Testing Services: Feedstocks

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Method	Test	Test Details	Volume	Price ($US)
Ca 5a-40	Free Fatty Acids	Ca 5a-40 / Free Fatty Acids The AOCS Ca 5a-40 method measures free fatty acid content in vegetable and marine oils, as well as animal fats. This test is most appropriate for feedstock sources for renewable fuels.	25 mL	$53.00
D 482	Ash	D 482 / Ash The D482 Ash method determines the non-combustible material in a fuel such as metallic deposits. Significant ash content can cause engine deposits and excessive engine wear. The D482 method is appropriate for diesel and diesel blends (B6 to B20); the D874 Sulfated Ash method is appropriate for biodiesel.	100 mL	$55.00
D 5453	Sulfur	D 5453 / Sulfur The D5453 Sulfur method measures the total sulfur content by UV fluorescence. This test is suitable for most liquid hydrocarbons and some solids (i.e. fats and feedstock materials) if they can be dissolved in toluene. This method is not suitable for glycerin.	20 mL	$56.00
D 7716m	Methanol Content	D 7716m / Methanol Content The D7716m Methanol in Glycerin method determines the amount of methanol in crude glycerin. The method is slightly modified with a more robust calibration curve that will capture the higher methanol content typically found in crude glycerin samples.	5 mL	$62.00
D 6304	KF Moisture (Coulometric)	D 6304 / KF Moisture (Coulometric) The D6304 Coulometric KF Moisture method measures the level of moisture entrained in a fuel sample by Karl Fischer titration. This test is very sensitive and can detect water in the low ppm (parts per million) range. For ethanol and ethanol blends, or samples expected to contain higher amounts of water, the E203 Volumetric KF Moisture method is more appropriate.	5 mL	$46.00
EN 14538	Metals including Calcium, Magnesium, Sodium & Potassium includes Phosphorus (D 4951)	EN 14538 / Metals including Calcium, Magnesium, Sodium & Potassium The EN 14538 Metals analysis uses ICP-OES to measure calcium, magnesium, sodium and potassium in biodiesel. This analysis is offered as a package and includes D4951 Phosphorus. This test is intended for biodiesel, but any hydrocarbon fat or oil can be analyzed as long as it can be dissolved in kerosene. Other elements can be assayed as well- check for availability.	30 mL	$150.00
EN 14538	Metals by request excluding the Metals Package (Calcium, Magnesium, Sodium & Potassium)	EN 14538 / Metals by request excluding the Metals Package (Calcium, Magnesium, Sodium & Potassium) The EN 14538 Metals analysis uses ICP-OES. This test is intended for biodiesel, but any hydrocarbon fat or oil can be analyzed as long as it can be dissolved in kerosene. Additional $25 flat fee applies for any metals requested outside of a metals test package (covers all metals beyond the first five in the package).	Call to confirm	$25.00

*Our goal is to provide results for standard samples within 72 hours of receipt of sample, and RUSH service within 24 hours for most tests. Turnaround time goals reflect normal business hours of 8am-4pm Monday through Friday, excluding weekends and observed holidays. RUSH service is available at 2X normal price. For RUSH service, please contact us ahead of time to reduce any delays.

**Prices are valid 09/01/25 - 06/30/26

***Testing prices performed by an outsource laboratory are subject to change without notice.