1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 1094-2:1999 The Eur
2、opean Standard EN 1094-2:1998 has the status of a British Standard ICS 81.080 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Insulating refractory products Part 2: Classification of shaped products (ISO 2245:1990 modified)BS EN 1094-2:1999 This British Standard, having been p
3、repared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 February 1999 BSI 02-1999 ISBN 0 580 32129 0 Amendments issued since publication Amd. No. Date Text affected National foreword Thi
4、s British Standard is the English language version of EN 1094-2:1998. It supersedes BS 7225-1.1:1989 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee RPI/1, Refractory products and materials, to Subcommittee RPI/1/1, Sampling and physical testing of re
5、fractory materials, which has the responsibility to: aid enquirers to understand the text; present to the responsible European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promu
6、lgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the
7、 section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applica
8、tion. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 4, an inside back cover and a back cover.CEN European Committee for Standardization Comite
9、Europe en de Normalisation Europa isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1094-2:1998 E EUROPEAN STANDARD EN 1094-2 NORME EUROPE ENNE
10、 EUROPA ISCHE NORM October 1998 ICS 81.080 Descriptors: refractory materials, shaped refractories, shaped insulating refractory products, classifications, dimensional stability, designation English version Insulating refractory products Part 2: Classification of shaped products (ISO 2245:1990 modifi
11、ed) Produits re fractaires isolants Partie 2: Classification des produits fac onne s (ISO 2245:1990 modifie e) Feuerfeste Erzeugnisse fu r Isolationszwecke Teil 2: Klassifierung geformter Erzeugnisse (ISO 2245:1990 modifiziert) This European Standard was approved by CEN on 1 October 1998. CEN member
12、s 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 bibliographical references concerning such national standards may be obtained on application
13、 to the Central Secretariat 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 responsibility of a CEN member into its own language and notified to the Central Secretariat has the sam
14、e status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.Page 2 EN 1094-2:1998 BSI
15、 02-1999 Foreword This European Standard has been prepared by 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 national standard, either by publication of an identical text or by endorsem
16、ent, at the latest by April 1999, and conflicting national standards shall be withdrawn at the latest by April 1999. It is closely based on the corresponding International Standard, ISO 2245, Shaped insulating refractory products Classification, published by the International Organization for Standa
17、rdization (ISO). EN 1094, Insulating refractory products, consists of seven Parts: Part 1, Terminology for ceramic fibre products. Part 2, Classification of shaped products (ISO 2245:1990, modified). Part 3, Classification of insulating products made from ceramic fibres (ENV). Part 4, Determination
18、of bulk density and true porosity. Part 5, Determination of cold crushing strength. Part 6, Determination of permanent change in dimensions of shaped products on heating (ISO 2477:1987, modified). Part 7, Methods of test for ceramic fibre products (ENV). Contents Page Foreword 2 1 Scope 3 2 Normativ
19、e references 3 3 Definition 3 4 Classification 3 5 Designation 3 Endorsement notice The text of the International Standard ISO 2245:1990 has been approved by CEN as a European Standard with the agreed common modifications, as given below. 1 Scope Change the first sentence to read: “This European Sta
20、ndard specifies a classification of shaped insulating refractory products, based on the determination of permanent change in dimensions on heating, with a secondary classification based on bulk density to cover lightweight products (Class L).” Delete the word “mainly” from the last sentence of the f
21、irst paragraph. Delete the second paragraph. 2 Normative references Replace ISO 5016:1986 by EN 1094-4. Replace ISO 2477:1987 by prEN 1094-6. Delete ISO 1109:1975. 3 Definition Replace ISO 5016 by EN 1094-4 in the second paragraph. Delete the word “shall” in the third paragraph and make the paragrap
22、h a note. Delete the fourth paragraph. 4 Classification Change first bullet point to point a), and replace ISO 2477:1987 by prEN 1094-6. Change second bullet point to point b), and change wording to read: “the bulk density, rounded to two decimal places, determined in accordance with EN 1094-4, to d
23、istinguish Class L products from those with the same grouping according to a) but with a higher porosity (see Table 2).”. Delete the second paragraph. Replace ISO 5016:1986 by EN 1094-4 in the third paragraph. 5 Designation Table 1, include the values: Group 8C 80 800 90 900 100 1000 115 1150 120 12
24、00 Table 2, include the values: Group g/cm 3 80 0,50 90 0,60 100 0,65 115 0,70 120 0,70 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland
25、, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom.Page 3 EN 1094-2:1998 BSI 02-1999 1 Scope This European Standard specifies a classification of shaped insulating refractory products, based on the determin
26、ation of permanent change in dimensions on heating, with a secondary classification based on bulk density to cover lightweight products (Class L). Products composed of ceramic fibres are excluded. 2 Normative references This European Standard incorporates by dated or undated reference, provisions fr
27、om 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 revisions of any of these publications apply to this European Standard only when incorporated in it by amendm
28、ent or revision. For undated references the latest edition of the publication referred to applies. EN 1094-4, Insulating refractory products Part 4: Determination of bulk density and true porosity. prEN 1094-6, Insulating refractory products Part 6: Determination of permanent change in dimensions of
29、 shaped products on heating (ISO 2477:1987 modified). 3 Definition For the purposes of this European Standard the following definition applies. shaped insulating refractory products products with a total porosity of at least 45 % (V/V) determined in accordance with EN 1094-4 NOTE This conventional d
30、efinition results from the fact that thermal insulating refractory products have a low thermal conductivity and a small thermal capacity, properties which are related to the total porosity of the product. 4 Classification Shaped insulating refractory products are subdivided into groups according to:
31、 a) the temperature at which the permanent change in dimensions, determined in accordance with prEN 1094-6, is 2 % or less (see Table 1); b) the bulk density, rounded to two decimal places, determined in accordance with EN 1094-4, to distinguish Class L products from those with the same grouping acc
32、ording to a) but with a higher porosity (see Table 2). For the determination of bulk density, the test pieces should be large enough for the desired accuracy to be attained. As opposed to EN 1094-4, the dimensions shall be measured to within 0,1 mm using callipers. 5 Designation A shaped insulating
33、product shall be designated by: the group to which it belongs; an indication of its bulk density; the fact that it belongs to Class L (where applicable). Example 1: Shaped insulating product according to EN 1094-2, group to which it belongs (125), bulk density (0,8). EN 1094-22 1252 0,8 Example 2: S
34、haped insulating product according to EN 1094-2, group to which it belongs (140), bulk density (1,2). EN 1094-22 1402 1,2 Example 3: Shaped insulating product according to EN 1094-2, group to which it belongs (85), bulk density (0,55) and, if applicable, the fact that it belongs to Class L. EN 1094-
35、22 852 0,55 L Example 4: Shaped insulating product according to EN 1094-2, group to which it belongs (140), bulk density (0,80) and, if applicable, the fact that it belongs to Class L. EN 1094-22 1402 0,802 L Table 1 Classification by temperature Group Temperature at which the test of permanent chan
36、ge in dimensions is carried out,8C 75 750 80 800 85 850 90 900 95 950 100 1000 105 1050 110 1100 115 1150 120 1200 125 1250 130 1300 135 1350 140 1400 150 1500 160 1600 170 1700 180 1800 NOTE The temperatures given as limits for the groups according to the permanent change in dimensions of the produ
37、cts are not necessarily the limits of temperature of use, as the behaviour of products in service depends not only on the temperature, but also on the conditions of use.Page 4 EN 1094-2:1998 BSI 02-1999 Table 2 Classification by bulk density Group Upper limits of average bulk density 1) of Class L p
38、roducts, g/cm 32) 75 0,40 80 0,50 85 0,55 90 0,60 95 0,65 100 0,65 105 0,65 110 0,70 115 0,70 120 0,70 125 0,75 130 0,80 135 0,85 140 0,90 150 0,95 160 1,15 170 1,35 180 1,60 1) In each group of Class L, the bulk density is considered only as a distinguishing property and is given to two decimal pla
39、ces. 2) 1 g/cm 3 =1 0 3 kg/m 3blankBSI 389 Chiswick High Road London W4 4AL | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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