This part of GB/T 5535 specifies the method for three extractions of hexane to determine the content of unsaponifiable matter in animal and vegetable oils and fats. This section applies to all greases and does not apply to waxes. Warning: Compared with the method in GB/T 5535.1, the determination result of this method is lower.
GB/T 5535.2-2008 Referenced Document
GB/T 15687 Animal and vegetable fats and oils-Preparation of test sample*, 2008-11-04 Update
GB/T 5535.2-2008 history
2008GB/T 5535.2-2008 Animal and vegetable fats and oils.Determination of unsaponifiable matter.Part 2:Method using hexane extraction
1998GB/T 5535.2-1998 Animal and vegetable fats and oils--Determination of unsaponifiable matter--Part 2: Rapid method using hexane extraction