DIN EN ISO 1927-2-2013 Monolithic (unshaped) refractory products - Part 2 Sampling for testing (ISO 1927-2 2012) German version EN ISO 1927-2 2012《整体(粗制)耐火材料产品 第2部分 试验取样(ISO 1927-2.pdf

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1、March 2013 Translation by DIN-Sprachendienst.English price group 10No 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!$rT“1957949www.din.deDDIN EN ISO 1927-2Monolithic (unshaped) refractory products Part 2: Sampling for testing (ISO 1927-2:2012);English version EN ISO 1927-2:2012,English translation of DIN EN ISO 1927-2:2013-03Ungeformte (monolithische) feuerfeste Erzeugnisse Teil 2: Probenahme (ISO 1927-2:2

3、012);Englische Fassung EN ISO 1927-2:2012,Englische bersetzung von DIN EN ISO 1927-2:2013-03Produits rfractaires monolithiques (non faonns) Partie 2: chantillonnage (ISO 1927-2:2012);Version anglaise EN ISO 1927-2:2012,Traduction anglaise de DIN EN ISO 1927-2:2013-03SupersedesDIN EN 1402-2:2004-01ww

4、w.beuth.deDocument comprises 16 pagesIn case of doubt, the German-language original shall be considered authoritative.02.13DIN EN ISO 1927-2:2013-03 2 A comma is used as the decimal marker. National foreword ISO 1927-2 has been prepared by Technical Committee ISO/TC 33 “Refractories” and has been ta

5、ken over as EN ISO 1927-2 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), Working Committee NA 062-02-57 A

6、A Ungeformte, dichte geformte und wrmedmmende feuerfeste Erzeugnisse und Werkstoffe. DIN 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 Part 3: Characterization as re

7、ceived 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 Amendments This standard differs from DIN EN 1402-2:2004-01 as fol

8、lows: a) the content of EN ISO 1927-2 (based on EN 1402-2) has been adopted in full; b) symbols have been updated; c) the Bibliography has been deleted. Previous editions DIN 51061-2: 1978-04 DIN EN V 1402-2: 1997-09 DIN EN 1402-2: 2004-01 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 192

9、7-2 December 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 Erzeugni

10、sse - Teil 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 alterati

11、on. 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 in three official versions (English, French, German). A version in any other language made by

12、 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 standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

13、Finland, 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 STANDARDI

14、ZATION 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 for CEN national Members. Ref. No. EN ISO 1927-2:2012: EContents PageForeword .1 Scope 2 Norma

15、tive references .3 Terms and definitions .4 Sampling scheme 4.1 General principles .4.2 Procurement of the batch sample .4.3 Size reduction of the increments 4.4 Test-piece increment achievement .5 Marking, package, storage of increments 5.1 Marking .5.2 Package 5.3 Storage .6 Sampling report .Annex

16、 A (informative) Example of sampling .DIN EN ISO 1927-2:2013-03 EN ISO 1927-2:2012 (E) 2344455689101010101112Foreword 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 mat

17、erials” the secretariat of which is held by BSI. 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 June 2013, and conflicting national standards shall be withdrawn at the latest by June 2013. Attent

18、ion is drawn to the possibility that some of the elements of this document may be the subject of patent rights. 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 Regulatio

19、ns, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,

20、 Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, 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. DIN EN ISO 1

21、927-2:2013-03 EN ISO 1927-2:2012 (E) 3 1 ScopeThis part of ISO 1927 gives guidance on the sampling of monolithic (unshaped) refractory 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 mat

22、erials formulated as monolithic refractory materials.NOTE The term “monolithic” is the preferred term, whereas “unshaped” is commonly 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 refer

23、enced 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 (including any amendments) applies.ISO 5022, Shaped refractory products Sampling and acceptance testingI

24、SO 8656-1, Refractory products Sampling of raw materials and unshaped products Part 1: Sampling schemeISO 10725, Acceptance sampling plans and procedures for the inspection of bulk materials3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1batchqu

25、antity of material from which a sample is to be achieved for testing to determine the quality of the materialNOTE A batch consists of material characterized as being of the same type, composition, grading and which, as far as practical, has been manufactured under the same conditions.3.2consignmentq

26、uantity of material supplied at one timeNOTE A consignment may consist of one or more batches or parts of batches.3.3unit packagepackaged 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

27、 (injection material, refractory grout)NOTE A pallet is not a unit package.3.4incrementquantity of material taken at one time from a larger quantityDIN EN ISO 1927-2:2013-03 EN ISO 1927-2:2012 (E) 43.4.1elementary incrementquantity of material taken at one time from a unit packageNOTE This operation

28、 repeated a number of times will constitute a package increment after mixing.3.4.2package incrementincrement that 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 i

29、ncrements which are necessary to form the package increment are defined in accordance with ISO 8656-1.3.4.3laboratory 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

30、out several physical tests EXAMPLE Castable test bars for cold modulus of rupture testing.3.5sampleone or more 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

31、representative of the batchNOTE The number of package increments which are to form the batch sample should be 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 sam

32、e as the number of package increments.3.5.3test-piece sampleset of test-piece incrementsNOTE The number of test 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 adop

33、tion of a particular sampling scheme be agreed by the principal parties and that a detailed sampling plan be documented 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 c

34、onstitution and description of the total material to be sampled;b) the identification of batches and quantities which make up the total material;DIN EN ISO 1927-2:2013-03 EN ISO 1927-2:2012 (E) 5 c) the type of packaging and mass content for each type of material;d) the parties responsible for sampl

35、ing and testing who may be third parties;e) the location, timing and method of sampling;f) the 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

36、for deciding batch quality.4.1.2 In all cases during sampling, increment division, preparation 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 experien

37、ce on sampling. The sampler shall be approved either by the interested parties or by the appropriate 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 la

38、rge batch should be subdivided into smaller batches. This may be undertaken to avoid the possibility 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

39、 being made, the sample shall be achieved by the same method that the producer uses to obtain 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

40、 should be treated in separate partial quantities.4.1.7 The sampling framework is presented 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 condition

41、s, etc.).Identify the unit package. The average mass (m) of this unit package shall be known.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 s

42、haped pieces, weigh less than 35 kg.Randomly, select this number of the unit packages from the 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 dete

43、rmine the mass and the number of elementary increments which are necessary to obtain the package 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

44、size of the material in order to avoid systematic errors during sampling (see Table 1).DIN EN ISO 1927-2:2013-03 EN ISO 1927-2:2012 (E) 6Table 1 Minimum mass of elementary increment depending on the maximum grain sizeMaximum grain sizemmMinimum mass of elementary increment1031500 g200 g50 gNOTE 1 Th

45、e masses of the elementary increments relate to a bulk density greater than 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

46、 of very lumpy products. In the case of pre-ground or pre-homogenized material, 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 i

47、ncrement 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

48、8656-1, taking into account the minimum quantities required for the tests which are to be performed.c) Classify the test batch in a quality variation class because the number of increments taken for testing from a batch shall be determined taking into account the deviations in the properties of the

49、material.The mean value and the standard deviation of a given property and type of monolithic product, designated respectively by null and , define the coefficient of variation CV= 100 /null of this property, expressed in practice as a percentage.The values of the coefficient of variation are divided into three classes: 0 CV 5 %, small variation, class 1; 5 % CV 15 %, medium variati