scope:

This part of ISO 24253 specifies a method for field measurements to determine the quantity and distribution of spray in a field crop, treated by horizontal boom sprayers with downward directed application. This standard can be used for nursery trees and small size bush crops (young currants) when sprayed with boom sprayers. NOTE When interested in the spray deposition over width of the crop canopy it is advised to use ISO 22522[3]. This part of ISO 24253 allows flexibility in the arrangement of field tests, but specifies standardized measurement procedures that are useful to be able to compare the results from different field experiments or to compare with laboratory tests, such as that specified in ISO 5682-2[1]. This part of the standard may not be appropriate for those spraying systems which rely on the presence of a crop canopy for efficient deposition (for example directed spraying, electrostatic charged spraying, very fine spraying, variable rate spraying). This standard is not intended for use in or for a regulatory framework.