Methods of test for masonry units - Determination of flatness of faces of masonry units
Methods of test for masonry units - Determination of flatness of faces of masonry units
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What is BS EN 772-20 - Determination of flatness of faces of masonry units about?
BS EN 772-20 is the 20 th part of the multiple series that is applicable to methods of testing for masonry units. BS EN 772-20 specifies a method for determining the flatness of surfaces of masonry units." Note: The method of sampling shall be stated in the test report. The minimum number of specimens shall be six except in the case of the determination of flatness of bed face where it shall be three, but a larger minimum number may be specified in the product specification, in which case that larger number shall be used.
Who is BS EN 772-20 -
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