International Organization for Standardization (ISO)
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ISO 8634:1991
Scope
Specifies a method for sampling a delivery of more than 250 t of fertilizer and, after analysis of the sample(s), presents rules for assessing the quality. Annex A forms an integral part of this standard. Annex B is for information only.
ISO 8634:1991 history
1991ISO 8634:1991 Solid fertilizers; sampling plan for the evaluation of a large delivery