International Organization for Standardization (ISO)
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ISO 9289:1991
Scope
Specifies a method for the determination of hexane content after extraction with hydrocarbon-based solvents. Describes the principle, the reagents and materials, the apparatus, the sampling, the test procedure, the expression of results, and the contents of the test report.
ISO 9289:1991 history
1991ISO 9289:1991 Oilseed residues; determination of free residual hexane