1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 11127-7:2011Preparation 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 7: Determination of water-soluble chloridesBS EN ISO 11127-7:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 11127-7:2011. It supersedes BS EN ISO 11127-7:1998, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n
3、 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 contract. Users are responsible
4、 for its correct application. BSI 2012 ISBN 978 0 580 67868 4 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 January 2012.Amendments issued sin
5、ce publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11127-7 December 2011 ICS 25.220.10 Supersedes EN ISO 11127-7:1997English Version Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast
6、-cleaning abrasives - Part 7: Determination of water-soluble chlorides (ISO 11127-7:2011) Prparation des subjectiles dacier avant application de peintures et de produits assimils - Mthodes dessai pour abrasifs non mtalliques destins la prparation par projection - Partie 7 : Dtermination des chlorure
7、s solubles dans leau (ISO 11127-7:2011) Vorbereitung von Stahloberflchen vor dem Auftragen von Beschichtungsstoffen - Prfverfahren fr nichtmetallische Strahlmittel - Teil 7: Bestimmung der wasserlslichen Chloride (ISO 11127-7:2011) This European Standard was approved by CEN on 14 December 2011. CEN
8、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 references concerning such national standards may be obtained on appli
9、cation 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 language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Man
10、agement 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, Italy, Latvia, Lithuania, Luxembourg, Malta, Nethe
11、rlands, 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-1000 Brussels 2011 CEN All rights of exploitation
12、in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 11127-7:2011: EBS EN ISO 11127-7:2011 EN ISO 11127-7:2011 (E) 3 Foreword This document (EN ISO 11127-7:2011) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration with Techn
13、ical 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 June 2012, and conflicting national standards shall be wit
14、hdrawn 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 not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 11127-7:1997. Accor
15、ding 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, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Ita
16、ly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 11127-7:2011 has been approved by CEN as a EN ISO 11127-7:2011 without any modification. BS EN ISO 11127
17、-7:2011ForewordISO (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. Each member body interested in a subject for whi
18、ch 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 International Electrotechnical Commission (IEC) on all m
19、atters 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 committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circu
20、lated 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 possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsib
21、le for identifying any or all such patent rights.ISO 11127-7 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 12, Preparation of steel substrates before application of paints and related products.This second edition cancels and replaces the first edition (ISO 1112
22、7-7:1993), which has been revised 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
23、 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 contaminants by conductivity measurement Part 7: D
24、etermination of water-soluble chloridesISO 11127-7:2011(E) ISO 2011 All rights reserved iiiBS EN ISO 11127-7:2011BS EN ISO 11127-7:2011INTERNATIONAL STANDARD ISO 11127-7:2011(E)Preparation of steel substrates before application of paints and related products Test methods for non-metallic blast-clean
25、ing abrasives Part 7:Determination of water-soluble chlorides1 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 11126 an
26、d 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 chlorides in non-metallic blast-cle
27、aning abrasives.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 any amendments) applies.ISO 3696, Wa
28、ter 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 ReagentsUse only reagents of recognized analytical grade and only wa
29、ter of at least grade 3 purity as defined in ISO 3696.3.1 Sulfuric acid, concentrated, approximately 96 % (by mass), 1,84 g/ml.3.2 Silver nitrate, standard volumetric solution, c(AgNO3) = 0,01 mol/l.4 ApparatusOrdinary laboratory apparatus and glassware, together with the following:4.1 Equipment for
30、 amperometric titration, any commercial equipment being suitable.4.2 Microburette.4.3 Balance, capable of weighing to an accuracy of 0,1 g. ISO 2011 All rights reserved 1BS EN ISO 11127-7:20115 SamplingTake a representative sample of the product to be tested, as described in ISO 11127-1.6 Procedure6
31、.1 Carry out the determination in duplicate.6.2 Weigh a test portion of (100 0,1) g of the sample (m0) into a 250 ml flask and add (100 1) ml of water. Shake for 5 min and allow to stand for 1 h. Then shake again for 5 min and allow to settle. If the solution does not completely clear, filter it by
32、any suitable method.6.3 Take 25 ml of the solution. Add 0,1 ml of sulfuric acid (3.1) and dilute to approximately 75 ml with water.6.4 Titrate the solution with silver nitrate (3.2) from the microburette (4.2), noting the end point as the voltage at which the pointer of the galvanometer reverses dir
33、ection.7 CalculationCalculate the water-soluble chloride content w(CI) of the abrasive, expressed as a percentage by mass, using the equationwVm( ),Cl = 0 000 355 41000wherem0is the mass, in grams, of the test portion;V is the volume, in millilitres, of silver nitrate solution (3.2) used;0,000 355 i
34、s the factor for the conversion of millilitres of silver nitrate solution, c(AgNO3) = 0,01 mol/l, to grams of CI.If the duplicate determinations 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 rep
35、ort the result to the nearest 0,000 1 %.8 Test reportThe test report shall contain at least the following information:a) all details necessary to identify 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 (I
36、SO 11127-7);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 out the test.ISO 11127-7:2011(E)2 ISO 2011 All rights reservedBS EN ISO 11127-7:2011Annex A (informative) International Standards for non-metallic blast
37、-cleaning abrasivesRequirements and test methods for non-metallic blast-cleaning abrasives are contained in ISO 11126 and ISO 11127, respectively.ISO 11126 consists of the following parts under the general title:Preparation of steel substrates before application of paints and related products Specif
38、ications for non-metallic blast-cleaning abrasives Part 1: General introduction and classification Part 3: Copper refinery slag Part 4: Coal furnace 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 ga
39、rnetISO 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: Sampling Part 2: Determination of particle size distribution Part 3: Determination o
40、f 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-soluble chloridesISO 11127-7:2011(E) ISO 2011 All rights reserved 3This page delibe
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