1、 STD-BSI BS EN 772-3-ENGL I998 Lb24bb9 074325b 551 BRITISH STANDARD Methods of test for masonry units - Part 3: Determination of net volume and percentage of voids of clay masonry units by hydrostatic weighing The European Standard EN 7723: 1998 has the status of a British Standard ICs 91.100.20 BS
2、EN 772-3: 1998 4 II m 9 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHI LAW STD-BSI BS EN 772-3-ENGL 1998 Lb24bbS 0743257 490 = zd. No. BS EN 7723:1998 _ DZ Text affected This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil
3、 Engineering, was published under the authority of the Standards Committee and comes into effect on 15 December 1998 National foreword This British Standard is the English language version of EN 7723: 1998. It is included in a package of standards declared by CEN/rC 125 and is intended that it will
4、partially supersede BS 3921:1985 Specifkution for clay bricks which will be withdrawn on 30 September 2000 if all the European Standards included in the package are available. The UK participation in its preparation was entrusted by Technical Committee B/519, Masonry and associated testing, to Subco
5、mmittee B/519/1, Masonry units, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible European committee any enquiries on the - monitor related international and European developments and promulgate interpretation, or proposals for change, and keep the
6、 UK interests informed 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 Ca
7、talogue under the section entitled ”International Standards Correspondence Index”, or by using the “Find” facdity 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
8、 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. Amendments issued since publicati
9、on O BSI 1998 ISBN O 580 30695 X STD-BSI BS EN 772-3-ENGL 1998 Lb24bb9 0743258 327 IpI EUROPEAN SImm EN 7723 NORNE EUROPENNE EUROP- NORM August 1!398 ICs 91.100.20 Descriptors: conszuction, masonry units, clay, tests, determination, volume, voids, percentage of voids, weight measurements English ver
10、sion Methods of test for masonry units - Part 3 Determination of net volume and percentage of voids of clay masomy units by hych-ostatic weighuig Mthodes dessai des lments de maonnerie - Parie 3: Dtmmuh on du volume net et du pourcentage des vides des lments de monnerie en terre cuite par pese hydms
11、tatique. prufverfahren fur Mauersteine - Teil 3 Bestimmung des Nettovolmens und des prozentualen Lochanteils von Mauerziegeln mitkls hydrostatkher Wgung (nterwasserwagung ). This European Standard was approved by CEN on 2 July 1998. CEN members are bound to comply with the CENKENELEC Internal Regula
12、tions which stipuiate the conditions for giving this European Standard the status of a national standard without any alteration. Uptodate lis c) the date of testing; d) the type, origin and designation of the masonry unit by reference to prEN 771-1; e) the number of specimens in sample; f) the net v
13、olume of each specimen and the mean vdue to the nearest 104 mm3; g) the percentage of voids of each specimen and the mean value, if required, to the nearest 1 %, h) remarks, if any O BSI 1998 BS EN 772-3: 1998 BSI 389 Chiswick Hi&. Road London w4 4AL STD.BS1 BS EN 772-3-ENGL 1998 D LbZqbb9 07432b2 8
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