This European Standard specifies an instrumental method for the routine determination of pH in a suspension of soil improvers or growing media.This method is not applicable to liming materials and preformed materials such as mineral wool slabs and foam slabs. NOTE The requirements of the standard may differ from the national legal requirements for the declaration of the products concerned.
EN 13037:2011 history
2011EN 13037:2011 Soil improvers and growing media - Determination of pH
1999EN 13037:1999 Soil Improvers and Growing Media - Determination of pH