ÖNORM EN 13040

This European Standard specifies a routine method for preparing a sample of a soil improver or a growing media prior to chemical analysis and physical testing. The procedures described herein apply only to those samples that are supplied to the laboratory in the form in which they will be used for their intended purpose. NOTE 1 The method is not applicable to liming materials or sewage sludges and is not suitable for materials like rockwool and foam slabs. NOTE 2 The determination of the laboratory compacted bulk density is given in Annex A. NOTE 3 The results of an interlaboratory trial to determine moisture content are given in Annex B. NOTE 4 The results of an interlaboratory trial to determine compacted laboratory bulk density are given in Annex B. NOTE 5 The requirements of the standard may differ from the national legal requirements for the declaration of the products concerned.