本文件规定了一种快速提取油和制备脂肪酸甲酯的方法。由此得到的甲酯可用于气相色谱分析。 本文件适用于以下油料种子:芥酸含量低（<；2%）、向日葵、大豆、亚麻籽的油菜和芥末。 注:将这种快速方法应用于高芥酸含量的油菜会导致芥酸含量高估约1%的质量分数。参考文献[6]中观察到了这种差异，这可能是由于从样品中部分提取了油（产率约70%）。由于碳长链（C22）的亲脂性作用，甘油三酯中高含量的芥酸可以增加其在己烷中的溶解度。然而，由于没有在大量高芥酸油菜样品上检查这种影响，因此在分析高芥酸油菜时，不适合对芥酸含量应用校正系数。

This document specifies a rapid method for extraction of oil and for preparation of the methyl esters of fatty acids. The methyl esters thus obtained can be used for gas chromatography. This document is applicable to the following oilseeds: rape and mustard with low erucic acid content (< 2 %), sunflower, soya beans, linseed. NOTE Applying this rapid method to high erucic acid content rapeseed leads to an overestimation of erucic acid content by approximately a mass fraction of 1 %. This difference was observed in Reference [6] and could be due to the partial extraction of the oil from the sample (yield around 70 %). High content of erucic acid in triglycerides could increase their solubility in hexane because of the lipophilic effect of the carbon long-chain (C22). However, as this effect was not checked on a large set of high erucic rapeseed samples, it is not appropriate to apply a correction factor to the erucic acid content when analysing high erucic acid rapeseed.