BS EN 17057 specifies a method to determine the saturated monoglyceride content in Fatty Acid Methyl Esters (FAME). This method only identifies and quantifies the following saturated monoglycerides: 1-C16:0, 2-C16:0 and 1-C18:0.
The total saturated monoglyceride content is calculated by the summation of the contents of these three saturated monoglycerides. The precision has been established for FAMEs having saturated monoglycerides in the (200 to 1 500) mg/kg range.
Note 1: This method is not suitable for FAME produced from or containing coconut and palm kernel oil derivatives because of overlapping of various peaks.
Note 2: BS EN 17057 determines only three saturated monoglycerides, i.e. 1-C16:0, 2-C16:0 and 1-C18:0. FAMEs can contain also other saturated monoglycerides such as 1-C17:0, but these are generally much lower than the three targeted saturated monoglycerides and are therefore not included in the Standard's scope.
BS EN 17057- Determination of saturated monoglycerides content in (FAME) is useful for:
In renewable biodiesel fuel, monoglycerides are a reaction residue. They are the least soluble and have the highest melting point of the glyceridic forms. As a result, when using biodiesel neat or in blend with diesel in the field, monoglycerides can cause problems with cold stability of the fuel and filter plugging.
Method by GC-FID as specified in BS EN 17057 guides you on the problem of quantitatively evaluating the monoglycerides content in biodiesel.
By using BS EN 17057 a low noise GC path is obtained which facilitates the identification and the quantification of peaks.
BS EN 17057 enables you to determine of saturated monoglycerides content in (FAME) with precision and accuracy even at low concentration levels.
EN 17057:2018