2007DIN EN 1015-9:2007-05 Methods of test for mortar for masonry - Part 9: Determination of workable life and correction time of fresh mortar; German version EN 1015-9:1999+A1:2006
2007DIN EN 1015-9:2007 Methods of test for mortar for masonry - Part 9: Determination of workable life and correction time of fresh mortar (includes Amendment A1:2066) English version of DIN EN 1015-9:2007-05