1、STD-BSI BS EN IS0 3L126-7-ENGL 1996 1624669 0893859 109 BRITISH STANDARD Preparation of steel substrates before application of paints and related products - Specification for non-met allic blast- cleaning abrasives Part 7: Fused aluminium oxide The European Standard EN IS0 11126-7:1999 has the statu
2、s of a British Standard ICs 25.220.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN IS0 1 1 12 6-7:200 1 BS 7079-F7: 1996 Incorporating Technical Corrigendum No. 1 and Amendment No. 1 (renumbers the BS as BS EN IS0 to BS 7079-F7:1996 11 126- 7:2001) - sTD.BSI BS EN IS0
3、 LLLZb-7-ENGL i9b Lb24669 08938b0 920 BS EN IS0 11126-72001 Amd. No. IDate Committees responsible for this British Standard Comments The preparation of this British Standard was entrusted to Technical Committee STY21, Surface preparation of steel, upon which the following bodies were represented: As
4、sociation of Consulting Engineers British Chemical Engineering Contractors Association British Coatings Federation Ltd. British Constructional Steelwork Association Ltd. British Grit Association British Iron and Steel Producers Association British Railways Board Department of Transport Electricity A
5、ssociation Institute of Corrosion National Federation of Painting and Decorating Contractors Oil and Colour Chemists Association Paint Research Association Royal Society of Chemistry Water Services Association of England and Wales 10555 Technical The following BSI references Comgendum relate to the
6、work on this standard 10699 Committee reference STY21 Draft for comment 94/503822 DC This British Standard, 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 May 1996 March 20
7、00 line of subclause 3.1 Corrections to clause 1, first paragraph and to last February 2001 Implementation of the European Standard 8 BSI 02-2001 ISBN O 580 26688 3 STD.BS1 BS EN IS0 1112h-7-ENGL 199h Lb24bb9 0893BbL 867 BS EN IS0 11126-7:2001 Contents Committees responsible National foreword Page I
8、nside front cover 11 1 Scope 2 Normative references 3 Definition 4 Designation of abrasives 5 Sampling 6 Requirements 7 Identification and marking 2 8 Annex A (informative) Bibliography 4 Table 1 - Particle size distribution Information to be supplied by the manufacturer or supplier 2 2 Table 2 - Pa
9、rticular requirements for fused aluminium oxide abrasives 3 i 8 BSI 02-2001 STDUBS1 BS EN IS0 LLL26-7-ENGL 1976 Lb24667 0873862 7T3 BS EN IS0 11126-72001 National foreword This British Standard is the official English language version of EN IS0 11126-7:1999. It is identical with IS0 11126-7:1995, in
10、cluding Technical Corrigendum 1:1999. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement these in
11、ternational or European publications may be found in the BSI Standards Catalogue under the section 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 d
12、oes not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN IS0 title page and EN IS0 foreword, pages 1 to 5 and a back cover. The BSI copyright notice displayed in this document indicates when the do
13、cument was last issued. 11 STDSBSI BS EN IS0 LLLZb-?-ENGL 1996 O Lb24bb9 08938b3 b3T - EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 11126-7 May 1999 ICs 87.020 English version Preparation of steel substrates before application of paints and related products - Specifications for non-metal
14、lic blast-cleaning abrasives - Part 7: Fused aluminium oxide (IS0 11126-7: 1995, including Technical Corrigendum 1:1999) Prparation des subjectiles dacier avant application de peintures et de produits assimils - Spcifications pour abrasifs non mtalliques destins la prparation par projection - Partie
15、7: Oxyde daluminium fondu (IS0 11126-7:1995, Rectificat Technique 1:1999) Korrecktur: 1999) Vorbereitung von Stahloberfichen vor dem Auftragen von Beschichtungsstoffen - Anforderungen an nichtmetallische - Strahlmittel - Teil 7: Elektrokorund (IS0 11126-7:1995, einschlielich Technische This European
16、 Standard was approved by CEN on 18 April 1999. CEN members are bound to comply with the CENEENELEC 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 concerni
17、ng 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 lan
18、guage and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden,
19、 Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1999 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Me
20、mbers. Ref. No. EN IS0 11126-7:1999 E - STD.BS1 BS EN IS0 L1LZb-7-ENGL 1996 M Lb24669 O8938b4 57b m EN IS0 11126:1999 Foreword The text of the International Standard from Technical Committee ISO/TC 35, Paints and varnishes, of the International Organization for Standardization (ISO) has been taken o
21、ver as an European Standard by Technical Committee CENPTC 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 November 1999, and con
22、flicting national standards shall be withdrawn at the latest by November 1999. According to the CENICENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France,
23、 Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. NOTE Normative reference to International Standards are listed in Annex ZA (normative). 8 BSI 02-2001 STD*BSI BS EN IS0 LLL26-7-ENGL L99b lb24bb9 0873865 4021 EN I
24、S0 11126-7:1999 WARNING - Equipment, materials and 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 carcinog
25、enic or toxic substances. These regulations are therefore 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 IS0 11126 specifies requirements for fused aluminium oxide abrasives, as supplied for blast-cl
26、eaning processes. It specifies ranges of particle sizes and values for apparent density, Mohs hardness, moisture content, conductivity of aqueous extract and water-soluble chlorides. The requirements specified in this part of IS0 11126 apply to abrasives supplied in the “new“ condition only. They do
27、 not apply to abrasives either during or after use. Test methods for non-metallic blast-cleaning abrasives are given in the various parts of IS0 11127. NOTE 1 Information on commonly referenced national and international standards is given in hex A. NOTE 2 Although this part of IS0 11126 has been de
28、veloped specifically to meet requirements for preparation of steelwork, the properties specified will generally be appropriate for use when preparing other material surfaces, or components, using blast-cleaning techniques. These techniques are described in IS0 8504-2:1992, Preparation of steel subst
29、rates before application ofpaints and related products - Surface preparation methods - Part 2: Abrasive blast-cleaning. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS0 11126. At the time of publication
30、, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of IS0 11126 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of curr
31、ently valid International Standards. IS0 11127-1:1993, Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 1: Sampling. IS0 11127-21993, Preparation of steel substrates before application of paints and rela
32、ted products - Test methods for non-metallic blast-cleaning abrasives -Part 2: Determination ofparticle size distribution. IS0 11127-3:1993, Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 3: Determinat
33、ion of apparent density. IS0 11127-41993, Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 4: Assessment of hardness by a glass slide test. IS0 11127-5:1993, Preparation of steel substrates before applic
34、ation of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 5: Determination of moisture. IS0 11127-61993, Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 6: Det
35、ermination of water-soluble contaminants by conductivity measurement. IS0 11127-71993, Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 7: Determination of water-soluble chlorides. 3 Definition For the p
36、urposes of this part of IS0 11126, the following definition applies. 3.1 fused aluminium oxide a synthetic mineral blast-cleaning abrasive, which is classified as two types, A and WA Type A This type is mainly composed of crystalline corundum which is brown in colour and consists of a solid solution
37、 containing a minimum of 94 % aluminium oxide and a maximum of 4 % titanium dioxide. Type A is produced by fusing bauxite with the appropriate quantity of titanium dioxide and reducing agent in an electric furnace, cooling the form lumps and then crushing and sieving to size Type WA: This type consi
38、sts of crystalline corundum which is whitish in colour and contains at least 99 % aluminium oxide. It is produced by fusing, in an electric furnace, pure alumina and is refined O BSI 02-2001 1 STD.BS1 BS EN IS0 LE126-7-ENGL Lqqb p11 lb24bbq 0893bb 349 - EN IS0 11126-7:1999 4 Designation of abrasives
39、 Fused aluminium oxide abrasives shall be identified by “Abrasive IS0 11126“ and the abbreviation N/FA-A or N/FA-WA indicating non-metallic, fused aluminium oxide abrasive, Type A or WA. This shall be followed, without spaces, by an oblique stroke and then the symbol G to indicate the required parti
40、cle shape of the abrasive, when purchased, as grit. The designation shall be completed by numbers denoting the particle size range, in millimetres, required (see Table 1). EXAMPLE 1 Abrasive IS0 11 126 NLFA-A/G 0,5-1 denotes a non-metallic abrasive of fused aluminium oxide, type A, complying with th
41、e requirements of this part of IS0 11126, of initial particle shape grit and particle size range 0,5 mm to 1 mm. It is essential that this full product designation is quoted on all orders. 5 Sampling 6 Requirements 6.1 General requirements Fused aluminium oxide abrasives shall absorb no water but ma
42、y be wetted on the surface only. Fused aluminium oxide used as an abrasive shall contain no free silica. All silica shall be chemically bound or present in glass form within the corundum crystal matrix. The material shall be free from corrosive and adhesion-impairing contaminants. 6.2 Particular req
43、uirements Particular requirements for fused aluminium oxide abrasive shall be as specified in Table 2. 7 Identification and marking All materials shall be clearly marked or identified using the appropriate designation as specified in clause 4, either directly or by the accompanying delivery note. 8
44、Information to be supplied by the manufacturer or supplier The manufacturer or supplier shall supply, if requested, a test report detailing results for any relevant property as determined by the appropriate method specified in Table 2. Sampling procedures shall be as specified in IS0 11127-1. Table
45、1 - Particle size distribution I Particle size rangea 1092 I to 0,6 Oversize Sieve size Nominal size Sieve size Residue % (mim) Residue % (rn/rn) min. I IUndersize Sieve size mm (0,2 I Through-flow % (rn/rn) max. 15 a By agreement between the interested parties, abrasives of cliff proportions of nom
46、inal size, oversize and undersize shall be sp the proportion of particles less than 0,2 mm shall not exceed 5 le ? 2 Q BSI 02-2001 - STD.BS1 BS EN-IS0 L112b-7-NGL L99b - 3624bb9 08938b7 285 EN IS0 11126-71999 Requirement See Table 1 3,9 to 4,0 X 103 3,9 to 4,0 min. 6 max. 0,2 max. 25 max. 0,002 5 Ta
47、ble 2 - Particular requirements for fused aluminium oxide abrasives Test method IS0 11127-2 IS0 11127-3 IS0 11127-4 IS0 11127-5 IS0 11127-6 IS0 11127-7 Property Particle size range and distribution Apparent density kg/mJ kg/dm31 Mohs hardness Moisture % (m/m) Conductivity of aqueous extract mS/m Wat
48、er-soluble chlorides % (m/m) 8 BSI 02-2001 3 STD*BSI BS EN IS0 LLLZb-7-ENGL L99b lb24bb9 0893868 LLL EN IS0 11126-7:1999 Annex A (informative) Bibliography Commonly referenced IS0 standards and national standards (JIS) for fused aluminium oxides of non-metallic abrasives are as follows: i IS0 3310-1
49、:1990, Test sieves - Technical requirements and testing - Part 1: Test sieves of metal wire cloth 2 IS0 8486-1:-, Bonded abrasives - Grain size analysis -Designation and determination of grain size distribution - Part 1: Macrogrits F 4 to F 2201) 3 IS0 8486-2:-, Bonded abrasives - Grain size analysis - Designation and determination of grain size distribution - Part 2: Microgrits F 230 to F 1 2001). 4 IS0 9284:1992, Abrasive grains - Test sieving machines. 5 JIS R 6001:1987, Abrasive grain sizes. 6 JIS R 6
