2002LST EN 1015-9-2002 Methods of test for mortar for masonry - Part 9: Determination of workable life and correction time of fresh mortar
0000 LST 1413.7-1997
LST EN 1015-9-2002 Methods of test for mortar for masonry - Part 9: Determination of workable life and correction time of fresh mortar was changed to LST EN 1859-2009+A1-2013 Chimneys - Metal chimneys - Test methods.