1、April 2013 Translation by DIN-Sprachendienst.English price group 13No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、81.080!$8“1999321www.din.deDDIN EN ISO 1927-7Monolithic (unshaped) refractory products Part 7: Tests on pre-formed shapes (ISO 1927-7:2012);English version EN ISO 1927-7:2012,English translation of DIN EN ISO 1927-7:2013-04Ungeformte (monolithische) feuerfeste Erzeugnisse Teil 7: Prfungen an Fertigt
3、eilen (ISO 1927-7:2012);Englische Fassung EN ISO 1927-7:2012,Englische bersetzung von DIN EN ISO 1927-7:2013-04Produits rfractaires monolithiques (non faonns) Partie 7: Essais sur pices pr-formes (ISO 1927-7:2012);Version anglaise EN ISO 1927-7:2012,Traduction anglaise de DIN EN ISO 1927-7:2013-04Su
4、persedesDIN EN 1402-7:2004-01www.beuth.deDocument comprises 28 pagesIn case of doubt, the German-language original shall be considered authoritative.03.13 DIN EN ISO 1927-7:2013-04 2 A comma is used as the decimal marker. National foreword ISO 1927-7 has been prepared by Technical Committee ISO/TC 3
5、3 “Refractories” and has been taken over as EN ISO 1927-7 by Technical Committee CEN/TC 187 “Refractory products and materials” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Materialprfung (Materials Testing Standards Committee),
6、Working Committee NA 062-02-57 AA Ungeformte, dichte geformte und wrmedmmende feuerfeste Erzeugnisse und Werkstoffe. EN ISO 1927 consists of the following parts, under the general title Monolithic (unshaped) refractory products: Part 1: Introduction and classification Part 2: Sampling for testing Pa
7、rt 3: Characterization as received Part 4: Determination of consistency of castables Part 5: Preparation and treatment of test pieces Part 6: Measurement of physical properties Part 7: Tests on pre-formed shapes Part 8: Determination of complementary properties The DIN Standards corresponding to the
8、 International Standards referred to in this document are as follows: ISO 1927-1 DIN EN ISO 1927-1 ISO 1927-3 DIN EN ISO 1927-3 ISO 1927-5 DIN EN ISO 1927-5 ISO 1927-6 DIN EN ISO 1927-6 Amendments This standard differs from DIN EN 1402-7:2004-01 as follows: a) the content of EN ISO 1927-7 (based on
9、EN 1402-7) has been adopted in full; b) references to EN Standards have been replaced by references to the relevant ISO Standards and have been updated, e.g. in Clause 1. Previous editions DIN V ENV 1402-7: 1998-10 DIN EN 1402-7: 2004-01 DIN EN ISO 1927-7:2013-04 3 National Annex NA (informative) Bi
10、bliography DIN EN ISO 1927-1, Monolithic (unshaped) refractory products Part 1: Introduction and classification DIN EN ISO 1927-3, Monolithic (unshaped) refractory products Part 3: Characterization as received DIN EN ISO 1927-5, Monolithic (unshaped) refractory products Part 5: Preparation and treat
11、ment of test pieces DIN EN ISO 1927-6, Monolithic (unshaped) refractory products Part 6: Measurement of physical properties DIN EN ISO 1927-7:2013-04 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1927-7 December 2012 ICS 81.080 Supersedes EN 1402-7:2003
12、English Version Monolithic (unshaped) refractory products Part 7: Tests on pre-formed shapes (ISO 1927-7:2012) Produits rfractaires monolithiques (non faonns) Partie 7: Essais sur pices pr-formes (ISO 1927-7:2012) Ungeformte (monolithische) feuerfeste Erzeugnisse Teil 7: Prfungen an Fertigteilen (IS
13、O 1927-7:2012) This European Standard was approved by CEN on 30 November 2012. 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 bib
14、liographical references concerning such national standards may be obtained on application 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 respo
15、nsibility of a CEN member into its own language and notified to the CEN-CENELEC Management 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, Former Yugoslav Rep
16、ublic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORM
17、ALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 1927-7:2012: E Contents PageForeword 1 Scope .2 Normative references 3 Terms and
18、 definitions .4 Principle 5 Apparatus .6 Inspection by attributes 6.1 Preparation of the test piece .6.2 Measurement of dimensions .6.3 Measurement of angles 6.4 Measurement of warpage .6.5 Measurement of corner defects .6.6 Measurement of edge defects 6.7 Measurement of craters and bubbles .6.8 Mea
19、surement of cracks .6.9 Measurement of protrusions and indentations .6.10 Measurement of fins 6.11 Segregations .6.12 Friability 7 Inspection by variables .7.1 Destructive test methods 7.2 Non-destructive test methods 8 Test report Bibliography .2DIN EN ISO 1927-7:2013-04 EN ISO 1927-7:2012 (E) 3444
20、7799991011121314141515151515172224ForewordISO (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 inte
21、rested in a subject for which 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 Electrotechnica
22、l Commission (IEC) on all matters 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 tec
23、hnical committees are circulated 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
24、shall not be held responsible for identifying any or all such patent rights.ISO 1927-7 was prepared by Technical Committee ISO/TC 33, Refractories.ISO 1927 consists of the following parts, under the general title Monolithic (unshaped) refractory products: Part 1: Introduction and classification Part
25、 2: Sampling for testing Part 3: Characterization as received Part 4: Determination of consistency of castables Part 5: Preparation and treatment of test pieces Part 6: Measurement of physical properties Part 7: Tests on pre-formed shapes Part 8: Determination of complementary properties3DIN EN ISO
26、1927-7:2013-04 EN ISO 1927-7:2012 (E) 1 ScopeThis part of ISO 1927 specifies methods for the testing of as-delivered pre-formed shapes. It applies to shapes fabricated from dense and insulating castables and ramming materials as defined in ISO 1927-1.NOTE Acceptance values for the individual test me
27、thods described should be agreed between the parties involved.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 (
28、including any amendments) applies.ISO 1927-1, Monolithic (unshaped) refractory products Part 1 Introduction and classificationISO 1927-6, Monolithic (unshaped) refractory products Part 6: Measurement of physical properties3 Terms and definitionsFor the purposes of this document, the following terms
29、and definitions apply.3.1corner defectmissing corner, defined by the three dimensions a, b and c as indicated in Figure 1 4DIN EN ISO 1927-7:2013-04 EN ISO 1927-7:2012 (E) cbaKeya, b and c Three dimensions defining the missing cornerFigure 1 Typical corner defect3.2edge defectmissing edge, defined b
30、y the three dimensions, e, f, and g as indicated in Figure 2 gefKeye, f, and g Three dimensions defining the missing edgeFigure 2 Typical edge defect3.3craterclearly defined hole in the surface of a shape whose parameters, i.e. maximum diameter, minimum diameter and depth, can be measuredNOTE Its or
31、igin can be a bubble produced during manufacture.5DIN EN ISO 1927-7:2013-04 EN ISO 1927-7:2012 (E) 3.4hairline cracksfine cracks visible on the surface of a shape whose length can be measured and whose width is less than or equal to 0,2 mm, see Figure 3 123Key1 Hairline crack2 Surface crazing3 Open
32、cracksFigure 3 Typical cracks3.5surface crazingnetwork of hairline cracks confined to the surface of the shape, see Figure 33.6open crackscracks or tears on the surface whose length is more than 10 mm and whose width is more than 0,2 mm See Figure 3.3.7protrusions and indentationsimperfections that
33、can occur during fabrication or firing, if applicable3.8finsthin layer of material on the face of a shape that projects beyond the edge3.9segregationseparation of aggregate and fines during fabrication to leave a honeycomb appearance and/or a layer of excess fines3.10friabilitycrumbly texture due to
34、 poor consolidation and/or mould leakage3.11warpagedeviation of a plane surface from being flat6DIN EN ISO 1927-7:2013-04 EN ISO 1927-7:2012 (E) 4 PrincipleTesting of pre-formed shapes by qualitative and/or quantitative methods. These methods are of two types:a) Inspection by attributes by evaluatin
35、g the integrity of a refractory shape by visual inspection of cracks or other surface defects and by conformance to dimensional tolerances;b) Inspection by variables by evaluating the quality of a refractory shape by determining physical properties using appropriate destructive or non-destructive te
36、st methods.NOTE It is not obligatory to use all the test methods described in this part of ISO 1927 when determining the quality of a pre-formed shape.5 Apparatus5.1 Linear measuring devices, steel tape and/or callipers in accordance with the tolerance required and conforming to an accuracy that is
37、twice the intended accuracy of the measurement.NOTE Where possible, linear tolerances less than 1 mm should be measured with callipers. Steel tape measurements are accurate to the millimetre (0,5 mm can be estimated) whereas callipers are accurate to 0,1 mm.5.2 Steel straightedge, at least 5 mm thic
38、k and of sufficient length to span the diagonal of the largest shape to be measured.5.3 Two steel measuring wedges, which shall be either:a) type 1, at least 50 mm in length and 10 mm in thickness at one end, of uniform cross-section for a length of at least 10 mm from that end and then tapering to
39、zero thickness at the other end (see for example Figure 4a), orb) type 2, up to 160 mm in length with an even taper from 4 mm to zero (see for example Figure 4b).Each wedge shall be graduated and numbered along the slope to show the thickness of the wedge between the base and the slope in increments
40、 of either 0,5 mm (type 1) or 0,1 mm (type 2).Dimensions in millimetres108642501010a) Type 17DIN EN ISO 1927-7:2013-04 EN ISO 1927-7:2012 (E) 40383634323028262422201816141210864 2 10 354160b) Type 2Figure 4 Two types of measuring wedge5.4 Graticule, with 0,1 mm graduations and/or feeler gauges of an
41、 appropriate size and accuracy to be used for the measurement of crack width. If necessary, the gauges can be replaced by measuring wedges of appropriate accuracy.5.5 Sliding bevel, for the measurement of angles.5.6 Depth gauge calibrated in millimetres of depth, having a probe of 3 mm diameter.5.7
42、Breakage defect sizer, with a slot uncovering 2 mm on both surfaces, for determination of minimum defect sizes for corner and edge defects, according to Figure 5.NOTE 1 One breakage defect sizer can be used together with a steel straightedge for the measurement of corner defects (see 6.5). Two break
43、age defect sizers can be used together with a linear measuring device for the measurement of edge defects (see 6.6).NOTE 2 A breakage defect sizer permits an objective definition of the point of departure for the measurement of the size of a broken edge.Dimensions in millimetres3303010030322Figure 5
44、 Breakage defect sizer8DIN EN ISO 1927-7:2013-04 EN ISO 1927-7:2012 (E) 5.8 Balance, capable of measuring to an accuracy of 1 %.5.9 Ultrasonic pulse velocity measuring equipment.5.10 Equipment for determining the resonant frequency by mechanical shock.5.11 Rebound hammer.5.12 Drying oven, capable of
45、 being controlled at 110 C 5 C.5.13 Furnace, capable of operating at 1 050 C 25 C.6 Inspection by attributes6.1 Preparation of the test pieceThe definition of edges may be improved, after any protrusions or indentations have been measured, by removing any projections such as fins or protrusions. Thi
46、s can normally be achieved by light abrasion.6.2 Measurement of dimensionsLinear dimensions shall be measured by means of a linear measuring device (see 5.1), and unless otherwise agreed, shall be measured to the nearest 0,5 mm.6.3 Measurement of anglesAngles shall be measured by adjusting the slidi
47、ng bevel to fit the shape (see Figure 6) and the angle determined by the use of a protractor (see Figure 7).Figure 6 Positioning the sliding bevel9DIN EN ISO 1927-7:2013-04 EN ISO 1927-7:2012 (E) Figure 7 Measurement of the angle6.4 Measurement of warpageFor a concave surface, place the straightedge
48、 on edge across a diagonal of the surface being tested, insert a wedge at the point of maximum warpage (ensuring that the reading is not affected by raised imperfections on the castable surface) and record the maximum obtainable reading to the nearest 0,5 mm at the point of contact between the wedge and the straightedge.For a convex surface, insert a wedge at each end of the straightedge and perpendicular to it as shown in Figure 8. Adjust the wedges, to a position not m
