1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 1927-8:2012Monolithic (unshaped) r e f r a c t o r y p r o d u c t sPart 8: Determination of complementary propertiesBS EN ISO 1927-8:2012 BRITISH STANDARDNational fore
2、wordThis British Standard is the UK implementation of EN ISO 1927-8:2012. It supersedes BS EN 1402-8:2003, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee RPI/1, Refractory products and materials.A list of organizations represented on this committee ca
3、n be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012. Published by BSI Standards Limited 2012.ISBN 978 0 580 65763 4 ICS 81.080 Comp
4、liance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2012.Amendments issued since publicationDate Text affected EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE N
5、ORM EN ISO 1927-8 December 2012 ICS 81.080 Supersedes EN 1402-8:2003English Version Monolithic (unshaped) refractory products - Part 8: Determination of complementary properties (ISO 1927-8:2012)Produits rfractaires monolithiques (non faonns) - Partie 8: Dtermination des caractristiques complmentair
6、es (ISO 1927-8:2012) Ungeformte (monolithische) feuerfeste Erzeugnisse - Teil 8: Bestimmung zustzlicher Eigenschaften (ISO 1927-8:2012)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 conditi
7、ons for giving this European 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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists i
8、n 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 language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standar
9、ds bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slove
10、nia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION 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 fo
11、r CEN national Members. Ref. No. EN ISO 1927-8:2012: EBS EN ISO 1927-8:2012 EN ISO 1927-8:2012 (E) 3 Foreword This document (EN ISO 1927-8:2012) has been prepared by Technical Committee ISO/TC 33 “Refractories“in collaboration with Technical Committee CEN/TC 187 “Refractory products and materials” t
12、he secretariat ofwhich is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by June 2013, and conflicting national standards shall be withdrawn atthe latest by June 2013. Attention is drawn
13、 to the possibility that some of the elements of this document may be the subject of patentrights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1402-8:2003. According to the CEN/CENELEC Internal Regulations, the national
14、standards organisations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, CzechRepublic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
15、Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 1927-8:2012 has been approved by CEN as a EN ISO 1927-8:2012 without any modification. BS EN ISO 1927-8:2012ISO 1927-8:2
16、012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Principle 14 Determination of permeability to gases 24.1 Principle 24.2 Test pieces . 24.3 Procedure 25 Determination of the resistance to thermal shock . 25.1 Principle 25.2 Test pieces . 25.3 Proced
17、ure 26 Determination of thermal conductivity 36.1 Principle 36.2 Test pieces . 36.3 Procedure 37 Determination of sulfuric acid resistance 37.1 Principle 37.2 Test pieces . 37.3 Procedure 38 Tests for products containing carbon . 38.1 Principle 38.2 Test pieces . 48.3 Procedure 49 Determination of t
18、he resistance to carbon monoxide . 410 Determination of resistance to abrasion at ambient temperature 411 Test report . 4BS EN ISO 1927-8:2012ISO 1927-8:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies).
19、 The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested 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-
20、governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical 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
21、.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical 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 v
22、ote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 1927-8 was prepared by Technical Committee ISO/TC 33, Refractories.ISO 1927 consists of the fo
23、llowing parts, under the general title Monolithic (unshaped) refractory products: Part 1: Introduction and classification Part 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: Measu
24、rement of physical properties Part 7: Tests on pre-formed shapes Part 8: Determination of complementary propertiesiv ISO 2012 All rights reservedBS EN ISO 1927-8:2012INTERNATIONAL STANDARD ISO 1927-8:2012(E)Monolithic (unshaped) refractory products Part 8: Determination of complementary properties1
25、ScopeThis part of ISO 1927 specifies methods for the determination of the properties of unshaped refractory materials from test pieces prepared and stored in accordance with ISO 1927-5. The methods complement those described in ISO 1927-6.The methods have been adapted from standards for shaped refra
26、ctory products to make them applicable to dense and insulating castables, and ramming materials as defined in ISO 1927-1, before and after firing.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition ci
27、ted applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 8841, Dense, shaped refractory products Determination of permeability to gasesISO 1927-1, Monolithic (unshaped) refractory products Part 1: Introduction and classificationISO 192
28、7-2, Monolithic (unshaped) refractory products Part 2: Sampling for testingISO 1927-3, Monolithic (unshaped) refractory products Part 3: Characterization as receivedISO 1927-5, Monolithic (unshaped) refractory products Part 5: Preparation and treatment of test piecesISO 1927-6, Monolithic (unshaped)
29、 refractory products Part 6: Measurement of physical propertiesISO 8894-1, Refractory materials Determination of thermal conductivity Part 1: Hot-wire methods (cross-array and resistance thermometer)ISO 8894-2, Refractory materials Determination of thermal conductivity Part 2: Hot-wire method (paral
30、lel)ISO 8890, Dense shaped refractory products Determination of resistance to sulfuric acidISO 10060,Dense, shaped refractory products Test methods for products containing carbonISO 12676, Refractory products Determination of resistance to carbon monoxideISO 16282, Methods of test for dense shaped r
31、efractory products Determination of resistance to abrasion at ambient temperatureEN 993-11:2007, Methods of test for dense shaped refractory products Part 11: Determination of resistance to thermal shock3 PrincipleThe complementary properties of unshaped refractory products are determined by the pro
32、cedures given in ISO 8890, ISO 8841, ISO 8894-1, ISO 8894-2, ISO 10060, ISO 16282, ISO 1927-1, ISO 1927-2, ISO 1927-3, ISO 1927-5, ISO 1927-6, ISO 12676 and EN 993-11. ISO 2012 All rights reserved 1BS EN ISO 1927-8:2012ISO 1927-8:2012(E)The methods complement those described in ISO 1927-6. It is not
33、 necessary to use all the methods to characterize a material.4 Determination of permeability to gases4.1 PrincipleThis determination shall be carried out on test pieces after drying or after firing at a temperature and time to be agreed between the parties involved.4.2 Test piecesUse cylindrical tes
34、t pieces with dimensions as defined in ISO 8841 and obtained from shapes A, B or C by sawing or coring, and prepared, stored, dried and/or fired according to the relevant sections of ISO 1927-5. The direction from which the test pieces are cut with regard to the direction of shaping shall be stated
35、in the test report; the plane faces of the cylinder shall be at least at 4 mm away from the initial faces of the shape.If the test pieces cannot be obtained by sawing or coring, due to the nature of the material, they may be prepared directly and this shall be noted in the test report.In all cases,
36、the test pieces shall be dried at 110 C 5 C for a minimum of 24 h and fired at a temperature and time to be defined between the parties and noted in the test report.4.3 ProcedureDetermine the permeability to gases in accordance with ISO 8841.5 Determination of the resistance to thermal shock5.1 Prin
37、cipleThis determination shall be carried out on test pieces fired at a temperature equal to or higher than the temperature of the test.The standard quenching temperature shall be 950 C and prefiring of the test pieces shall be carried out at 950 C or above for 5 h.Other quenching and prefiring tempe
38、ratures and times may be agreed upon by the parties concerned and shall be noted in the test report.5.2 Test piecesTest pieces with dimensions of shape B, i.e. 230 mm 64 mm 54 mm shall be used. They shall be prepared and prefired according to ISO 1927-5 at a temperature and time agreed between the i
39、nvolved parties (see 5.1).NOTE The use of other shapes may be agreed by the parties, but the results are not comparable with those using the test pieces stated above.5.3 ProcedureDetermine the resistance to thermal shock of the prefired test pieces in accordance with method B of EN 993-11:2007.2 ISO
40、 2012 All rights reservedBS EN ISO 1927-8:2012ISO 1927-8:2012(E)6 Determination of thermal conductivity6.1 PrincipleThis determination may be carried out on fired or unfired, dried test pieces in accordance with ISO 8894-1 (hot wire, cross array) or with ISO 8894-2 (hot wire, parallel).For both fire
41、d and unfired, dried test pieces, variation in thermal conductivity can occur due to time-dependent mineralogical and microstructural changes if the test piece has not been prefired to a temperature equal to or higher than the measurement temperature.It is therefore necessary to take special care to
42、 ensure that equilibrium is attained when testing such test pieces. This can entail holding the test furnace at the measurement temperature for prolonged periods.6.2 Test piecesTest pieces shall be used corresponding to shape A as defined in ISO 1927-5.For fired test pieces, the firing shall be carr
43、ied out in accordance with ISO 1927-5 or as agreed between the parties.6.3 ProcedureDetermine the thermal conductivity at each defined measurement temperature in accordance with ISO 8894-1 (hot wire, cross array) or ISO 8894-2 (hot wire, parallel). For unfired test pieces, the rate of rise of the te
44、st furnace shall be in accordance with that specified in ISO 1927-5 for the type of material under test.In all cases where the test piece has been prefired, (either before or during the test) to a lower temperature than the measurement temperature, it may be necessary to maintain the furnace at this
45、 temperature for extended periods to attain equilibrium. In some cases, it is advisable to maintain the temperature overnight.7 Determination of sulfuric acid resistance7.1 PrincipleDetermination of sulfuric acid resistance consists of the chemical attack by sulfuric acid on test pieces crushed to a
46、 specific grain size.7.2 Test piecesUse shape A test pieces prepared in accordance with ISO 1927-5, stored and dried at 110 C 5 C for a minimum of 24 h. Samples shall be taken out from test pieces in accordance with ISO 8890.Any pre-treatment of the test pieces shall be agreed between the parties an
47、d noted in the test report.7.3 ProcedureDetermine the resistance to sulfuric acid in accordance with ISO 8890.8 Tests for products containing carbon8.1 PrincipleThe physical properties of products containing carbon are determined before and after removal of volatile components by carbonization and a
48、fter removal of all of the carbon. ISO 2012 All rights reserved 3BS EN ISO 1927-8:2012ISO 1927-8:2012(E)8.2 Test piecesThe test pieces shall be of the size specified for each individual test method and shall be taken from shapes A, B or C, and prepared in accordance with ISO 1927-5.8.3 Procedure8.3.
49、1 Tests before carbonizationThe physical properties of the prepared test pieces shall be determined in accordance with ISO 10060.8.3.2 Tests after carbonizationVolatile components shall be removed according to the carbonizing procedure defined in ISO 10060 which also entails the determination of the following properties: carbonization mass loss; residual carbon content; carbon yield.Determination of the physical properties of the carbonized test pieces shall be carried out in accordance with I
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