1、BRITISH STANDARD CONFIRMED DECEMBER1998 BS EN ISO 11125-7:1997 BS7079-E12: 1994 Incorporating Amendment No.1 to BS7079-E12:1994 (renumbers BS as BE EN ISO 11125-7:1997) Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasive
2、s Part 7: Determination of moisture The European Standard EN ISO11125-7:1997 has the status of a BritishStandard ICS 25.220.10;87.020BSENISO11125-7:1997 This BritishStandard, having been prepared under the directionof the Surface Treatments and Coatings Standards Policy Committee, waspublished under
3、 the authorityof the Standards Boardand comes intoeffecton 15March1994 BSI 04-2000 The following BSI references relate to the work on this standard: Committee reference STC/21 Draft for comment92/50240 DC ISBN 0 580 23064 3 Committees responsible for this BritishStandard The preparation of this Brit
4、ishStandard 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 British Coatings Federation Lt
5、d. 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 Chemists Association Paint Rese
6、arch Association Royal Society of Chemistry Amendments issued since publication Amd. No. Date Comments 9725 November 1997 Indicated by a sideline in the marginBSENISO11125-7:1997 BSI 04-2000 i Contents Page Committees responsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Normati
7、ve references 3 3 Apparatus 3 4 Sampling 3 5 Procedure 3 6 Expression of results 3 7 Test report 3 Annex A (informative) International Standards for metallic blast-cleaning abrasives 4 Annex ZA (normative) Normative references to international publications with their relevant European publications 4
8、 List of references Inside back coverBSENISO11125-7:1997 ii BSI 04-2000 National foreword This BritishStandard has been prepared by Technical Committee STC/21 and is the English language version of Treatments and Coatings Standards Policy Committee. It is identical with EN ISO11125-7:1997 Preparatio
9、n of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part7: Determination of moisture, published by the European Committee for Standardization (CEN). It is identical with ISO11125-7:1993, published by the International Organizatio
10、n for Standardization (ISO). International Standard ISO11125-7 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 ISO11125 are: Part 1: Sampling; Part 2: D
11、etermination of particle size distribution; Part 3: Determination of hardness; Part 4: Determination of apparent density; Part 5: Determination of percentage defective particles and microstructure; Part 6: Determination of foreign matter. A British Standard does not purport to include all the necess
12、ary provisions of 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-reference Publication referred to Corresponding BritishStandard EN ISO11125-1:1997 (ISO11125-1:1
13、993) BS EN ISO11125 Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part1:1997 Sampling Summary of pages This document comprises a front cover, an inside front cover, pagesi andii, theEN ISO title page, pages2 to4,
14、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 inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO11125-7 June1997 ICS 87.020 Descriptors
15、: Paints, varnishes, substrates,steel products, blast-cleaning, abrasives, metallic abrasives, tests, determination of content, humidity English version Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part7: Determi
16、nation of moisture (ISO11125-7:1993) Prparation des subjectiles dacier avant application de peintures et de produits assimils Mthodes dessai pour abrasifs mtalliques destins la prparation par projection Partie7: Dtermination de lhumidit (ISO11125-7:1993) Vorbereitung von Stahloberflchen vor dem Auft
17、ragen von Beschichtungsstoffen Prfverfahren fr metallische Strahlmittel Teil7: Bestimmung der Feuchte (ISO11125-7:1993) 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 Eu
18、ropean 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 application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (Engli
19、sh, 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 Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepubl
20、ic, Denmark, Finland, France, Germany, Greece, Iceland, 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 Stassa
21、rt 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO11125-7:1997 EENISO11125-7:1997 2 BSI 04-2000 Foreword The text of the International Standard from Technical Committee ISO/TC35, Paints and varnishes, o
22、f the International Organization for Standardization (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
23、identical text or by endorsement, at the latest by 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 St
24、andard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and theUnitedKingdom. NOTENormative references to International Standards are listed in Annex ZA (normative)ENISO11125-7:
25、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 abrasives for blast-cleaning. The types of metallic abrasive and requirements on each are contained in the various parts of ISO11124. The ISO11124 and ISO11125 series have been d
26、rafted as a coherent set of International Standards on metallic blast-cleaning abrasives. Information on all parts of both series is given in Annex A. This part of ISO11125 specifies a test method for the determination of the level of free moisture present in metallic blast-cleaning abrasives. It is
27、 determined by measuring the mass lost on heating. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this part of ISO11125. At the time of publication, the edition indicated was valid. All standards are subject to revisio
28、n, and parties to agreements based on this part of ISO11125 are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 11125-1:1993, Preparation of steel
29、substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part1: Sampling. 3 Apparatus Ordinary laboratory apparatus and glassware, together with the following: 3.1 Balance, capable of weighing to an accuracy of0,01g. 3.2 Oven, capable of being m
30、aintained at a temperature of(110 5) C. 3.3 Container or tray, capable of withstanding the heat applied and of sufficient volume to allow the test portion to be spread in a thin layer. 3.4 Desiccator, containing a desiccant such as dried silica gel impregnated with cobalt chloride. 4 Sampling Take a
31、 representative sample of the product to be tested, as described in ISO11125-1. Be sure to store the sample in a sealed container until required. 5 Procedure Carry out the determination in duplicate. 5.1 Test portion Dry the container(3.3) in the oven(3.2) at(110 5) C for15min and allow it to cool t
32、o room temperature in the desiccator(3.4). Weigh, using the balance(3.1), the container to the nearest0,01g. Weigh into the container, to the nearest0,01g, a test portion of approximately100g(m 0 ). 5.2 Determination Place the container with the test portion in the oven(3.2), previously adjusted to(
33、110 5) C, and leave for at least1h. Transfer the container to the desiccator and allow to cool to room temperature. Reweigh the container with the dried test portion to the nearest0,01g and determine the mass of the dried test portion (m 1 ). 6 Expression of results Calculate the moisture content M,
34、 expressed as a percentage by mass, using the equation If the duplicate determinations differ by more than0,05% (absolute) repeat the procedure described in clause5. Calculate the mean of two valid determinations and report the result to the nearest0,01%. 7 Test report The test report shall contain
35、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 (ISO11125-7); c) the result of the test; d) any deviation from the test method specif
36、ied; e) the date of the test; f) the name of the person who carried out the test. where m 0 is the mass, in grams, of the test portion before heating; m 1 is the mass, in grams, of the test portion after heating. M m 0 m 1 m 0 -100 =ENISO11125-7:1997 4 BSI 04-2000 Annex A (informative) International
37、 Standards for metallic blast-cleaning abrasives Requirements and test methods for metallic blast-cleaning abrasives are contained in ISO11124 and ISO11125, respectively. ISO11124 will consist of the following parts, under the general title: Preparation of steel substrates before application of pain
38、ts and related products Specification for metallic blast-cleaning abrasives Part 7: 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 ISO11125 will consist of the following parts, u
39、nder the general title: Preparation of steel substrates before application of paints and related products Test methods for metallic blast-cleaning abrasives Part 7: Sampling Part 2: Determination of particle size distribution Part 3: Determination of hardness Part 4: Determination of apparent densit
40、y Part 5: Determination 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 Annex ZA (normative) Normative references to international publications with their relevan
41、t 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 amendments to or revis
42、ions 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 refereed to applies. Publication Year Title EN Year ISO 11125-1 1993 Preparation of steel substrates before applicatio
43、n ofpaints and related products Test methods formetallic blast-cleaning abrasives Part1: Sampling EN ISO11125-1 1997BSENISO11125-7:1997 BSI 04-2000 List of references See national foreword.BS EN ISO 11125-7:1997 BS7079-E12: 1994 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution
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