diameter (22 1) mm, thickness (5,0 0,5) mm, hardness (50 5) IRHD1).3.5 Weights, of 20 g, 200 g, 2 kg and 20 kg.3.6 Stopwatch.1) International rubber hardness degrees (see ISO 48).INTERNATIONAL STANDARD ISO 9117-5:2012(E) ISO 2012 All rights reserved 1BS EN ISO 911
34、7-5:2012ISO 9117-5:2012(E)4 SamplingTake a representative sample of the product to be tested (or of each product in the case of a multi-coat system), in accordance with ISO 15528.Examine and prepare each sample for testing, in accordance with ISO 1513.5 Test panels5.1 SubstrateUse standard test pane
35、ls as specified in ISO 1514, made of steel, 150 mm long, 95 mm wide and 0,5 mm to 2 mm thick, as the substrate for the test coating.5.2 Preparation and coatingPrepare each test panel in accordance with ISO 1514 and then coat it by the specified method with the product or system under test. For clean
36、ing, metal brushes are not allowed.5.3 Thickness of coatingDetermine the wet-film thickness, in micrometres, of the coating, near to those positions on the test panel at which the drying stage reached by the coating is to be determined, by one of the methods specified in ISO 2808.6 Procedure6.1 Test
37、 conditionsCarry out the procedure in triplicate at (23 2) C and ambient relative humidity, unless otherwise agreed (see also ISO 3270).6.2 GeneralIn cases when nominal drying-time values are available, determine whether a particular drying stage has been reached after the respective drying time. To
38、 determine the drying time required to reach an agreed drying stage, carry out determinations at selected intervals.6.3 Test for drying stage 1Perform the test specified in ISO 9117-3.Pour approximately 0,5 g of ballotini (3.1) on to the surface of the coating from a height of not less than 50 mm an
39、d not more than 150 mm.NOTE It is convenient to pour the ballotini down a glass tube of appropriate length and with an internal diameter of approximately 25 mm, in order to avoid excess scattering of the ballotini and thus enable further tests to be made, if necessary, in other areas of the same pan
40、el.After 10 s, hold the panel at an angle of 20 to the horizontal and brush the coating lightly with a soft-haired brush (3.2).Examine the surface of the coating, using normal corrected vision. Drying stage 1 has been reached if all the ballotini can be brushed off without damage to the surface (see
41、 Table 1).2 ISO 2012 All rights reservedBS EN ISO 9117-5:2012ISO 9117-5:2012(E)6.4 Test for drying stage 2Place a paper disc (3.3) and, on top of that, a rubber disc (3.4) on the test panel. Then place a weight (20 g) centrally on the rubber disc. After 60 s, remove the weight and rubber disc. Drop
42、the test panel vertically from a height of approximately 30 mm on to a wooden support approximately 20 mm thick with a flat horizontal surface (e.g. a table top). If the paper disc drops off, drying stage 2 (see Table 1) has been reached.6.5 Test for drying stages 3 to 7Carry out the test as specifi
43、ed in 6.4, but using the following loads: for drying stage 3, use a 200 g load; for drying stages 4 and 5, use a 2 kg load; for drying stages 6 and 7, use a 20 kg load.Determine whether the coating fulfils the requirements for the respective drying stage, as given in Table 1.Table 1 Drying-stage cha
44、racteristicsDrying stage Type of test Test result1 Pouring ballotini on to surface of coatingThe ballotini can be brushed away easily and completely with a soft brush.2 Load with 20 g The paper does not stick to the coating.3 Load with 200 g The paper does not stick to the coating.4 Load with 2 kg T
45、he paper does not stick to the coating.In the area acted on by the load, the coating surface shows visible changes.5 Load with 2 kg The paper does not stick to the coating.In the area acted on by the load, the coating surface shows no visible changes.6 Load with 20 kg The paper does not stick to the
46、 coating.In the area acted on by the load, the coating surface shows visible changes.7 Load with 20 kg The paper does not stick to the coating.In the area acted on by the load, the coating surface shows no visible changes.7 PrecisionNo precision data are currently available.8 Test reportThe test rep
47、ort shall include the following information:a) all details necessary to identify the product under test;b) a reference to this part of ISO 9117 (ISO 9117-5);c) details of the preparation of the test panels, including1) the thickness and surface preparation of the substrate (see 5.1 and 5.2), ISO 201
48、2 All rights reserved 3BS EN ISO 9117-5:2012ISO 9117-5:2012(E)2) the method of application of the test coating to the substrate, including the duration and conditions of drying between coats in the case of a multi-coat system (see 5.2),3) the wet-film thickness, in micrometres, of the coating and th
49、e method of measurement in ISO 2808 used (see 5.3);d) the result of each of the three determinations in terms of the drying stages, as defined in Table 1, together with the respective drying times;e) any deviation, by agreement or otherwise, from the test procedure specified;f) any unusual features (anomalies) observed during the test;g) the date of the test.4 ISO 2012 All rights reservedBS EN ISO 9117-5:2012ISO 9117-5:2012(E)Bibliography1 ISO 48, Rubber, vulcanized or thermoplastic Determination of hardness (
