1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 11127-6:2011Preparation of steel substrates before application of paints and related products T e s t m e t h o d s f o r n o n - m e t a l l i c blast-cleaning abrasiv
2、esPart 6: Determination of water-soluble contaminants by conductivity measurementBS EN ISO 11127-6:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 11127-6:2011. It supersedes BS EN ISO 11127-6:1998, which is withdrawn.The UK participation in its prepara
3、tion was entrusted to T e c h n i c a l C o m m i t t e e S T I / 2 1 , S u r f a c e p r e p a r a t i o n o f s t e e l .A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a
4、contract. Users are responsible for its correct application. BSI 2012 ISBN 978 0 580 67867 7 ICS 25.220.10 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 Jan
5、uary 2012.Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11127-6 December 2011 ICS 25.220.10 Supersedes EN ISO 11127-6:1997English Version Preparation of steel substrates before application of paints and related products - Test
6、 methods for non-metallic blast-cleaning abrasives - Part 6: Determination of water-soluble contaminants by conductivity measurement (ISO 11127-6:2011) Prparation des subjectiles dacier avant application de peintures et de produits assimils - Mthodes dessai pour abrasifs non mtalliques destins la pr
7、paration par projection - Partie 6 : Dtermination des contaminants solubles dans leau par conductimtrie (ISO 11127-6:2011)Vorbereitung von Stahloberflchen vor dem Auftragen von Beschichtungsstoffen - Prfverfahren fr nichtmetallische Strahlmittel - Teil 6: Bestimmung der wasserlslichen Verunreinigung
8、en durch Messung der Leitfhigkeit (ISO 11127-6:2011) This European Standard was approved by CEN on 14 December 2011. 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 an
9、y alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other langua
10、ge made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC 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,
11、 Estonia, Finland, France, Germany, Greece, Hungary, 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
12、 EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11127-6:2011: EBS EN ISO 11127-6:2011 EN ISO 11127-6:2011 (E) 3 Foreword This document (E
13、N ISO 11127-6:2011) 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 DIN. This European Standard shall be given the status of a national standard, either by public
14、ation of an identical text or by endorsement, at the latest by June 2012, and conflicting national standards shall be withdrawn at the latest by June 2012. 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 n
15、ot be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 11127-6:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulg
16、aria, Croatia, Cyprus, Czech Republic, Denmark, 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
17、 The text of ISO 11127-6:2011 has been approved by CEN as a EN ISO 11127-6:2011 without any modification. BS EN ISO 11127-6:2011ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internati
18、onal Standards is normally carried out through ISO 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 IS
19、O, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.The main task of technical comm
20、ittees is to prepare International Standards. 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 least 75 % of the member bodies casting a vote.Attention is drawn to the po
21、ssibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 11127-6 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 12, Preparation of steel substrat
22、es before application of paints and related products.This second edition cancels and replaces the first edition (ISO 11127-6:1993), which has been revised so that the result is now calculated and reported in microsiemens per centimetre (rather than in millisiemens per metre as in the previous editio
23、n) and to update the structures of ISO 11126 and ISO 11127 presented in Annex A.ISO 11127 consists of the following parts, under the general title Preparation of steel substrates before application of paints and related products Test methods for non-metallic blast-cleaning abrasives : Part 1: Sampli
24、ng Part 2: Determination of particle size distribution Part 3: Determination of apparent density Part 4: Assessment of hardness by a glass slide test Part 5: Determination of moisture Part 6: Determination of water-soluble contaminants by conductivity measurement Part 7: Determination of water-solub
25、le chloridesISO 11127-6:2011(E) ISO 2011 All rights reserved iiiBS EN ISO 11127-6:2011BS EN ISO 11127-6:2011INTERNATIONAL STANDARD ISO 11127-6:2011(E)Preparation of steel substrates before application of paints and related products Test methods for non-metallic blast-cleaning abrasives Part 6:Determ
26、ination of water-soluble contaminants by conductivity measurement1 ScopeThis is one of a number of parts of ISO 11127 dealing with the sampling and testing of non-metallic abrasives for blast-cleaning.The types of non-metallic abrasive and requirements on each are contained in ISO 11126.The ISO 1112
27、6 and ISO 11127 series have been drafted as a coherent set of International Standards on non-metallic blast-cleaning abrasives. Information on all parts of both series is given in Annex A.This part of ISO 11127 specifies a method for the determination of water-soluble contaminants in non-metallic bl
28、ast-cleaning abrasives by conductivity measurement.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including a
29、ny amendments) applies.ISO 3696, Water for analytical laboratory use Specification and test methodsISO 11127-1, Preparation of steel substrates before application of paints and related products Test methods for non-metallic blast-cleaning abrasives Part 1: Sampling3 Reagent3.1 Conductivity water, of
30、 at least grade 2 purity as defined in ISO 3696.4 ApparatusOrdinary laboratory apparatus and glassware, together with the following:4.1 Conductivity-measuring bridge1).4.2 Conductivity cell1).4.3 Balance, capable of weighing to an accuracy of 0,1 g.1) Any commercial conductivity bridge and conductiv
31、ity cell with temperature compensation and a range of 10 S/cm to 1 000 S/cm are suitable. ISO 2011 All rights reserved 1BS EN ISO 11127-6:20115 SamplingTake a representative sample of the product to be tested, as described in ISO 11127-1.6 Procedure6.1 Carry out the determination in duplicate.6.2 We
32、igh a test portion of (100 0,1) g of the sample into a 250 ml flask and add (100 1) ml of the conductivity water (3.1). Shake for 5 min and allow to stand for 1 h. Then shake again for 5 min and allow to settle. If the liquid does not completely clear, filter it by any suitable method.6.3 Transfer s
33、ufficient of the liquid to fill the conductivity cell (4.2) of the conductivity-measuring bridge (4.1). Measure the conductivity of the solution in microsiemens per centimetre at 20 C.The conductivity bridge shall be compensated at 20 C or, alternatively, the conductivity shall be measured at 20 C.7
34、 Expression of resultsCalculate the conductivity s, in microsiemens per centimetre, of the abrasive, using the equation s m= K20wheremis the conductivity, in microsiemens per centimetre, of the solution at 20 C;K20is the cell constant of the conductivity cell at 20 C.If the duplicate determinations
35、differ by more than 10 % (relative to the higher result), repeat the procedure described in Clause 6.Calculate the mean of two valid determinations and report the result to the nearest 10 S/cm.8 Test reportThe test report shall contain at least the following information:a) all details necessary to i
36、dentify the product tested, in accordance with the appropriate part of ISO 11126 (see Annex A), if applicable;b) a reference to this part of ISO 11127 (ISO 11127-6);c) the result of the test;d) any deviation from the test method specified;e) the date of the test;f) the name of the person who carried
37、 out the test.ISO 11127-6:2011(E)2 ISO 2011 All rights reservedBS EN ISO 11127-6:2011Annex A (informative) International Standards for non-metallic blast-cleaning abrasivesRequirements and test methods for non-metallic blast-cleaning abrasives are contained in ISO 11126 and ISO 11127, respectively.I
38、SO 11126 consists of the following parts under the general title:Preparation of steel substrates before application of paints and related products Specifications for non-metallic blast-cleaning abrasives Part 1: General introduction and classification Part 3: Copper refinery slag Part 4: Coal furnac
39、e slag Part 5: Nickel refinery slag Part 6: Iron furnace slag Part 7: Fused aluminium oxide Part 8: Olivine sand Part 9: Staurolite Part 10: Almandite garnetISO 11127 consists of the following parts, under the general title:Preparation of steel substrates before application of paints and related pro
40、ducts Test methods for non-metallic blast-cleaning abrasives Part 1: Sampling Part 2: Determination of particle size distribution Part 3: Determination of apparent density Part 4: Assessment of hardness by a glass slide test Part 5: Determination of moisture Part 6: Determination of water-soluble co
41、ntaminants by conductivity measurement Part 7: Determination of water-soluble chloridesISO 11127-6:2011(E) ISO 2011 All rights reserved 3This page deliberately left blankThis page deliberately left blankBSI is the independent national body responsible for preparing British Standardsand other standar
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