This document specifies a reference method for the determination of milk fat purity using gas chromatographic analysis of triglycerides. The method utilizes the differences in triglyceride fingerprint of milk fat from the individual triglyceride fingerprints of other fats and oils to determine samples which are outside the range normally observed for milk fat. This is achieved by using the defined triglyceride formulae based on the normalized weighted sum of individual triglyceride peaks which are sensitive to the integrity of the milk^[6][7]. The integrity of the milk fat can be determined by comparing the result of these formulae with those previously observed for a range of pure milk fat samples^[12]. Both vegetable fats and animal fats such as beef tallow and lard can be detected.

Cross References:
ISO 1211
ISO 1740
ISO 3696
ISO 7328
ISO 2450
ISO 1736
ISO 14156
ISO 5725-2
ISO 5725-1
ISO 707
ISO 835
BS 410 (all parts)
ISO 3310 (all parts)


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