1、BRITISH STANDARD CONFIRMED DECEMBER 1998 BS EN ISO 11125-4:1997 BS 7079-E9: 1994 Incorporating Amendment No. 1 to BS 7079-E9:1994 (which it renumbers as BS EN ISO 11125-4:1997) Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning
2、abrasives Part 4: Determination of apparent density The European Standard EN ISO11125-4:1997 has the status of a British Standard ICS 25.220.10; 87.020BSENISO11125-4:1997 This British Standard, having been prepared under the directionof the Surface Treatments and Coatings Standards Policy Committee,
3、 waspublished under the authorityof the Standards Boardand comes into effect on 15March1994 BSI 04-2000 The following BSI references relate to the work on this standard: Committee reference STC/21 Draft for comment 92/50237 DC ISBN 0 580 23061 9 Committees responsible for this British Standard The p
4、reparation of this British Standard was entrusted by the Surface Treatments and Coatings Standards Policy Committee (STC/-) to Technical Committee STC/21, upon which the following bodies were represented: Association of Consulting Engineers British Chemical Engineering Contractors Association Britis
5、h Coatings Federation Ltd. British Constructional Steelwork Association Ltd. British Grit Association British Railways Board British Steel Industry Department of Transport Electricity Association Institute of Corrosion National Federation of Painting and Decorating Contractors Oil and Colour Chemist
6、s Association Paint Research Association Royal Society of Chemistry Amendments issued since publication Amd. No. Date Comments 9728 November 1997 Indicated by a sideline in the marginBSENISO11125-4:1997 BSI 04-2000 i Contents Page Committees responsible Inside front cover National foreword ii Forewo
7、rd 2 1 Scope 3 2 Normative references 3 3 Definition 3 4 Materials 3 5 Apparatus 3 6 Sampling 3 7 Procedure 3 8 Expression of results 4 9 Test report 4 Annex A (informative) International Standards for metallic blast-cleaning abrasives 5 Annex ZA (normative) Normative references to international pub
8、lications with their relevant European publications 6 List of references Inside back coverBSENISO11125-4:1997 ii BSI 04-2000 National foreword This British Standard has been prepared by Technical Committee STC/21 and is the English language version of ENISO11125-4:1997 Preparation of steel substrate
9、s before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 4: Determination of apparent density, published by the European Committee for Standardization (CEN). It is identical with ISO11125-5:1993, published by the International Organization for Stand
10、ardization (ISO). International Standard ISO11125-4 was prepared by Technical Committee ISO/TC35, Paints and varnishes, Subcommittee SC12. Preparation of steel substrates before application of paints and related products. The other Parts of BS EN ISO 11125 are: Part 1: Sampling; Part 2: Determinatio
11、n of particle size distribution; Part 3: Determination of hardness; Part 5: Determination of percentage defective particles and of microstructure; Part 6: Determination of foreign matter; Part 7: Determination of moisture. A British Standard does not purport to include all the necessary provisions o
12、f a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred to Corresponding British Standard EN ISO 3696:1995 (ISO 3696:1987) BS EN ISO 369
13、6:1995 Water for analytical laboratory use Specification and test methods EN ISO 11125-1:1997 (ISO 11125-1:1993) BS EN ISO 11125 Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 1:1997 Sampling Summary of pages
14、This document comprises a front cover, an inside front cover, pages i and ii, theEN ISO title page, pages 2 to 6, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the
15、inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 11125-4 June 1997 ICS 87.020 Descriptors: Paints, varnishes, substrates, steel products, blast-cleaning, abrasives, metallic abrasives, tests, density measurement, density (mass/volume) English version Preparation of steel s
16、ubstrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 4: Determination of apparent density (ISO 11125-4:1993) Prparation des subjectiles dacier avant application de peintures et de produits assimils Mthodes dessai pour abrasifs mtalliques
17、 destins la prparation par projection Partie 4: Dtermination de la masse volumique apparente (ISO11125-4:1993) Vorbereitung von Stahloberflchen vor dem Auftragen von Beschichtungsstoffen Prfverfahren fr metallische Strahlmittel Teil 4: Bestimmung der scheinbaren Dichte (ISO11125-4:1993) This Europea
18、n Standard was approved by CEN on1997-05-28. 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 references concerning
19、 such national standards may be obtained on application to the Central Secretariat 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 langu
20、age and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Sw
21、itzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.
22、 Ref. No. EN ISO 11125-4:1997 EENISO11125-4:1997 BSI 04-2000 2 Foreword The text of the International Standard from Technical Committee ISO/TC35, Paints and varnishes, of the International Organization for Standardization (ISO) has been taken over as a European Standard by Technical Committee CEN/TC
23、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 December1997, and conflicting national standards shall be withdrawn at the lates
24、t by December1997. According to CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherland
25、s, Norway, Portugal, Spain, Sweden, Switzerland and the UnitedKingdom. NOTENormative references to International Standards are listed in Annex ZA (normative)ENISO11125-4:1997 BSI 04-2000 3 1 Scope This is one of a number of parts of ISO11125 dealing with the sampling and testing of metallic abrasive
26、s for blast-cleaning. The types of metallic abrasive and requirements on each are contained in the various parts of ISO11124. The ISO 11124 and ISO 11125 series have been drafted as a coherent set of International Standards on metallic blast-cleaning abrasives. Information on all parts of both serie
27、s is given in Annex A. This part of ISO11125 specifies a test method for the determination of the apparent density of metallic blast-cleaning abrasives. The purpose of the test is to establish the soundness of the metallic abrasive. Significant levels of internal shrinkage or hollow particles will r
28、educe the apparent density. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO11125. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to ag
29、reements based on this part of ISO11125 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 3696:1987, Water for analytical laboratory use Specif
30、ication and test methods. ISO 11125-1:1993, Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 1: Sampling. 3 Definition For the purposes of this part of ISO11125, the following definition applies. 3.1 apparent de
31、nsity the mass of a given volume of metallic abrasive, as determined by the pyknometer method described in this part of ISO11125 4 Materials 4.1 Distilled or deionized water, of at least grade3purity as specified in ISO3696. 5 Apparatus Ordinary laboratory apparatus and glassware, together with the
32、following: 5.1 Pyknometer, Gay-Lussac type, of capacity 50ml, with a capillary stopper. 5.2 Balance, capable of weighing to an accuracy of0,01g. 6 Sampling Take a representative sample of the product to be tested, as described in ISO11125-1. 7 Procedure Carry out the determination in duplicate. 7.1
33、Weigh, using the balance (5.2), the clean, dry pyknometer (5.1) to an accuracy of 0,01g (m 1 ). 7.2 Add approximately 100 g of the test sample and reweigh (m 2 ). 7.3 Add distilled or deionized water (4.1) to the pyknometer until it is completely filled. Replace the stopper and gently shake the pykn
34、ometer to displace air adhering to the test portion. Remove the stopper, fill with water and then replace the stopper, forcing excess water out through the capillary tube. Carefully dry the outside of the pyknometer. Ensure there are no air bubbles present. Reweigh the pyknometer and its contents(m
35、3 ). 7.4 Empty the pyknometer of water and test portion. Rinse several times to remove all traces of abrasive. Refill with distilled or deionized water, replace the stopper and ensure that there are no air bubbles present. Dry the outside of the pyknometer and weigh (m 4 ). NOTE 1Care should be take
36、n that the pyknometer is handled as little as possible in order to prevent warming by hand. Pyknometer, test portion and water should as far as possible be at the same room temperature.ENISO11125-4:1997 4 BSI 04-2000 8 Expression of results Calculate the apparent density Aof the producttested, expre
37、ssed in kilograms per cubicmetre (kg/m 3 ), using the equation where If the duplicate determinations differ by more than10% (relative to the higher result), repeat the procedure described in clause7. Calculate the mean of two valid determinations and report the result to the nearest 100kg/m 3 . 9 Te
38、st report The 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 ISO11124 (see Annex A), if applicable; b) a reference to this part of ISO11125 (ISO11125-4); c) the result of the test; d) a
39、ny deviation from the test method specified; e) the date of the test; f) the name of the person who carried out the test. m 1 is the mass, in grams, of the pyknometer; m 2 is the mass, in grams, of the pyknometer and test portion; m 3 is the mass, in grams, of the pyknometer, test portion and water;
40、 m 4 is the mass, in grams, of the pyknometer and water; W is the density, in kilograms per cubic decimetre of water, at the temperature of the determination. A m 2 m 1 (m 4 m 1 ) (m 3 m 2 ) - W 10 3 =ENISO11125-4:1997 BSI 04-2000 5 Annex A (informative) International Standards for metallic blast-cl
41、eaning abrasives Requirements and test methods for metallic blast-cleaning abrasives are contained in ISO11124and ISO11125, respectively. ISO 11124 will consist of the following parts, under the general title: Preparation of steel substrates before application of paints and related products Specific
42、ation for metallic blast-cleaning abrasives Part 1: General introduction and classification; Part 2: Chilled-iron grit; Part 3: High-carbon cast-steel shot and grit; Part 4: Low-carbon cast-steel shot; Part 5: Cut steel wire. ISO 11125 will consist of the following parts, under the general title: Pr
43、eparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 1: Sampling; Part 2: Determination of particle size distribution; Part 3: Determination of hardness; Part 4: Determination of apparent density; Part 5: Determinatio
44、n of percentage defective particles and of microstructure; Part 6: Determination of foreign matter; Part 7: Determination of moisture; Part 8: Determination of abrasive mechanical properties.ENISO11125-4:1997 6 BSI 04-2000 Annex ZA (normative) Normative references to international publications with
45、their relevant European publications This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendment
46、s to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication referred to applies. Publication Year Title EN Year ISO 3696 1987 Water for analytical laboratory use Spe
47、cification and test methods EN ISO 3696 1995 ISO 11125-1 1993 Preparation of steel substrates before applicationof paints and related products Testmethods for metallic blast-cleaning abrasives Part 1: Sampling EN ISO 11125-1 1997BSENISO11125-4:1997 BSI 04-2000 List of references See national forewor
48、d.BS EN ISO 11125-4:1997 BS7079-E9: 1994 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal
49、 Charter. Revisions BritishStandards are updated by amendment or revision. Users of BritishStandards should make sure that they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this BritishStandard would inform the Secretary of the technical co
