The test requires specific, calibrated equipment to ensure accuracy:

"Correction Factor determined per Annex A1: 0.31%. Raw calculated asphalt content was 5.92%, but true asphalt content is 5.61%."

Look for the line. Modern furnaces weigh the sample continuously. The report should show that the scale reading didn't change more than 0.01% in the final 3 minutes. If it kept dropping, the test was stopped too early (unburned carbon left), and the result is artificially high.

The standard procedure, as outlined in ASTM D6307, follows these general steps:

ASTM D6307 is particularly vital in the context of . As the industry moves toward greener alternatives, engineers use this test to: