GOST 31663-2012 PDF

Full title and description

GOST 31663-2012 — Vegetable oils and animal fats. Determination of methyl esters of fatty acids by gas chromatography method. (Russian: ГОСТ 31663-2012 — Масла растительные и жиры животные. Определение методом газовой хроматографии массовой доли метиловых эфиров жирных кислот).

Abstract

This interstate standard specifies a gas‑chromatographic method for the determination of the mass fraction (composition) of fatty acid methyl esters (FAMEs) obtained from vegetable oils and animal fats. It covers sample preparation (methylation), chromatographic conditions and calculation/reporting of fatty‑acid composition for quality control, labeling and research purposes.

General information

• Status: Current / active (interstate standard).
• Publication date: Standard number year 2012; introduced (date of application) 1 January 2014 (entry into force).
• Publisher: Interstate standard registered/issued under the national standards system (available through standards publishers/distributors and Rosstandart databases).
• ICS / categories: 67.200.10 (analysis of fats and oils).
• Edition / version: Edition 2012 (GOST 31663-2012).
• Number of pages: 12 pages (PDF/text editions distributed by standards vendors).

Scope

The standard applies to vegetable oils and animal fats and describes the procedure for converting fatty acids to their methyl esters (FAME) and determining the composition and relative mass fractions of those methyl esters by capillary gas chromatography. It is intended for routine laboratory determinations of fatty‑acid profiles used in quality control, compositional analysis and regulatory compliance.

Key topics and requirements

• Preparation of samples and formation of fatty acid methyl esters (methylation/derivatization) suitable for GC analysis.
• Gas‑chromatographic separation parameters (capillary columns, temperature programs) and detector considerations for FAME analysis.
• Identification and quantification approach — typically via retention times against standards and calculation by internal normalization or use of internal standards where specified.
• Reporting of results as mass fractions (composition) of individual FAMEs in the oil/fat sample.
• Precision, repeatability and references to related analytical methods and prior national standards (method alignment with established FAME/GC practice).

Typical use and users

Analytical and quality‑control laboratories in the food, feed and oilseed industries; dairy and margarine producers; research laboratories studying lipid composition (nutrition, breeding, product development); regulatory and conformity assessment bodies verifying fatty‑acid composition and labelling. The method is frequently cited in academic and applied research for fatty‑acid profiling of food fats and oils.

Related standards

Related and referenced documents typically include national and international FAME/GC methods such as GOST R ISO 5508 / ISO 5508 (gas‑chromatographic method for FAME), ISO/EN standards for FAME analysis and earlier national standards (for example, GOST R 51483‑99 which was replaced/withdrawn when this standard was introduced). The standard fits into the suite of methods for oils and fats analysis (acid value, peroxide value, phosphorous determination and others).

Keywords

GOST 31663-2012; fatty acid methyl esters; FAME; gas chromatography; vegetable oils; animal fats; methylation; fatty‑acid composition; capillary GC; oil analysis; Rosstandart; interstate standard.

FAQ

Q: What is this standard?

A: An interstate (GOST) standard that defines a gas‑chromatographic procedure for determining the mass fractions of fatty acid methyl esters in vegetable oils and animal fats (FAME analysis).

Q: What does it cover?

A: Sample preparation (methylation), GC separation conditions, identification and calculation approaches for reporting the fatty‑acid profile as methyl ester mass fractions; applicable to routine laboratory testing of oils and fats.

Q: Who typically uses it?

A: Food and feed industry QC labs, oilseed processors, dairy and margarine manufacturers, academic and research laboratories, and regulatory testing bodies.

Q: Is it current or superseded?

A: The standard is the 2012 edition and is listed as active/current in standards databases; its date of application/entry into force is shown as 1 January 2014. Users should check national registries or official Rosstandart/EASC listings for any later revisions or replacements before regulatory use.

Q: Is it part of a series?

A: It belongs to the family of standards for fats and oils (methods for determination of composition and quality parameters). It references and aligns with earlier national methods and international FAME/GC practice (ISO methods referenced in the analytical field).

Q: What are the key keywords?

A: Fatty acid methyl esters (FAME); gas chromatography; methylation; vegetable oils; animal fats; fatty‑acid profile; capillary column; analytical method.