The standard describesThe reference procedure. If other methods are used it shall be shown thatThey give results equivalent to those obtained byThe reference method. In case of a dispute, onlyThe reference method shall be used.
EN 451-2:1994 history
2017EN 451-2:2017 Method of testing f ly ash - Part 2: Determination of fineness by wet sieving
1994EN 451-2:1994 Method of Testing Fly Ash - Part 2: Determination of Fineness by Wet Sieving