This means that if the same sample is tested twice in the same lab, results should differ by no more than about 0.17%; for different labs, the difference should be no more than 0.44%.

: Involves a furnace without an internal balance. The operator must manually remove the sample at specific intervals to weigh it until a constant mass is achieved.

ASTM D6307 is the globally recognized standard for determining the asphalt content of paving mixtures using the , a faster and more environmentally friendly alternative to traditional solvent extraction . By heating asphalt samples in a specialized furnace, this method burns off the binder, allowing for the precise measurement of residual aggregate.

is the standard test method for determining the asphalt content of hot-mix asphalt (HMA) mixtures using the ignition method .