DIN ISO 18400-201:2015-01

Part 201 of the ISO 18400-series specifies methods for the pretreatment of samples that can be applied 'in the field' directly after sampling. Pretreatment methods in this standard are limited to: - sample division methods aimed at reducing the size/volume of the sample; - the production of composite samples; - the selection of a specific fraction of the sampled material. This draft standard does not apply to biological and microbiological pretreatment. It does further not apply to soil materials sampled for the content of volatile components. These soil materials should be sampled according to ISO 22155. This draft standard does not give instructions for particle size reduction; guidance should be sought in ISO 11464, ISO 14507 and ISO 23909.