GB/T 37517-2019: Animal and vegetable fats and oils - Determination of solid fat content by pulsed NMR - Indirect method

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Scope

This Standard specifies an indirect method for the determination of the solid fat content
in animal and vegetable fats and oils (hereafter designated “fats”) using low-resolution
pulsed nuclear magnetic resonance (NMR) spectrometry.
Two alternative thermal pre-treatments are specified in this Standard: one for general
purpose fats not exhibiting pronounced polymorphism and which stabilize mainly in
the β′-polymorph; and one for fats similar to cocoa butter which exhibit pronounced
polymorphism and stabilize in the β-polymorph. Additional thermal pre-treatments,
which may be more suitable for specific purposes, are given in Annex C.
The indirect method is less easy to carry out and less repeatable than the direct method,
but is more accurate and more universally applicable to all fats.
Note: A direct method is specified in ISO 8292-1.

Basic Data

Standard ID	GB/T 37517-2019 (GB/T37517-2019)
Description (Translated English)	Animal and vegetable fats and oils - Determination of solid fat content by pulsed NMR - Indirect method
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	X04
Classification of International Standard	67.040
Word Count Estimation	18,122
Date of Issue	2019-05-10
Date of Implementation	2019-12-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration