This European Standard describes the procedure for the determination of free calcium oxide content in fly ash. The standard describes the reference procedure. If other methods are used it shall be shown that they give results equivalent to those obtained by the reference method.
DIN EN 451-1:2004 history
2017DIN EN 451-1:2017-08 Method of testing fly ash - Part 1: Determination of free calcium oxide content; German version EN 451-1:2017
2017DIN EN 451-1:2017 Method of testing fly ash - Part 1: Determination of free calcium oxide content
1970DIN EN 451-1 E:2015-07 Method of testing fly ash - Part 1: Determination of free calcium oxide content
2015DIN EN 451-1 E:2015 Draft Document - Method of testing fly ash - Part 1: Determination of free calcium oxide content; German and English version prEN 451-1:2015
2004DIN EN 451-1:2004 Method of testing fly ash - Part 1: Determination of free calcium oxide content; German version EN 451-1:2003
1970DIN EN 451-1:1995 Method of testing fly ash - Part 1: Determination of free calcium oxide content