DIN EN 13966-1-2003 Determination of the transfer efficiency of atomising and spraying equipment for liquid coating materials - Part 1 Flat panels German version EN 13966-1 2003《液态.pdf

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1、ICS 87.100Bestimmung des Auftragswirkungsgrades von Spritz- und Sprhgerten fr Beschichtungsstoffe Teil 1: FlchenbeschichtungEuropean Standard EN 13966-1 : 2003 has the status of a DIN Standard.A comma is used as the decimal marker.National forewordThis standard has been prepared by CEN/TC 271 Surfac

2、e treatment equipment Safety (Secretariat:Germany).The responsible German body involved in its preparation was the Normenausschuss Maschinenbau(Mechanical Engineering Standards Committee), Technical Committee Oberflchenbehandlungsgerte Sicherheit.Ref. No. DIN EN 13966-1 : 2003-09English price group

3、11 Sales No. 111112.03DEUTSCHE NORMEN 13966-1EN comprises 19 pages. No part of this standard may be reproduced without the 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).Det

4、ermination of the transfer efficiency of atomisingand spraying equipment for liquid coating materialsPart 1: Flat panelsEnglish version of DIN EN 13966-1September 2003English versionICS 87.100Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for StandardizationComit Europen de

5、 NormalisationEuropisches Komitee fr Normung 2003. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Ref. No. EN 13966-1 : 2003 EDtermination de lfficacit de trans-fert des quipements datomisation/pulvrisation pour produits de revte-ment liquides

6、Partie 1: PanneauxplansBestimmung des Auftragswirkungs-grades von Spritz- und Sprhgertenfr Beschichtungsstoffe Teil 1:FlchenbeschichtungThis European Standard was approved by CEN on 2002-11-28.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for

7、 giving this European Standard the status of anational standard without any alteration.Up-to-date lists and bibliographical references concerning such national stand-ards may be obtained on application to the Central Secretariat or to any CENmember.The European Standards exist in three official vers

8、ions (English, French, German).A version in any other language made by translation under the responsibility of aCEN member into its own language and notified to the Central Secretariat has thesame status as the official versions.CEN members are the national standards bodies of Austria, Belgium, the

9、CzechRepublic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland,Ireland, Italy, Luxembourg, the Netherlands, Norway, Portugal, Slovakia, Spain,Sweden, Switzerland, and the United Kingdom.EN 13966-1April 2003Determination of the transfer efficiency of atomisingand spraying equipment for li

10、quid coating materialsPart 1: Flat panelsPage 2EN 13966-1 : 2003ContentsPageForeword21 Scope.32 Normative references 43 Terms and definitions44 Principle 55 Test procedure .56 Test and measurement methods76.1 Test environment .76.2 Determination of coating material physical properties .76.3 Test she

11、et and background panel86.4 Test rig configuration106.5 Atomiser characteristics.106.6 Application of the coating material to the test sheet 116.7 Coating finish quality and performance116.8 Coating film drying/curing.116.9 Determination of coating material mass.116.10 Determination of mass of coati

12、ng material delivered by the atomiser .127 Calculation128 Test report 139Acuracy.14Annex A (normative) Measurement tolerances15Annex B (informative) Example calculations16Annex C (content and structure normative; lay-out informative) Test summary form for flat panel coating 17Bibliography 19Foreword

13、This document has been prepared by Technical Committee CEN/TC 271, “Surface treatment equipment Safety”,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 orby endorsement, and conflicting nation

14、al standards shall be withdrawn, by October 2003 at the latest.In accordance with the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard:Austria, Belgium, the Czech Republic, Denmark, Finland, France, Germany

15、, Greece, Hungary, Iceland, Ireland,Italy, Luxembourg, Malta, the Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland, and theUnited Kingdom.Page 3EN 13966-1 : 2003IntroductionTransfer efficiency is a performance parameter that is used to express the effectiveness of spraying or atom

16、isingequipment in transferring a coating material to the surface of an object.Transfer efficiency is defined as the ratio of coating solids laid down on the surface of an object and forming the dryfilm to the total solid content of the coating material delivered by the atomising and spraying equipme

17、nt, expressedas a percentage.The use of atomising and spraying equipment with a high transfer efficiency therefore has economic andenvironmental benefits.A standard and reproducible procedure for determining the transfer efficiency is required to: enable a reliable comparison of atomising and sprayi

18、ng equipment through transfer efficiency data quoted bymanufacturers; provide data to show that the atomising and spraying equipment meets minimum values stipulated in health,safety and environmental legislation.1 ScopeThis European Standard specifies a laboratory procedure for determining the trans

19、fer efficiency of atomising andspraying equipment for the application of liquid coating materials onto flat panels. A second part (to be prepared)will cover coating material application to other substrate geometries and provide a method for the determination oftransfer efficiency for atomising and s

20、praying equipment with electrostatic support.This standard applies to the determination of the transfer efficiency of atomising and spraying equipment, such as: conventional air atomiser (high air pressure); HVLP-atomiser (high volume low pressure); LVLP-atomiser (low volume low pressure); airless a

21、tomiser (hydraulic pressure); air assisted airless atomiser; vibratory or rotary atomiser (bells); electrostatic supported atomiser.Two methods of determination are included in the standard.The transfer efficiency value resulting from the application of this standard procedure expresses the potentia

22、lperformance of atomising and spraying equipment for comparison of different types or models. The value may ormay not be attained in use, where the working conditions and operator practice are likely to differ from those of thestandard test method.The determined transfer efficiency is valid only in

23、conjunction with the parameters shown in the test summary form,see Annex C.Page 4EN 13966-1 : 20032 Normative referencesThis European Standard incorporates, by dated or undated reference, provisions from other publications. Thesenormative references are cited at appropriate places in the text and th

24、e publications are listed hereafter. For datedreferences, subsequent amendments to or revisions of any of these publications apply to the European Standardonly when incorporated in it by amendment or revision. For undated references, the latest edition of the publicationreferred to applies (includin

25、g amendments).EN 971-1, Paints and varnishes Terms and definitions for coating materials Part 1: General terms.EN 1953, Atomising and Spraying Equipment for Coating Materials Safety requirementsprEN 12215, Coating plants Spray booths for application of organic liquid coating materials Safety require

26、ments.prEN 13355, Coating plants Combined booth Safety requirements.EN 21512, Paints and Varnishes Sampling of products in liquid or paste form.EN ISO 1513, Paints and Varnishes Examination and preparation of samples for testing (ISO 1513:1992).EN ISO 2431, Paints and varnishes Determination of flow

27、 time by use of flow cups (ISO 2431:1993, includingTechnical Corrigendum 1:1994).EN ISO 3219, Plastics Polymers/resins in the liquid state or as emulsions or dispersions Determination ofviscosity using a rotational viscometer with defined shear rate (ISO 3219:1993).EN ISO 3251, Paints and varnishes

28、Determination of non-volatile matter of paints, varnishes and binders forpaints and varnishes (ISO 3251:1993).ISO 2811-1, Paints and varnishes Determination of density Part 1: Pyknometer method.ISO 2811-2, Paints and varnishes Determination of density Part 2: Immersed body (plummet) method.ISO 2811-

29、3, Paints and varnishes Determination of density Part 3: Oscillation method.ISO 2811-4, Paints and varnishes Determination of density Part 4: Pressure cup method.ISO 2884, Paints and varnishes Determination of viscosity using rotary viscometer.ISO 9944, Plastics; phenolic resins; determination of el

30、ectrical conductivity of resins extracts.3 Terms and definitionsFor the purposes of this standard, the terms and definitions given in EN 971-1 apply. For the purposes of thisstandard, the following terms and definitions also apply:3.1application timetime during which coating material is applied to t

31、he test sheet during the transfer efficiency test3.2atomising and spraying equipmentany type of device which can be used to atomise coating materials. Atomising may be achieved by air,hydromechanically (airless) with or without air assistance, or by centrifugal forces such as rotating bells or discs

32、, asdefined in EN 19533.3background panelrigid plate placed behind the test sheet to support it and enable a flat surface to be obtainedPage 5EN 13966-1 : 20033.4coating materialliquid product, pigmented or non pigmented, applied to a substrate, as defined in EN 971-13.5coating filmfilm possessing p

33、rotective, decorative and/or other specific properties on a substrate, as defined in EN 971-13.6solid contentnon-volatile portion of a coating material, as defined in EN 971-13.7spray patternvisual pattern width of the coating deposit on a vertical panel3.8stroke speedvelocity of spray pattern trave

34、rse across the face of the test sheet; this is equivalent to the velocity of travel of theatomiser relative to the test sheet; either the atomiser or the test sheet can be moved3.9test rigstructure for supporting the background panel and maintaining the atomiser test sheet distance constant3.10test

35、sheetflat sheet of aluminium foil to which coating material is applied for the determination of the transfer efficiency3.11test method 1indirect method in which the mass of coating material delivered by the atomiser is determined from the fluid flowvolume. It can be done by measurement with a fluid

36、flow meter or by calculation from gravimetric measurement.The atomiser spray pattern is fully developed before it reaches the edge of the test sheet and is maintainedconstant over the test width3.12test method 2direct method in which the mass of coating material delivered by the atomiser within the

37、test sheet dimensions, isdetermined gravimetrically (by weighing). The atomiser is triggered on and off within the test sheet dimensions3.13transfer efficiencydefined as the ratio of the mass of coating material solids deposited on an object to the mass of coating materialsolids atomised, expressed

38、as a percentage4PrincipleThe transfer efficiency of atomising and spraying equipment is determined by measuring directly or indirectly themass of coating material solids delivered by the atomiser and the mass of dry coating material deposited on thetest sheet.5 Test procedureThe test procedure defin

39、es the steps to be carried out in the determination and the conditions under which the testis conducted as well as the minimum reporting requirements.Page 6EN 13966-1 : 2003A transfer efficiency determination for a particular atomiser consists of at least three independent and consecutivetests of th

40、e transfer efficiency under the same conditions.The atomiser transfer efficiency, under the prevailing conditions, is reported as the mean of the values obtained. Ifan individual test result differs from the mean value by more than 1% the cause of the variation should beinvestigated and the determin

41、ation repeated.Step Action Reference1 Record details of atomising and spraying equipment to be tested.Use the form structure in Annex Cfor recording data.2Record details of coating material to be used for transferefficiency test.See 6.2.1.3Sample coating material for the test, thin and/or mix accord

42、ing tocoating material manufacturer specification. Record preparationdetails.See 6.2.2.4Determine and record coating material solids content, viscosityand density.See 6.2.2.5 Set up the test rig to configure the atomiser, panel and sheet. See 6.4.6 Set atomising and spraying equipment to required se

43、ttings. See 6.5.2.7Determine and record atomising and spraying equipmentdynamic parameters and coating material characteristics.Measure the coating material flow rate and spray characteristics.Record coating material and air flow rate, atomiser stroke or testsheet traverse speed, to obtain required

44、film thickness and theminimum/maximum dimensions of the spray pattern.See 6.5, 6.6 and 6.7.8Clean, dry and weigh the test sheets. Indelibly label test sheetsand record identification numbers and weights.See 6.3.9 Measure and record test environmental conditions. See 6.1.10 Re-determine coating prope

45、rties (as necessary).11Clean atomising and spraying equipment. Charge with coatingmaterial and measure coating material temperature. Setequipment parameters and mount in the test rig.11a Method 1: Determine fluid flow rate See 6.5.3.11bMethod 2: Measure and record initial weight of atomiser andcoati

46、ng material.See 6.10.12Mount test sheet on background panel and assemble in the testrig.See 6.3 and 6.4.13Apply coating material to the test sheet. Record coating materialtemperature, application period for each test sheet and thedistance between fluid outlet and test sheet.See 6.6.14Remove the test

47、 sheet from the background panel taking care toavoid loss of coating material.15Dry/stove the applied coating film. Record drying/curingtemperature and time.See 6.8.16Allow the test sheet to cool to ambient temperature under cleandry conditions. Weigh the dry coated test sheet and recordweight. The

48、mass of deposited solids is the difference in theweights of the coated and uncoated test sheet.Page 7EN 13966-1 : 200317a Method 1: Check coating material flow rate See 6.5.3.17bMethod 2: Weigh atomising and spraying equipment. Record themass.See 6.10.18Check spray pattern uniformity. Record observa

49、tions and filmthickness.19 Repeat steps 11 to 16 twice.20Re-measure test environmental conditions and atomiser settings.Record variations from initial conditions. Repeat test if conditionsare outside parameter tolerance.21Measure and record properties of coating used for the test.Repeat test if conditions are outside parameter tolerance.22 Calculate transfer efficiency for each test. See clause 7 and Annex B.23 Prepare test report. See Annex C.6 Test and measurement methods6.1 Test environmentThe