1、BRITISH STANDARDICS 87.040BS EN ISO8130-6:2010Coating powders Part 6: Determination of gel time of thermosetting coating powders at a given temperature (ISO 8130-6:1992, including Amd 1: 1998) Incorporating corrigendum April 2011National forewordThis British Standard is the UK implementation of EN I
2、SO 8130-6:2010. It is identical to ISO 8130-6:1992, incorporating amendment 1:1998. It supersedes BS 3900-J3:1998 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/10, Methods of test for paints.A list of organizations represented on this committee c
3、an be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.BS EN ISO 8130-6:2010This British Sta
4、ndard, having been prepared under the direction of the Sector Board for, Materials and Chemicals, was published under the authority of the Standards Board and comes into effect on 15 August 1998 BSI 2011Amendments/corrigenda issued since publicationDate Comments 30 April 2011 This corigendum renumbe
5、rs BS 390-J3:198 as BS EN ISO 8130-6:2010ISBN 978 0 580 72114 4EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8130-6 November 2010 ICS 87.040 English Version Coating Powders - Part 6: Determination of gel time of thermosetting coating powders at a given temperature (ISO 8130-6:1992, includ
6、ing Amd 1:1998) Poudres pour revtement - Partie 6: Dtermination du temps de glification une temprature donne de poudres thermodurcissables (ISO 8130-6:1992, Amd 1:1998 inclus) Pulverlacke - Teil 6: Bestimmung der Gelzeit von wrmehrtenden Pulverlacken bei einer gegebenen Temperatur (ISO 8130-6:1992,
7、einschlielich Amd 1:1998)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 list
8、s and bibliographical references 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 resp
9、onsibility of a CEN member 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, H
10、ungary, Iceland, Ireland, 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 Ce
11、ntre: Avenue Marnix 17, B-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 8130-6:2010: EForeword The text of ISO 8130-6:1992, including Amd 1:1998 has been prepared by Technical Committee ISO/TC 35 “Paints an
12、d varnishes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 8130-6:2010 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
13、publication of an identical text or by endorsement, at the latest by May 2011, and conflicting national 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 sha
14、ll not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Den
15、mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 8130-6:1992, including Am
16、d 1:1998 has been approved by CEN as a EN ISO 8130-6:2010 without any modification. BS EN ISO 8130-6:2010EN ISO 8130-6:2010 (E)iii BSI 2011ContentsPageForeword iv1 Scope 12 Normative reference 13 Definition 14 Principle 15 Materials 16 Apparatus 17 Sampling 18 Procedure 19 Precision 210 Test report
17、2Figure 1 Heating block 2BS EN ISO 8130-6:2010EN ISO 8130-6:2010 (E) BSI 2011ForewordISO (the International 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
18、technical committees. Each member body interested in a subject for which a technical committee has been 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 clo
19、sely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by atleast75%
20、of the member bodies casting a vote.Amendment 1 to ISO 8130-6:1992 was prepared by ISO/TC 35,Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes.Descriptors: Coatings, powdery materials, thermosetting materials, paints, gelation, tests, determination, setting time.
21、BS EN ISO 8130-6:2010EN ISO 8130-6:2010 (E)iv BSI 2011ForewordISO (the International 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. E
22、ach member body interested in a subject for which a technical committee has been 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 Internati
23、onal Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least75% of the member bodies c
24、asting a vote.International Standard ISO 8130-6 was prepared by Technical CommitteeISO/TC 35, Paints and varnishes, Sub-Committee SC 9, General test methods for paints and varnishes.ISO 8130 consists of the following parts, under the general title Coating powders:Part 1: Determination of particle si
25、ze distribution by sieving;Part 2: Determination of density by gas comparison pyknometer (refereemethod);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: Determinat
26、ion of gel time of thermosetting coating powders at a given temperature;Part 7: Determination of loss of mass on stoving;Part 8: Assessment of the storage stability of thermosetting powders;Part 9: Sampling.Descriptors: Coatings, powdery materials, thermosetting materials, paints, gelation, tests, d
27、etermination, setting time.BS EN ISO 8130-6:2010EN ISO 8130-6:2010 (E)vThis page deliberately set blank BSI 2011 11 ScopeThis part of ISO8130 specifies a method for the determination of the time for a thermosetting coating powder to gel at a specified temperature, normally180C.NOTE1The determination
28、 of the gel time is a very simple method for the characterization and quality control of coating powders. However, the gel time determined by this method is not directly related to the time for a coating powder to cure in practical applications.The method is not applicable to coating powders with ul
29、tra-short gel times (less than15s).2 Normative referenceThe following standard contains provisions which, through reference in this text, constitute provisions of this part of ISO8130. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to
30、agreements based on this part of ISO8130 are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards.ISO 8130-9:1992, Coating powders Part9:Sampling. 3 Definiti
31、onFor the purposes of this part of ISO8130, the following definition applies.3.1 gel timethe time taken for a specified volume of coating powder to become non-deformable, under specified conditions, after melting4 PrincipleA test portion of a specified volume of coating powder is heated to a specifi
32、ed temperature in a depression in a heating block. The time at which threads can no longer be pulled from the molten product is determined.5 Materials5.1 Test substances of known melting point for checking the temperature of the heating block (6.1).NOTE 2For a test temperature of180C, D-camphor is a
33、 suitable material.5.2 Release agent, such as an aerosol dispersion of polytetrafluoroethylene.6 Apparatus6.1 Heating block, consisting of an electrically heated steel block of sufficient mass to maintain temperature stability, i.e.to ensure that the temperature selected within the range of 130C to2
34、30C does not vary by more than 1C. The temperature shall be controlled by means of a thermoregulator.The block shall have a spherical, polished depression, with a diameter of (16 0,1) mm and a radius of curvature of (10 0,1) mm in the centre of the top surface to contain the test portion.A hole of s
35、ufficient diameter shall be situated to take a temperature-measuring device (6.2) near the centre of one of the sides of the heating block, just below the top surface, extending horizontally to near the centre of the block and ending within2mm of the central depression.NOTE 3An example of a suitable
36、 heating block is shown in Figure 1. The dimensions indicated are given for illustrative purposes only.NOTE 4Thermal insulation of the heating block is desirable. For the heating block shown in Figure 1, a heating device rated at500 W has been found suitable.6.2 Temperature-measuring device, of suff
37、icient range, reading to1C.6.3 Measuring spoon, of capacity (0,25 0,01) ml, for transferring the test portion to the depression in the heating block.6.4 Timer, accurate to1s.6.5 Stirrer, of very low heat capacity and of suitable size.NOTE 5For the heating block shown in Figure 1, a stirring needle w
38、ith a round pin-head, diameter1mm, and attached to an insulating handle may be used. A small wooden stirrer has also been found to be satisfactory.6.6 Scraper, made of a material softer than that of the heating block, for removing the test material from the heating block without scratching its surfa
39、ce.7 SamplingTake a representative sample of the product to be tested, as described in ISO8130-9.8 ProcedureCarry out the determination in duplicate.Carry out the test at (180 1)C unless otherwise specified or otherwise agreed between the interested parties.Place the heating block (6.1) in an atmosp
40、here free from draughts. Raise the temperature of the heating block to the specified temperature and allow it to stabilize for at least10min.BS EN ISO 8130-6:2010EN ISO 8130-6:2010 (E)2 BSI 2011NOTE 6A check that the surface temperature of the heating block has reached the required temperature may b
41、e made by placing on it a small portion of material (5.1) that melts at the required temperature.If required, treat the depression and surrounding top surface of the heating block with the release agent (5.2) in accordance with the manufacturer s instructions.By means of the measuring spoon (6.3), t
42、ransfer a test portion of0,25ml of the product under test to the depression in the heating block and immediately after all the powder has melted start the timer (6.4) and commence stirring the material. Stir the molten material in small circular movements with the stirrer (6.5). When thickening, sta
43、rts, whilst maintaining the overall stirring action, lift the stirring device every2s to3s to about10mm away from the molten material. When the threads thus formed become brittle such that they break and can no longer be drawn from the molten material, stop the timer and record the time to the neare
44、st1s. This is the gel time. Immediately scrape the test material from the heating block, using the scraper(6.6) and taking care not to damage the surface.Repeat the determination with a fresh test portion. If the two results differ by less than5% of the lower value, calculate and report the arithmet
45、ic mean. If the difference between the two results exceeds5%, carry out a third determination and calculate and report the arithmetic mean of all three results to the nearest1s.If the difference between the result of the third determination and those of the other determinations is also greater than5
46、%, state this and the individual results in the test report.9 Precision9.1 Repeatability, r The value below which the absolute difference between two single test results obtained on identical material by one operator in one laboratory within a short interval of time using the standardized test metho
47、d may be expected to lie with a95% probability is5%.9.2 Reproducibility, R Due to the nature of the material, reproducibility cannot be determined.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
48、this part of ISO8130(ISO8130-6);c) the test temperature;d) whether the heating block was treated with a release agent;e) the result of the test as indicated in clause8;f) any deviation from the test method specified;g) the date of the test.Figure 1 Heating block (example)BS EN ISO 8130-6:2010EN ISO
49、8130-6:2010 (E)blankBSI GroupHeadquarters 389 Chiswick High Road, London, W4 4AL, UK Tel +44 (0)20 8996 9001 Fax +44 (0)20 8996 7001 standardsBSI - British Standards InstitutionBSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter.RevisionsBritish Standards are updated by amendment or revision. Users of British Standards should make sure that they possess the latest amendments or editions.I
