EN ISO 1927-2-2012 en Monolithic (unshaped) refractory products - Part 2 Sampling for testing《单片(粗制的)耐火材料产品 第2部分 抽样进行测试(取代CEN 1402 -2)》.pdf

《EN ISO 1927-2-2012 en Monolithic (unshaped) refractory products - Part 2 Sampling for testing《单片(粗制的)耐火材料产品 第2部分 抽样进行测试(取代CEN 1402 -2)》.pdf》由会员分享，可在线阅读，更多相关《EN ISO 1927-2-2012 en Monolithic (unshaped) refractory products - Part 2 Sampling for testing《单片(粗制的)耐火材料产品 第2部分 抽样进行测试(取代CEN 1402 -2)》.pdf（20页珍藏版）》请在麦多课文档分享上搜索。

1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN ISO 1927-2:2012Monolithic (unshaped) r e f r a c t o r y p r o d u c t sPart 2: Sampling for testingBS EN ISO 1927-2:2012 BRITISH STANDARDNational forewordThis British Stan

2、dard is the UK implementation of EN ISO 1927-2:2012. It supersedes BS EN 1402-2:2003, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee RPI/1, Refractory products and materials.A list of organizations represented on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 can be obtained on requ

3、est 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 65757 3 ICS 81.080 Compliance with a British

4、 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 affectedEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 1927-2 Dece

5、mber 2012 ICS 81.080 Supersedes EN 1402-2:2003English Version Monolithic (unshaped) refractory products - Part 2: Sampling for testing (ISO 1927-2:2012) Produits rfractaires monolithiques (non faonns) - Partie 2: chantillonnage (ISO 1927-2:2012) Ungeformte (monolithische) feuerfeste Erzeugnisse - Te

6、il 2: Probenahme (ISO 1927-2:2012) 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-t

7、o-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 in three official versions (English, French, German). A version in any other language made by transla

8、tion 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 standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland,

9、 Former Yugoslav Republic 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 C

10、OMIT 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 for CEN national Members. Ref. No. EN ISO 1927-2:2012: EBS EN ISO 1927-2:2012 EN ISO 1927-2:2012 (E) 3

11、 Foreword This document (EN ISO 1927-2:2012) has been prepared by Technical Committee ISO/TC 33 “Refractories“ in collaboration with Technical Committee CEN/TC 187 “Refractory products and materials” the secretariat of which is held by BSI. This European Standard shall be given the status of a natio

12、nal standard, either by publication of an identical text or by endorsement, at the latest by June 2013, and conflicting national standards shall be withdrawn at the latest by June 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent righ

13、ts. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 1402-2:2003. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Sta

14、ndard: 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, Slovenia, S

15、pain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 1927-2:2012 has been approved by CEN as a EN ISO 1927-2:2012 without any modification. BS EN ISO 1927-2:2012ISO 1927-2:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Normative ref

16、erences . 13 Terms and definitions . 14 Sampling scheme 24.1 General principles . 24.2 Procurement of the batch sample . 34.3 Size reduction of the increments 54.4 Test-piece increment achievement . 65 Marking, package, storage of increments 75.1 Marking . 75.2 Package 75.3 Storage . 76 Sampling rep

17、ort . 8Annex A (informative) Example of sampling . 9BS EN ISO 1927-2:2012ISO 1927-2:2012(E)ForewordISO (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 ou

18、t 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-governmental, in liaison with ISO, also take part in the work. ISO co

19、llaborates 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.The main task of technical committees is to prepare International St

20、andards. 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 vote.Attention is drawn to the possibility that some of the elements o

21、f this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 1927-2 was prepared by Technical Committee ISO/TC 33, Refractories.ISO 1927 consists of the following parts, under the general title Monolithic (unshaped) refracto

22、ry 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: Measurement of physical properties Part 7: Tests on pre-formed shapes Part

23、 8: Determination of complementary propertiesiv ISO 2012 All rights reservedBS EN ISO 1927-2:2012INTERNATIONAL STANDARD ISO 1927-2:2012(E)Monolithic (unshaped) refractory materials Part 2: Sampling for testing1 ScopeThis part of ISO 1927 gives guidance on the sampling of monolithic (unshaped) refrac

24、tory materials for the purpose of inspection and testing for quality and general information on the reduction and treatment of samples prior to testing. It covers all materials formulated as monolithic refractory materials.NOTE The term “monolithic” is the preferred term, whereas “unshaped” is commo

25、nly used in Europe. For the purposes of this part of ISO 1927, the terms “monolithic” and “unshaped” can be used interchangeably.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For

26、undated references, the latest edition of the referenced document (including any amendments) applies.ISO 5022, Shaped refractory products Sampling and acceptance testingISO 8656-1, Refractory products Sampling of raw materials and unshaped products Part 1: Sampling schemeISO 10725, Acceptance sampli

27、ng plans and procedures for the inspection of bulk materials3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1batchquantity of material from which a sample is to be achieved for testing to determine the quality of the materialNOTE A batch consists

28、 of material characterized as being of the same type, composition, grading and which, as far as practical, has been manufactured under the same conditions.3.2consignmentquantity of material supplied at one timeNOTE A consignment may consist of one or more batches or parts of batches.3.3unit packagep

29、ackaged part of a batch which can be a bag or a big bag (castables, gunning material, ramming mixes), a carton (plastics), wrapped block (tap-hole mixes), a drum or a can (injection material, refractory grout)NOTE A pallet is not a unit package.3.4incrementquantity of material taken at one time from

30、 a larger quantity ISO 2012 All rights reserved 1BS EN ISO 1927-2:2012ISO 1927-2:2012(E)3.4.1elementary incrementquantity of material taken at one time from a unit packageNOTE This operation repeated a number of times will constitute a package increment after mixing.3.4.2package incrementincrement t

31、hat is representative of the unit packageNOTE 1 It can be the unit package itself or the result of mixing a certain number of elementary increments.NOTE 2 The mass and number of elementary increments which are necessary to form the package increment are defined in accordance with ISO 8656-1.3.4.3lab

32、oratory incrementpackage increment that has been reduced by an approved method3.4.4test-piece incrementtest bars or cylinders obtained by shaping the laboratory increment necessary to carry out several physical tests EXAMPLE Castable test bars for cold modulus of rupture testing.3.5sampleone or more

33、 increments taken from a batch which are to be used to provide information on the batch and to allow a decision concerning the quality of the batch3.5.1batch sampleset of package increments representative of the batchNOTE The number of package increments which are to form the batch sample should be

34、agreed by the principal parties involved. ISO 5022 or other sampling schemes may be used.3.5.2laboratory sampleset of laboratory incrementsNOTE The number of laboratory increments is the same as the number of package increments.3.5.3test-piece sampleset of test-piece incrementsNOTE The number of tes

35、t increments can be higher than the number of laboratory increments and is governed by international test standards.4 Sampling scheme4.1 General principles4.1.1 It is essential that the adoption of a particular sampling scheme be agreed by the principal parties and that a detailed sampling plan be d

36、ocumented and made available to those responsible for the taking and testing of the increments. The basic framework of a scheme requires decisions and documentation on the following:a) the constitution and description of the total material to be sampled;b) the identification of batches and quantitie

37、s which make up the total material;2 ISO 2012 All rights reservedBS EN ISO 1927-2:2012ISO 1927-2:2012(E)c) the type of packaging and mass content for each type of material;d) the parties responsible for sampling and testing who may be third parties;e) the location, timing and method of sampling;f) t

38、he level of sampling, population of increments;g) the properties to be measured;h) the methods of test (reference to International Standard number);i) the criteria for assessing values of measured properties for deciding batch quality.4.1.2 In all cases during sampling, increment division, preparati

39、on and storage of the increments, care shall be taken to protect against any changes in the properties to be tested.4.1.3 Sampling shall be performed under the supervision of a person having adequate experience on sampling. The sampler shall be approved either by the interested parties or by the app

40、ropriate body or bodies. The sampler shall be informed of the aim of the sampling.4.1.4 When individual batches are identified, agreement should be made between the parties on whether, or to what degree, a large batch should be subdivided into smaller batches. This may be undertaken to avoid the pos

41、sibility of the whole of a large batch being rejected because of a problem with a proportion of it.4.1.5 When a sample is required for third-party certification of factory production control as the product is being made, the sample shall be achieved by the same method that the producer uses to obtai

42、n a sample for production control purposes.4.1.6 Where required, the consignment may be subdivided into individual test batches, for example, if it is clear that the consignment consists of various batches or should be treated in separate partial quantities.4.1.7 The sampling framework is presented

43、in Figures A.1 to A.3.4.2 Procurement of the batch sample4.2.1 MethodIdentify the test batch, i.e. of the consignment or part of the consignment to be sampled (nature of the product, mass, transport conditions, etc.).Identify the unit package. The average mass (m) of this unit package shall be known

44、.Obtain the number of package increments which form the batch sample as agreed between parties. The sampling scheme of ISO 5022 can be agreed by the parties if the unit packages, considered as equivalent to shaped pieces, weigh less than 35 kg.Randomly, select this number of the unit packages from t

45、he batch.Proceed to sample the selected unit packages, if their mass is more than 35 kg. This means obtain a package increment of each of these unit packages. In this case, ISO 8656-1 shall be applied to determine the mass and the number of elementary increments which are necessary to obtain the pac

46、kage increment:a) Estimate the maximum grain size of the material. This estimation is important because the minimum mass of the elementary increment shall be determined, taking into account the maximum grain size of the material in order to avoid systematic errors during sampling (see Table 1). ISO

47、2012 All rights reserved 3BS EN ISO 1927-2:2012ISO 1927-2:2012(E)Table 1 Minimum mass of elementary increment depending on the maximum grain sizeMaximum grain sizemmMinimum mass of elementary increment1031500 g200 g50 gNOTE 1 The masses of the elementary increments relate to a bulk density greater t

48、han 1 g/cm3. For lower bulk densities, the mass of the elementary increment can be determined by multiplying the numerical value in Table 1 by the bulk density of the material.NOTE 2 Special agreements should be made in the case of very lumpy products. In the case of pre-ground or pre-homogenized ma

49、terial, the minimum mass of the elementary increment can be determined, not from the grain size of the coarsest aggregate, but from the maximum size of the grains of the material before aggregating.NOTE 3 The actual elementary increment masses should depend on the sampling equipment and the tests to be performed. This is the case for monolithic products if the physico-mechanical properties of test pieces taken from these products are to be determined.b) Determine the mass of the elementary increment in accordance with ISO 8656-1, tak