1、BRITISH STANDARD Insulating refractory products - Part 2: Classification of shaped products (IS0 22451990 modified) BS EN 1094-2: 1999 The European Standard EN 10942 1998 has the status of a British Standard ICs 81.080 NO COPYING WITHOUT ES1 PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW - - _ STD-
2、BSI BS EN LOSi-Z-ENGL 1777 II Lb2YbbS 0753b3b 298 W BS EN 109421999 been prepared under the direction of the Sector AmdNo. Committee for Materiais and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 February 1999 ! 0 BSI 02-1999 I 1 National forewo
3、rd Date Text affected This British Standard is the English language version of EN 1094-2 1998. It supersedes BS 7225-1.1:1989 which is withdrawn. The K participation in its preparation was entrusted by Technid Commitke RPI/l, Refractory products and materials, to Subcommittee RPW1, Sampling and phys
4、icai testing of refractory materiah, 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
5、 developments and promulgate them in the UK. A list of organbations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement intrnational or European publications referred to in this document may be found in the BSI Standard
6、s Caialogue under the section entitled “International Standards Correspondence Index“, or by using the “Fnd“ facility of the BSI Standads Elech-onic Caaiogue. A British Standard does not purport to include ali the necessary provisions of a contracL Users of British Staaidards are responsible for the
7、ir correct application. 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. ISBN O 680 32129 O STD-BSI BS E
8、N LOSLl-2-ENGL 1797 E Lb2Llbb7 753b37 124 D EUROPEAN STANDARD EN 10942 Nom EUROPENNE EXJROP- NORM October 1998 ICs 81.080 Descriptors: refractory materiais, shaped refractories, shaped insulating refractory products, classifications, dimensional stabiliw, designation English version remry products-
9、Paxt 2: classification of sm products (IS0 22fi1990 modifed) Produits l. b) the bulk densi, rounded to two decimal places, determined in accordance with EN 10944, to distinguish Class L products from those with the same grouping according to a) but with a higher porosity (see Table 2). For the deter
10、mination of bulk density, the test pieces should be large enough for the desired accuracy to be med. As opposed to EN 10944, the ciimensions shall be measured to within a,l mm using - an indication of its bulk density; - the fact that it belongs to Class L (where applicable). Example 1: Shaped insul
11、ating product according to EN 1094-2, group to which it belongs (125), bulk density (O$). Example 2: Shaped insulaimg product according to EN 10942, group to which it belongs (140), bulk density (42). Exumpe 3: Shaped insulating product according to EN 10942, group to which it belongs (85), bulk den
12、sity (0,55) and, if applicable, the fact that it belongs to Class L. Example 4: Shaped insulating product according to EN 10942, group to which it belongs (140), bulk density (0,80) and, if applicable, the fact that it belongs to Class L. EN 10942 - 125 - 0,8 EN 10942 - 140 - 42 EN 10942 - 85 - 0,55
13、 - L EN 10942 - 140 - 0,80 - L Table 1 - Classification bu temDerature Group 75 80 85 90 95 100 105 110 115 120 125 130 135 140 150 160 170 180 Temperature at which the test of permanent change in dimensions is carried out, “C 750 800 850 900 950 1000 1050 1100 1150 1200 1250 1300 1350 1400 1500 160
14、0 1700 1800 NOTE-The temperatures given as iimits for the groups according to the permanent change in dimensions of the products are not necessarily the limits of temperature of use, as the behaviour of products in service depends not oniy on the temperature, but also on the conditions of use. O BSI
15、 02-1999 STD.BSI BS EN 1094-2-ENGL 1999 lb24bb9 0753b40 719 E Page 4 EN 1094-21998 Table 2 - Classincation by bulk density Group 75 80 85 90 95 100 105 110 115 120 125 130 135 140 150 160 170 180 Upper limits of average bulk density) of Class L products, ern3 2, 0,40 0,50 0,55 0760 0,65 0,65 0,65 0,
16、70 0,70 0,70 0,75 0,80 0,5 0,90 0,95 1,15 1,35 1,60 in each group of Class L, the bulk density is considered oniy as a distinguishing property and is given to two decimal places. 2) 1 g/cm3 = i03 kgmi3 O BSI 02-1999 BS EN 1094-2:1999 BSI 389 Chiswick High Road London w4 4AL STD.BS1 BS EN 109q-Z-ENGL
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