This International Standard specifies methods for the preparation of test samples and test portions from laboratory samples of solid fertilizer for subsequent Chemical or physical analysis. lt does not cover the preparation of samples for certain physical tests which require test portions of more than 2 kg. This International Standard is applicable to all solid fertilizers.
GSO ISO 8358:2013 history
2013GSO ISO 8358:2013 The method of Preparation of samples for Chemical and physical analysis of solid fertilizers