1. Scope
This standard gives general guidance for the application of gas chromatography, using packed or capillary columns, to determine the qualitative and quantitative composition of a mixture of fatty acid methyl esters obtained in accordance with the method specified in GB/T 17376.
The method is not applicable to polymerized fatty acids.
2. Normative Reference
The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrigendum), or revisions of, any of these publications do not apply. However, all parties coming to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards. For undated references, the latest edition of the normative document referred to applies.
GB/T 17376 Animal and Vegetable Fats and Oils - Preparation of Methyl Esters of Fatty Acids (ISO 5509:2000, IDT)
3. Reagents
3.1 Carrier gas
Inert gas (nitrogen, helium, argon, hydrogen, etc.), thoroughly dried and with an oxygen content of less than 10 mg/kg.
Foreword I
1. Scope 1
2. Normative Reference 1
3. Reagents 1
4. Apparatus 2
5. Procedure 4
6. Expression of Results 6
7. Special Case - Use of Thermal Conductivity Detector 9
8. Test Report 9
