Total acid number (TAN) according to ASTM D664
Determination of total acid number in pyrolysis oil, petroleum products, lubricants, oils, and related liquid samples according to ASTM D664. The sample is dissolved in a toluene/isopropyl alcohol solvent mixture, and acidic constituents are titrated potentiometrically with alcoholic base to the inflection point. Results are reported in mg KOH/g.
The method requires the sample to be acidic or neutral and readily soluble in the solvent mixture. For samples better suited to alternative techniques, ISO 660 or EN 12634 can also be selected.
One common application of TAN testing (together with other relevant parameters such as halogen content) is assessing pyrolysis oil quality and suitability for downstream processing, as high acidity can cause corrosion and limit storage stability.
The displayed price applies to small sample sets. Larger batches and recurring orders are typically eligible for volume discounts.
- Suitable sample matrices
- Petroleum products (including used oils), pyrolysis oil
- Required sample quantity
- 20 g/ml
- Typical turnaround time
- 3 weeks after receiving the samples
- Detection limit
- Down to 0.05 mg KOH/g (depends on sample and acidic species in the sample)
- Available quality systems
- Accredited testing laboratory
- Standard
- Method expert
Price
We also charge a 97 € service fee per order.
Large batches of samples are eligible for discounts.
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