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ÖNORM EN 772-9:2005-05

Действует
Methods of test for masonry units - Part 9: Determination of volume and percentage of voids and net volume of clay and calcium silicate masonry units by sand filling (consolidated version)
This European Standard specifies a method of determining the volume and percentage of voids and net
volume of clay and calcium silicate masonry units containing cells, frogs and holes.
Diese Europäische Norm legt ein Verfahren zur Bestimmung des Lochvolumens von Mauerziegeln und
Kalksandsteinen mit Kammern, Vertiefungen und Löchern fest.
ICS
91.100.15 Mineral. Including earth, sands, clay, slates, stones, etc. / Минеральные материалы и изделия. Включая землю, песок, глину, шифер, камень, кирпич и т.д.