DIN EN ISO 8130-10-2011 Coating powders - Part 10 Determination of deposition efficiency (ISO 8130-10 1998) German version EN ISO 8130-10 2010《涂料粉末 第10部分 附着力的测定(ISO 8130-10-1998) 德.pdf

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1、February 2011 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!$mP1“1744514www.din.deDDIN EN ISO 8130-10Coating powders Part 10: Determination of deposition efficiency (ISO 8130-10:1998)English translation of DIN EN ISO 8130-10:2011-02Pulverlacke Teil 10: Bestimmung des Abscheide-Wirkungsgrades (ISO 8130-10:1998)Englische bersetzung von DIN EN ISO 8130

3、-10:2011-02Poudres pour revtement Partie 10: Dtermination du rendement dapplication (ISO 8130-10:1998)Traduction anglaise de DIN EN ISO 8130-10:2011-02SupersedesDIN ISO 8130-10:2005-03www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative

4、.1202.11 DIN EN ISO 8130-10:2011-02 2 A comma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes”, Subcommittee SC 9 “General test methods for paints and varnishes” (Secretariat: BSI, United Kingdom) in collaboratio

5、n 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 Beschichtungen (Coatings and Coating Materials Standards Committee), Working Committee NA 002-00-07 AA All

6、gemeine Prfverfahren fr Beschichtungsstoffe und Beschichtungen. DIN EN ISO 8130 consists of the following parts, under the general title Coating powders: Part 1: Determination of particle size distribution by sieving Part 2: Determination of density by gas comparison pyknometer (referee method) Part

7、 3: Determination of density by liquid displacement pyknometer Part 4: Calculation of lower explosion limit Part 5: Determination of flow properties of a powder/air mixture Part 6: Determination of gel time of thermosetting coating powders at a given temperature Part 7: Determination of loss of mass

8、 on stoving Part 8: Assessment of the storage stability of thermosetting powders Part 9: Sampling Part 10: Determination of deposition efficiency Part 11: Inclined-plane flow test Part 12: Determination of compatibility Part 13: Particle size analysis by laser diffraction Part 14: Terminology The DI

9、N Standard corresponding to the International Standard referred to in this document is as follows: ISO 8130-9 DIN EN ISO 8130-9 DIN EN ISO 8130-10:2011-02 3 Amendments This standard differs from DIN ISO 8130-10:2005-03 as follows: a) the status of the standard has been changed to that of a European

10、Standard. Previous editions DIN 55990-7: 1980-06 DIN ISO 8130-10: 2005-03 National Annex NA (informative) Bibliography DIN EN ISO 8130-9, Coating powders Part 9: Sampling DIN EN ISO 8130-10:2011-02 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8130-10 No

11、vember 2010 ICS 87.040 English Version Coating powders - Part 10: Determination of deposition efficiency (ISO 8130-10:1998) Poudres pour revtement - Partie 10: Dtermination du rendement dapplication (ISO 8130-10:1998) Pulverlacke - Teil 10: Bestimmung des Abscheide-Wirkungsgrades (ISO 8130-10:1998)

12、This European Standard was approved by CEN on 16 October 2010. 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 ref

13、erences concerning such national standards may be obtained on application to the CEN 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 membe

14、r into its own language and notified to the CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland,

15、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B

16、-1000 Brussels 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8130-10:2010: EContents DIN EN ISO 8130-10:2011-02 EN ISO 8130-10:2010 (E) 2 Page Foreword3 1 Scope 4 2 Normative reference 5 3 Definitions 5 4 Principle5 5 Ap

17、paratus .5 6 Sampling.6 7 Procedure .6 8 Expression of results 7 9 Precision.8 10 Test report 8 Foreword The text of ISO 8130-10:1998 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” of the International Organization for Standardization (ISO) and has been taken over as EN IS

18、O 8130-10:2010 by 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 endorsement, at the latest by May 2011, and conflicting national

19、standards shall be withdrawn at the latest by May 2011. 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 identifying any or all such patent rights. According to the CEN/CENELEC I

20、nternal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Lu

21、xembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 8130-10:1998 has been approved by CEN as a EN ISO 8130-10:2010 without any modification. DIN EN ISO 8130-10:2011-02 EN ISO 8130-1

22、0:2010 (E) 3 1ScopeThis part of ISO 8130 is one of a series of standards dealing with the sampling and testing of paints,varnishes and related products.It specifies a method for determining the percentage by mass of a sprayed coating powder which is actuallydeposited on a standard test target when p

23、owder is sprayed at the target from a spray gun under standardconditions.The method is applicable to powders applied by corona charging or tribo charging.The method may be used to compare the deposition efficiency of different powders with the same gun or ofdifferent guns with the same powder.This m

24、ethod should only be used for comparison when powders or guns are evaluated consecutively, as theinfluence of the environment and the equipment can vary significantly with time and location.The results are dependent on the following properties of the powder:a) chemical composition;b) density;c) part

25、icle size distribution;d) particle shape;e) flow properties of its mixture in air;f) moisture content;and also on the test conditions, including:g) spray pattern produced by the gun;DIN EN ISO 8130-10:2011-02 EN ISO 8130-10:2010 (E) 4 h) gun air pressure;i) gun voltage;j) gun polarity;k) air humidit

26、y.2 Normative referenceThe following standard contains provisions which, through reference in this text, constitute provisions of thispart of ISO 8130. At the time of publication, the edition indicated was valid. All standards are subject torevision, and parties to agreements based on this part of I

27、SO 8130 are encouraged to investigate thepossibility of applying the most recent editions of the standards indicated below. Members IEC and ISOmaintain registers of currently valid International Standards.ISO 8130-9:1992, Coating powders Part 9: Sampling.3 DefinitionsFor the purposes of this part of

28、 ISO 8130, the following definition applies:3.1 deposition efficiency: The proportion of the mass of powder deposited compared to the mass ofpowder sprayed, expressed as a percentage.4 PrincipleThe method consists of spraying charged powder, at a known flow rate and under known conditions ofatmosphe

29、ric temperature and humidity, at the central one of five similar steel targets each wrapped inaluminium foil. The mass of powder deposited on the central target is determined, from which the depositionefficiency is calculated.The operation is performed in an air extraction booth.5 Apparatus5.1 Set o

30、f targets, consisting of five steel tubes of external diameter 25 mm and length 500 mm. Thetubes have a hole drilled at one end to enable the targets to be hung vertically. Each target shall be properlyearthed.5.2 Clean aluminium foil, of commercial quality.DIN EN ISO 8130-10:2011-02 EN ISO 8130-10:

31、2010 (E) 5 5.3 Suspension device, from which the five target tubes can be hung vertically in line at equal distancesof 95 mm to 105 mm as measured from the centres.5.4 Vacuum-cleaner bag.5.5 Oven, capable of melting the powder.5.6 Balance, accurate to 0,1 g.5.7 Timing device, accurate to 0,1 s.5.8 P

32、owder spray system, consisting of either a corona charge or a tribo charge spray gun suitablymounted in an air extraction booth together with a suitable powder collection device.5.9 Non-conductive shield or powder collection device, sufficiently large to prevent powder emittedfrom the spray gun from

33、 impinging on the targets before and after the test, and sufficiently mobile to bemoved away for the period of test.6 SamplingTake a representative sample of the product to be tested, as described in ISO 8130-9. A sample of 2 kg isrecommended.7 Procedure7.1 Carry out the test in duplicate at a tempe

34、rature of (23 2) C and a relative humidity between 20 %and 70 %.In view of the large volume of air which can pass through the air extraction booth during the test, it may notbe possible to control the temperature and humidity to close limits. Under these circumstances, the range oftemperature and hu

35、midity shall be stated in the test report.7.2 Wrap the five targets (5.1) with aluminium foil (5.2) such that the top and bottom edges fold overinto the tube to ensure good electrical contact. Weigh, on the balance (5.6) to the nearest 0,1 g, the foil to beused for the central tube.7.3 Determine the

36、 powder flow rate by spraying powder through the powder spray system (5.8) for 60 sas measured by the timing device (5.7) into a pre-weighed vacuum-cleaner bag (5.4). Re-weigh the bag andits contents to 0,1 g and calculate the powder flow rate in grams per minute.a) When using a corona charge gun, a

37、djust the control of the powder spray device to achieve apowder flow rate of (150 7,5) g/min.NOTE It is essential that the high voltage is turned off during this operation.b) When using a tribo charge gun, adjust the delivery air pressure to 300 kPa (= 3 bar) and measurethe powder flow rate as descr

38、ibed in the first paragraph of 7.3.DIN EN ISO 8130-10:2011-02 EN ISO 8130-10:2010 (E) 6 7.4 Place the suspension device (5.3) with the five target tubes in the spray booth.7.5 Mount and level the spray gun in the extraction booth so that it is aimed at the middle of the centraltube at a distance suc

39、h that the powder will cover approximately 60 % of the length of the central tube.Record this distance. Ensure the air flow across the booth opening is set between 0,4 m/s and 1,0 m/s andthat it flows parallel to the spraying direction.It may be difficult to cover 60 % of the target length when narr

40、ow cone applicators are used. Any deviationshall be recorded in the test report.7.6 Place the shield (5.9) between the spray gun and the targets.7.7 Turn on the powder flow and, in the case of the corona charge gun, adjust the potential so that thetrue gun potential is (60 1) kV at the appropriate p

41、olarity.NOTE The opportunity can be taken at this point to conduct the test at different voltages to enable a more in-depthjudgement of the equipment and the powder to be made.7.8 Remove the shield and allow the powder to spray steadily, without surging, onto the targets for(6,0 0,5) s. At the end o

42、f this period, immediately replace the shield between the spray gun and the targets.Turn off the spray gun.7.9 Remove the central target from the suspension device carefully so as not to knock off any powder.Place in the oven (5.5) set to a temperature so that the powder coating melts within 5 minut

43、es to 10 minutes.Do not subject the powder coating to the curing process as this could result in losses.7.10 Remove the tube and foil from the oven and allow to cool. Remove the foil from the tube and weighto the nearest 0,1 g.NOTE To prevent powder losses, the foil can be removed inside a pre-weigh

44、ed plastic bag.8 Expression of results8.1 Calculate the deposition efficiency E, expressed as a percentage by mass, using the followingequation:Emt=p60 100Pfwherempis the mass of powder deposited on the foil, in grams;t is the spray time, in seconds;Pf is the powder flow rate, in grams per minute.DI

45、N EN ISO 8130-10:2011-02 EN ISO 8130-10:2010 (E) 7 8.2 If the two results differ by not more than 5 % of the lower value, calculate and report the arithmeticalmean. If the difference exceeds 5 %, carry out a third determination and report the arithmetical mean of allthree results.If the difference b

46、etween the result of the third determination and the mean of the other determinations isalso greater than 5 %, state this and the individual results in the test report.Express the results to one decimal place.9 PrecisionExperience shows that the powder flow rate may be determined with a precision of

47、 3 %.The deposition efficiency with both corona charge and tribo charge guns may be determined with a precisionof 5 %.10 Test reportThe test report shall contain at least the following information:a) all details necessary to identify the product tested;b) a reference to this part of ISO 8130 (ISO 81

48、30-10);c) the type of powder;d) the particle size distribution (if available);e) the density of the powder tested (if available);f) a full description of the spraying apparatus, including1) for a corona charge gun, the true gun voltage or voltages (see note to 7.7) and the polarity used,2) for a tri

49、bo gun, the powder delivery air pressure,3) a description of the spray nozzle,4) the powder flow rate;g) the distance between the target and the gun nozzle;h) the air flow rate across the booth opening;i) the atmospheric temperature and relative humidity of the air delivered to the extraction booth(see 7.1);j) the results of the test as indicated in 8.2;k) any deviation from the test method specified;l) the date of the test.DIN EN ISO 8130-10:2011-02 EN ISO 8130-10:2010 (E) 8