1、BRITISH STANDARD CONFIRMED DECEMBER 1998 BS EN ISO 11124-3:1997 BS 7079-E3: 1994 Incorporating Amendment No. 1 to BS 7079-E3:1994 (renumbers BS as BS EN ISO 11124-3:1997) Preparation of steel substrates before application of paints and related products Specifications for metallic blast-cleaning abra
2、sives Part 3: High-carbon cast-steel shot and grit The European Standard EN ISO 11124-3:1997 has the status of a British Standard ICS 25.220.10; 87.020BSENISO11124-3:1997 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 92/50232 DC ISBN 0 580 22897 5 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 9722 November 1997 Indicated by a sideline in the marginBSENISO11124-3:1997 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 Definitions 3 4 Designation of abrasives 4 5 Sampling 4 6 Requirements for high-carbon cast-steel shot and grit abrasives 4 7 Package identification and lot traceability 4 8 Information to be provided by the manufacturer or supplier 4 Annex A (informative) A
8、pproximately equivalent codings for shot and grit abrasives 8 Annex B (informative) Bibliography 8 Annex ZA (normative) Normative references to international publications with their relevant European publications Inside back cover Table 1 Screening specifications by grade High-carbon cast-steel shot
9、 Cumulative% retained 5 Table 2 Screening specifications by grade High-carbon cast-steel grit Cumulative% retained 5 Table 3 Untitled 6 Table A.1 Untitled 8BSENISO11124-3:1997 ii BSI 04-2000 National foreword This British Standard has been prepared by Technical Committee STC/21 and is the English la
10、nguage version of EN ISO11124-3:1997 Preparation of steel substrates before application of paints and related products Specifications for metallic blast-cleaning abrasives Part 3: High-carbon cast-steel shot and grit, published by the European Committee for Standardization (CEN). It is identical wit
11、h ISO11124-3:1993, published by the International Organization for Standardization (ISO). International Standard ISO11124-3 was prepared by Technical Committee ISO/TC35, Paints and varnishes, Subcommittee SC12. Preparation of steel substrates before application of paints and related products. The ot
12、her parts of BS EN ISO11124 are: Part 1: General introduction and classification; Part 2: Chilled-iron grit; Part 4: Low-carbon cast-steel shot. Together with Part 4, this Part of BS EN ISO11124 supersedes BS2451:1963, which is withdrawn. Cross-references The British Standards which implement intern
13、ational or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. Attention is drawn toAnnex ZA, which gives t
14、he European Standards that correspond to the International Standards referred to. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself
15、 confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN ISO title page, pages2 to8, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated.
16、 This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO11124-3 June1997 ICS87.020 Descriptors: Paints, varnishes, substrates, steel products, blast-cleaning, abrasives, metallic abrasives, specifications, designation Englishve
17、rsion Preparation of steel substrates before application of paintsand related products Specifications for metallicblast-cleaning abrasives Part 3: High-carbon cast-steel shot and grit (ISO 11124-2:1993) Prparation des subjectiles dacier avant application de peintures et de produits assimils Spcifica
18、tions pour abrasifs mtalliques destins la prparation par projection Partie 3: Grenaille ronde et angulaire en acier moul haut carbone (ISO 11124-3:1993) Vorbereitung von Stahloberflchen vor dem Auftragen von Beschichtungsstoffen Anforderungen an metallische Strahlmittel Teil 3: Stahlu mit hohem Kohl
19、enstoffgehalt, kugelig und kantig (shot und Grit) (ISO 11124-3:1993) This European 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 w
20、ithout any alteration. Up-to-date lists and bibliographical references concerning 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 languag
21、e made by translation under the responsibility of a CEN member into its own language 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, Icel
22、and, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland 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 explo
23、itation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO11124-3:1997 EENISO11124-3:1997 BSI 04-2000 2 Foreword The text of the International Standard from Technical Committee ISO/TC35, Paints and varnishes, of the International Organization for Standardizatio
24、n (ISO) has been taken over as a European Standard by Technical Committee CEN/TC139, 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
25、December1997, and conflicting national standards shall be withdrawn at the latest 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, F
26、inland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the UnitedKingdom. NOTENormative references to International Standards are listed inAnnex ZA (normative).ENISO11124-3:1997 BSI 04-2000 3 WARNING Equipment, materials an
27、d abrasives used for surface preparation can be hazardous if used carelessly. Many national regulations exist for those materials and abrasives that are considered to be hazardous during or after use (waste management), such as free silica or carcinogenic or toxic substances. These regulations are t
28、herefore to be observed. It is important to ensure that adequate instructions are given and that all required precautions are exercised. 1 Scope This part of ISO11124 specifies requirements for14 grades of high-carbon cast-steel shot and12 grades of high-carbon cast-steel grit, as supplied for blast
29、-cleaning processes. Values are specified for hardness, density, defect/structural requirements and chemical composition. The requirements specified in this part of ISO11124 apply to abrasives supplied in the “new” condition only. They do not apply to abrasives either during or after use. Test metho
30、ds for metallic blast-cleaning abrasives are given in the various parts of ISO11125. High-carbon cast-steel shot and grit are used in both static and site blasting equipment. They are most often selected where a facility exists for the recovery and re-use of the abrasive. NOTE 1Information on common
31、ly referenced national standards for metallic abrasives and their approximate relationship with ISO11124 is given inAnnex A andAnnex B. NOTE 2Although this part of ISO11124 has been developed specifically to meet requirements for preparation of steelwork, the properties specified will generally be a
32、ppropriate for use when preparing other material surfaces, or components, using blast-cleaning techniques. These techniques are described in ISO8504-2:1992, Preparation of steel substrates before application of paints and related products Surface preparation methods Part 2: Abrasive blast-cleaning.
33、2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO11124. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part
34、of ISO11124 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 439:1982, Steel and cast iron Determination of total silicon Gravimetric method.
35、ISO 629:1982, Steel and cast iron Determination of manganese content Spectrophotometric method. ISO 4935:1989, Steel and iron Determination of sulfur content Infrared absorption method after combustion in an induction furnace. ISO 9556:1989, Steel and iron Determination of total carbon content Infra
36、red absorption method after combustion in an induction furnace. ISO 10714:1992, Steel and iron Determination of phosphorus content Phosphovanadomolybdate spectrophotometric method. ISO 11125-1:1993, Preparation of steel substrates before application of paints and related products Test methods for me
37、tallic blast-cleaning abrasives Part 1: Sampling. ISO 11125-2:1993, Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 2: Determination of particle size distribution. ISO 11125-3:1993, Preparation of steel substra
38、tes before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 3: Determination of hardness. ISO 11125-4:1993, Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 4: D
39、etermination of apparent density. ISO 11125-5:1993, Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 5: Determination of percentage defective particles and of microstructure. ISO 11125-6:1993, Preparation of ste
40、el substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 6: Determination of foreign matter. ISO 11125-7:1993, Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abr
41、asives Part 7: Determination of moisture. 3 Definitions For the purposes of this part of ISO11124, the following definitions apply. 3.1 high-carbon cast-steel shot a metallic blast-cleaning abrasive produced by a casting process in which molten high-carbon steel is formed into shot (see also3.3) by
42、means of an atomization process 3.2 high-carbon cast-steel grit a metallic blast-cleaning abrasive obtained by crushing various high-carbon cast-steel shot sizes into sharp-edged angular particlesENISO11124-3:1997 4 BSI 04-2000 3.3 shot particles that are predominantly round, that have a length of l
43、ess than twice the maximum particle width and that do not have edges, broken faces or other sharp surface defects 3.4 grit particles that are predominantly angular, that have fractured faces and sharp edges and that are less than half round in shape 3.5 Defect A fault or weakness in an abrasive whic
44、h, if present at or above a given level, may be detrimental to the performance characteristics of the abrasive (seeTable 3). 3.5.1 void a smooth-surfaced internal cavity considered undesirable when greater than10% of the cross-sectional area of a particle 3.5.2 shrinkage defect an internal cavity wi
45、th a rough dendritic surface or a zone of microporosity, considered undesirable when greater than40% of the cross-sectional area of a particle 3.5.3 crack a linear discontinuity that has a length-to-width ratio of3 : 1 or greater, that extends over more than20% of the diameter or shortest dimension
46、of a particle and that is radial in direction 3.6 foreign matter any material or particles mixed with the abrasive which are not attached to the abrasive particles and which are nonmagnetic 4 Designation of abrasives High-carbon cast-steel shot and grit shall be identified by “Abrasive ISO11124” and
47、 the abbreviation “M/HCS” indicating metallic, high-carbon cast-steel abrasive. The symbol “S” or “G” shall follow to indicate the required particle shape of the shot or grit as purchased. The designation shall be completed by a3-digit number denoting the grade, or nominal particle size, required. I
48、f alternative hardnesses of abrasive are available, the particular Vickers hardness (HV) range required shall be specified (see example2). EXAMPLE 1 Abrasive ISO11124 M/HCS/S140 denotes an abrasive of the metallic, high-carbon cast-steel type, complying with the requirements of this part of ISO11124
49、, of particle shape shot and grade140 (i.e.nominal particle size1,40mm). EXAMPLE 2 Abrasive ISO11124 M/HCS/G140/570-710HV denotes an abrasive of the metallic, high-carbon cast-steel type, complying with the requirements of this part of ISO11124, of particle shape grit and grade140 (i.e.nominal particle size1,40mm), and with a hardness range of570HV to710HV. It is essential that this full product designation is quoted on all orders. NOTE 3Grade requirements and co
