International Organization for Standardization (ISO)
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ISO 5502:1992
Scope
The principle of the method is grinding of the laboratory sample, with or without preliminary breaking, crushing, grinding or drying, division of the sample by suitable means, taking care that the test sample thus obtained, from which the test portion(s) will be taken, truly represents the totality of the laboratory sample.
ISO 5502:1992 history
1992ISO 5502:1992 Oilseed residues; preparation of test samples
1983ISO 5502:1983 Oilseed residues — Preparation of test samples