Internal Standards

ASTM D6584 and DIN EN 14105 both specify the use of two internal standards, butanetriol and tricaprin. Both of these internal standards are added to every B100 biodiesel sample prior to analysis. They are used to compensate for run-to-run injection variations through comparison to the internal standard retention times and levels in the calibration standards.

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CRM44896 ASTM® D6584 1,2,4-Butanetriol Solution certified reference material, 1000 μg/mL in pyridine, ampule of 5 mL
44897-U ASTM® D6584 Tricaprin Solution 8000 μg/mL in pyridine, analytical standard Green Alternative
CRM44897 ASTM® D6584 Tricaprin Solution certified reference material, 8000 μg/mL in pyridine