DIN EN ISO 8130-13-2011 Coating powders - Part 13 Particle size analysis by laser diffraction (ISO 8130-13 2001) German version EN ISO 8130-13 2010《粉末涂料 第13部分 采用激光衍射的粒度分析(ISO 8130-.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!$mnQ“1747546www.din.deDDIN EN ISO 8130-13Coating powders Part 13: Particle size analysis by laser diffraction (ISO 8130-13:2001)English translation of DIN EN ISO 8130-13:2011-02Pulverlacke Teil 13: Teilchengrenanalyse durch Laserbeugung (ISO 8130-13:2001)Englische bersetzung von DIN EN ISO

3、8130-13:2011-02Poudres pour revtement Partie 13: Analyse granulomtrique par diffraction laser (ISO 8130-13:2001)Traduction anglaise de DIN EN ISO 8130-13:2011-02SupersedesDIN ISO 8130-13:2005-03www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered aut

4、horitative.1102.11 DIN EN ISO 8130-13:2011-02 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 co

5、llaboration 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

6、-07 AA Allgemeine 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 me

7、thod) Part 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 lo

8、ss of mass 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: Terminol

9、ogy The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 3270 DIN EN 23270 ISO 8130-9 DIN EN ISO 8130-9 ISO 9276-1 DIN 66141 DIN EN ISO 8130-13:2011-02 3 Amendments This standard differs from DIN ISO 8130-13:2005-03 as follows: a) the status

10、 of the standard has been changed to that of a European Standard. Previous editions DIN ISO 8130-13: 2005-03 National Annex NA (informative) Bibliography DIN 66141, Representation of particle size distributions Basic standard DIN EN 23270, Paints, varnishes and their raw materials Temperatures and h

11、umidities for conditioning and testing DIN EN ISO 8130-9, Coating powders Part 9: Sampling DIN EN ISO 8130-13:2011-02 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8130-13 November 2010 ICS 87.040 English Version Coating powders - Part 13: Particle size

12、analysis by laser diffraction (ISO 8130-13:2001) Poudres pour revtement - Partie 13: Analyse granulomtrique par diffraction laser (ISO 8130-13:2001) Pulverlacke - Teil 13: Teilchengrenanalyse durch Laserbeugung (ISO 8130-13:2001) This European Standard was approved by CEN on 16 October 2010. CEN mem

13、bers 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 be obtained on applicat

14、ion 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 member into its own language and notified to the CEN Management Centre has

15、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, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Pol

16、and, 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-1000 Brussels 2010 CEN All rights of exploitation in any form and by

17、any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8130-13:2010: EContents DIN EN ISO 8130-13:2011-02 EN ISO 8130-13:2010 (E) 2 Page Foreword. 1 Scope 4 2 Normative references4 3 Term and definition .4 4 Principle5 5 Apparatus .5 6 Sampling.5 7 Conditions 5 8 Procedure .5 9 Calcu

18、lation of results 6 10 Expression of results 6 11 Precision.6 12 Test report 7 3.Foreword The text of ISO 8130-13:2001 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 ISO 8130-13:2010

19、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 standards shall

20、 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 Internal Regulat

21、ions, 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, Luxembourg, Malta

22、, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 8130-13:2001 has been approved by CEN as a EN ISO 8130-13:2010 without any modification. DIN EN ISO 8130-13:2011-02 EN ISO 8130-13:2010 (E) 3 1

23、Scope This 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 the determination of the equivalent-sphere particle size distribution of coating powders by laser diffraction and is suitable for dis

24、criminating between particles of the size range from 1 m to 300 m. This method is applicable only for dry powders. NOTE Most instruments will be capable of discriminating between particles of sizes beyond these limits. 2 Normative references The following normative documents contain provisions which

25、, through reference in this text, constitute provisions of this part of ISO 8130. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 8130 are encouraged to investigate the possibility of ap

26、plying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 3270:1984, Paints and varnishes and their ra

27、w materials Temperatures and humidities for conditioning and testing ISO 8130-9:1992, Coating powders Part 9: Sampling ISO 9276-1:1998, Representation of results of particle size analysis Part 1: Graphical representation ISO 13320-1:1999, 3 Term and definition For the purposes of this part of ISO 81

28、30, the following term and definition apply. 3.1 obscuration percentage or fraction of incident light that is attenuated due to extinction (scattering and/or absorption) by the particles of a coating powder NOTE A full list of definitions is given in ISO 13320-1. DIN EN ISO 8130-13:2011-02 EN ISO 81

29、30-13:2010 (E) 4 Particle size analysis Laser diffraction methods Part 1: General principlesN1)N1) National footnote: Withdrawn. Replaced by ISO 13320:2009. 4 Principle A representative sample of the coating powder, dispersed at an adequate concentration in air, is passed through the beam of a monoc

30、hromatic laser source. The light scattered by the particles at various angles is measured by a multi-element detector and numerical values relating to the scattering pattern are recorded for subsequent analysis. These numerical scattering values are then transformed using an appropriate optical mode

31、l and mathematical procedure to yield the proportion by volume of the sample in each size class forming a sphere-equivalent volumetric particle size distribution. 5 Apparatus NOTE A description of laser analyser apparatus is given in ISO 13320-1. 5.1 Laser diffraction particle size analyser, with a

32、minimum size range of 1 m to 300 m. 5.2 Dry-powder feeder, to be connected to the laser apparatus. This shall incorporate suitable means of delivering a constant stream of powder, free from agglomerates, into the analyser. 5.3 Compressed-air supply, delivering sufficient pressure as recommended by t

33、he instrument supplier. The air shall be dry, free from oil and filtered to 4 m. 5.4 Air extraction system, capable of extracting air at the rate required by the instrument manufacturer. Certain domestic vacuum cleaners may be found to be suitable. The vacuum unit shall be located such that the outp

34、ut of hot air does not reach the measurement zone. Ensure that all particle-transporting devices, such as the dry-powder feeder, vacuum inlets and hoses, are electrically earthed to prevent electrostatic discharges. 5.5 Computer and software, suitable for analysing the data from the measurement devi

35、ce. The computer may be connected to a suitable printer. Any special requirements for the specifications of computer hardware will normally be advised by the instrument manufacturer. 5.6 Spatula or spoon. 6 Sampling Prepare a representative sample of the powder to be tested, as described in ISO 8130

36、-9. A quantity between 3 g and 5 g is normally sufficient for each determination. 7 Conditions Measurements shall be made under standard conditions as specified in ISO 3270. The period of conditioning shall be not less than 30 min. 8 Procedure NOTE 1 It is recommended that the operator be familiar w

37、ith the procedures detailed in ISO 13320-1. DIN EN ISO 8130-13:2011-02 EN ISO 8130-13:2010 (E) 5 N1)N1) National footnote: Withdrawn. Replaced by ISO 13320:2009. Install and adjust the apparatus in accordance with the manufacturers instructions for powder of the expected particle size range. When th

38、e system is switched on at the start of a series of determinations, allow at least 30 min to elapse to enable the equipment to stabilize, referring to the manufacturers instructions as necessary. Check that the laser beam is centrally aligned on the detector, and adjust if necessary. NOTE 2 With mos

39、t instruments alignment will take place automatically, but it may be necessary for it to be carried out by a service engineer. Using the spatula or spoon (5.6), add the powder to the powder feeder (5.2) and adjust the air flow as recommended by the instrument supplier. Make a background measurement

40、(i.e. in the absence of powder) to determine the combined effect of electrical “noise” and contamination in the system. This measurement needs to be subtracted from the sample measurement. NOTE 3 This procedure is normally undertaken automatically by the instruments computer. Start the powder feeder

41、 in accordance with the instructions such that the level of obscuration (see 3.1) lies between 1 % and 15 %, preferably between 7 % and 10 %. Allow the powder sample to pass through the air cell, using a brush to remove any fines remaining in the feed tray. After the determination, the data are disp

42、layed on the computer visual display unit (VDU). Ensure the instrument is thoroughly cleaned between determinations. At the end of a measuring session, the computer software may be closed down and the device turned off. 9 Calculation of results As noted above, the computer software, associated with

43、the particle size analyser, will undertake the calculations and allow the results to be displayed (and, if required, printed) in both tabular and graphical form. NOTE In general, the Fraunhofer theory will be applied (see ISO 13320-1) and details of refractive indices will not be required. However,

44、in the case of unpigmented coating powders it may be necessary to use Mie theory, in which case refractive indices will be required. If the results of the two determinations for any size class differ by not more than 1 %, calculate the arithmetic mean. Otherwise, undertake a third determination and

45、report the arithmetic mean of all three measurements, noting this in the test report. 10 Expression of results Express the results in accordance with ISO 9276-1. 11 Precision Experience shows that repeatability within 1 m in the range up to 100 m particle diameter may be expected. DIN EN ISO 8130-13

46、:2011-02 EN ISO 8130-13:2010 (E) 6 WARNING The radiation from instruments equipped with a low-power laser can cause permanent eye damage. Never look in the direct path of the laser beam or its reflections. Avoid cutting the laser beam with reflecting surfaces. Observe the local laser radiation safet

47、y regulations. Carry out the measurements in duplicate. 12 Test report The test report shall include at least the following information: a) all details necessary to identify the product tested; b) a reference to this part of ISO 8130 (ISO 8130-13); c) a full description of the equipment used, includ

48、ing: 1) a description of the powder feeder, including the name of the manufacturer and type of equipment, 2) the feeding rate, 3) the wavelength of the laser beam, 4) the number of detector elements, 5) the focal length of the lens, 6) the scattering-angle range, 7) the obscuration value, 8) the date of the most recent alignment and calibration date; d) the results of the determination in accordance with ISO 9276-1 and clause 9; e) any deviations from the test method; f) the date of the test. DIN EN ISO 8130-13:2011-02 EN ISO 8130-13:2010 (E) 7

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