1、November 2012 Translation by DIN-Sprachendienst.English price group 8No 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).IC
2、S 87.040!$Jl“1923973www.din.deDDIN EN ISO 9117-4Paints and varnishes Drying tests Part 4: Test using a mechanical recorder (ISO 9117-4:2012);English version EN ISO 9117-4:2012,English translation of DIN EN ISO 9117-4:2012-11Beschichtungsstoffe Trocknungsprfungen Teil 4: Verfahren mit einem mechanisc
3、hen Rekorder (ISO 9117-4:2012);Englische Fassung EN ISO 9117-4:2012,Englische bersetzung von DIN EN ISO 9117-4:2012-11Peintures et vernis Essais de schage Partie 4: Essai laide dun enregistreur mcanique (ISO 9117-4:2012);Version anglaise EN ISO 9117-4:2012,Traduction anglaise de DIN EN ISO 9117-4:20
4、12-11www.beuth.deDocument comprises 13 pagesIn case of doubt, the German-language original shall be considered authoritative.10.12 DIN EN ISO 9117-4:2012-11 2 A comma is used as the decimal marker. This standard has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes”, Subcommittee
5、SC 9 “General test methods for paints and varnishes” (Secretariat: BSI, United Kingdom) in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the Normenausschuss Beschichtungsstoffe und Bes
6、chichtungen (Coatings and Coating Materials Standards Committee), Working Committee NA 002-00-07 AA Allgemeine Prfverfahren fr Beschichtungsstoffe und Beschichtungen. DIN EN ISO 9117 consists of the following parts, under the general title Paints and varnishes Drying tests: Part 1: Determination of
7、through-dry state and through-dry time Part 2: Pressure test for stackability Part 3: Surface-drying test using ballotini Part 4: Method using a mechanical recorder Part 5: Modified Bandow-Wolff method Part 6: Print-free test The DIN Standards corresponding to the International Standards referred to
8、 in this document are as follows: ISO 1513 DIN EN ISO 1513 ISO 1514 DIN EN ISO 1514 ISO 2808 DIN EN ISO 2808 ISO 3270 DIN EN 23270 ISO 15528 DIN EN ISO 15528 DIN EN ISO 9117-4:2012-11 3 National Annex NA (informative) Bibliography DIN EN 23270, Paints, varnishes and their raw materials Temperatures
9、and humidities for conditioning and testing DIN EN ISO 1513, Paints and varnishes Examination and preparation of test samples DIN EN ISO 1514, Paints and varnishes Standard panels for testing DIN EN ISO 2808, Paints and varnishes Determination of film thickness DIN EN ISO 15528, Paints, varnishes an
10、d raw materials for paints and varnishes Sampling DIN EN ISO 9117-4:2012-11 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9117-4 August 2012 ICS 87.040 English Version Paints and varnishes Drying tests Part 4: Test using a mechanical recorder (ISO 9117-4
11、:2012) Peintures et vernis Essais de schage Partie 4: Essai laide dun enregistreur mcanique (ISO 9117-4:2012) Beschichtungsstoffe Trocknungsprfungen Teil 4: Verfahren mit einem mechanischen Rekorder (ISO 9117-4:2012) This European Standard was approved by CEN on 14 August 2012. CEN members are bound
12、 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 be obtained on application to the CEN
13、-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 the CEN-CENELEC Management Centre ha
14、s 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, Ireland, Italy, Latvia, Lithuania, Lu
15、xembourg, 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: Avenue Marnix 17, B-1000 Brussels 2012 C
16、EN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9117-4:2012: E Contents PageForeword .3Introduction 51 Scope 52 Normative references .53 Principle .53.1 Straight-line recorder .53.2 Circular recorder .54 Sampling 55 Test panels
17、65.1 Substrate .65.2 Coating of test panels 66 Test conditions and number of tests .67 Method A Using a straight-line drying-time recorder .67.1 Apparatus 67.2 Procedure 68 Method B Using a circular drying-time recorder .78.1 Apparatus 78.2 Procedure 79 Classification of drying stages 810 Precision
18、911 Test report .92DIN EN ISO 9117-4:2012-11 EN ISO 9117-4:2012 (E) Foreword This document (EN ISO 9117-4:2012) 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 DI
19、N. 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 February 2013, and conflicting national standards shall be withdrawn at the latest by February 2013. Attention is drawn to the possibility that s
20、ome 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. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to im
21、plement this European Standard: Austria, 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, Roman
22、ia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 9117-4:2012 has been approved by CEN as a EN ISO 9117-4:2012 without any modification. 3DIN EN ISO 9117-4:2012-11 EN ISO 9117-4:2012 (E) IntroductionThe drying time of a coating is s
23、ignificant in determining when a freshly painted room, floor or stairway may be put back in use or when a freshly coated article may be handled or packaged. Slow drying might result in dirt pick-up or, on an exterior surface, moisture might cause a non-uniform appearance.The test described in this p
24、art of ISO 9117 is used to determine, using a mechanical recorder, the various stages of drying or curing in the dry-film formation of organic coatings for the purpose of comparing types of coating or ingredient changes, or both. To evaluate the stages of drying in a quantitative manner, the use of
25、the recorder under controlled environmental conditions is strongly recommended. The use of a mechanical recorder also offers a method of determining the drying characteristics of coatings that cannot be ascertained within the standard 8 h working day.This test is useful in comparing the behaviour, d
26、uring drying, of coatings of the same generic type. Determination of actual drying times should be conducted following procedures specified e.g. in ISO 9117-1 or ISO 9117-3.4DIN EN ISO 9117-4:2012-11 EN ISO 9117-4:2012 (E) 1 ScopeThis part of ISO 9117 specifies a test for determining the times taken
27、 to reach various stages of drying of organic coatings, using a mechanical straight-line or circular drying-time recorder. The use of a mechanical recorder is valuable in comparing the drying behaviour of coatings of the same generic type, when one coating might form a gel at a faster rate than anot
28、her or might resist scratching better than another. The test is intended to simulate the conditions which exist when painted articles are stacked upon each other.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, onl
29、y 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 samplesISO 1514, Paints and varnishes Standard panels for testingISO 2808, Paints and varnishes Det
30、ermination of film thicknessISO 3270, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testingISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling3 Principle3.1 Straight-line recorderIn method A (using a straight-line recorder)
31、, the coating is applied to glass strips measuring at least 300 mm 25 mm. The strips are positioned so that a stylus can be lowered into the wet film on each. The styluses move along the glass strips at a selected constant speed.3.2 Circular recorderIn method B (using a circular recorder), the coati
32、ng is applied to a glass plate measuring approximately 150 mm 150 mm. The drying-time recorder is immediately placed on the wet film and a stylus lowered into the film and moved in a 360 arc at a selected constant speed.4 SamplingTake a representative sample of the product to be tested (or of each p
33、roduct in the case of a multi-coat system), as described in ISO 15528.Examine and prepare each sample for testing, as described in ISO 1513.5DIN EN ISO 9117-4:2012-11 EN ISO 9117-4:2012 (E) 5 Test panels5.1 SubstrateUse clean glass panels as described in ISO 1514.5.2 Coating of test panelsPrepare ea
34、ch test panel in accordance with ISO 1514 and then coat it by the specified method with the product or system under test.The coating method and dry-film thickness shall be as specified by the manufacturer or as agreed between interested parties, and shall be included in the test report Clause 11, it
35、em c) 2).6 Test conditions and number of testsCarry out the procedure at least in duplicate at (23 2) C and ambient relative humidity, unless otherwise agreed (see also ISO 3270).7 Method A Using a straight-line drying-time recorder7.1 Apparatus7.1.1 Straight-line drying-time recorder, fitted with m
36、ultiple styluses 2 mm in diameter, with rounded tips, which are drawn over multiple coated glass panels, typically measuring 300 mm 25 mm, disposed parallel to each other. The stylus arm generally comes with 5 g weights that may be added to apply greater pressure on the styluses and thus record the
37、through-dry time. Other weights may be used as agreed between the interested parties. The speed can be varied to cover drying periods of 6 h, 12 h and 24 h.7.1.2 Magnifying glass.7.2 ProcedureApply the coating to the glass strips. Record the time of application. Immediately attach the glass strips t
38、o the recorder and lower the stylus arm so that it is at the starting position. Lower the styluses gently into position on their respective strips. Before use, always ensure that the tips of the styluses are clean and free from dried paint from previous tests. Switch on the motor and the styluses wi
39、ll be drawn along their respective strips by the stylus arm.Always mark the point on the glass strip where the stylus is first lowered into the wet film by use of a marker pen or a similar method. This will aid in measuring times along the strip during the assessment stage, as it is often not obviou
40、s at what point the track starts since paint flows back into the groove.After drying, evaluate the glass strips by reference to Figure 1 to determine the time at which the stage of interest was reached, and record this time. The use of a magnifying glass will enhance the evaluation. The drying time
41、is the quotient of the distance covered at each stage and the speed of the stylus.Determine the thickness, in micrometres, of the dried coating by one of the procedures specified in ISO 2808.6DIN EN ISO 9117-4:2012-11 EN ISO 9117-4:2012 (E) Key1 start2 set-to-touch time3 tack-free time4 hard-dry tim
42、e5 through-dry timeFigure 1 Stages of drying using a straight-line drying-time recorder8 Method B Using a circular drying-time recorder8.1 Apparatus8.1.1 Circular drying-time recorder, with a motor that is mounted on a rubber-shod tripod. The motor shaft is oriented vertically, with a pivoting-arm a
43、ssembly attached to it to operate a counterpoised vertical stylus, made of PTFE, with an end approximately 10 mm in diameter. The PTFE stylus, typically weighted with a load of 12 g, scribes an arc in the drying film. The arm assembly includes a counterweight to permit adjustment of the pressure on
44、the needle to near zero. The stylus is moved in a circular arc at a selected constant speed. Recorders are available to cover various drying times, such as 1 h, 6 h, 12 h or 24 h.8.1.2 Transparent template, with scale graduations corresponding to the particular motor speed, for timing the various st
45、ages of drying revealed by differences observed in the scribed pattern.8.1.3 Magnifying glass.8.2 ProcedurePrepare test panels as specified in Clause 5. Glass plates measuring about 150 mm 150 mm are used for the determination of drying times with this type of recorder.Apply the coating to a glass p
46、late. Record the time of application. Immediately attach the glass plate to the recorder, and lower the stylus gently into position on the panel. Before use, always ensure that the tip of the stylus is clean and free from dried paint from previous tests. Switch on the motor so the stylus is drawn ro
47、und the glass plate.Always mark the point where the stylus is first lowered into the wet film by use of a marker pen or a similar method. This will aid in measuring times along the track during the assessment stage, as it is often not obvious at what point the track starts since paint flows back int
48、o the groove.After drying, use the transparent template to evaluate the glass plate by reference to Figure 2 to determine the time at which the stage of interest was reached, and record this time. The use of a magnifying glass will enhance the evaluation. The drying time is the quotient of the distance covered at each stage and the speed of the stylus.Determine the thickness, in micrometres, of the dried coating by one of the procedures specified in ISO 2808.7DIN EN
