is the Standard Test Method for Fill Power of Down Feathers. "Fill power" is a measure of the loft or "fluffiness" of down that is directly related to the insulating value of the product. Higher fill power means the down traps more air, providing better insulation with less weight.
The ASTM D6307 ignition method revolutionized asphalt testing by replacing toxic chemical extractions with a safer, faster, and highly accurate thermal process. For any asphalt plant, independent testing facility, or civil engineering lab, mastering this standard is essential for ensuring infrastructure quality. Investing in an official, up-to-date copy of the guarantees that your laboratory procedures align with industry benchmarks, leading to safer roads and reliably executed construction projects.
This method is widely preferred over older solvent-extraction methods (like ASTM D2172) because it is faster, more environmentally friendly (no hazardous solvents), and highly accurate when properly calibrated. astm d6307 pdf
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: Method A requires an internal balance accurate to . Sample Capacity : Accommodates sample sizes up to or more, depending on the aggregate's nominal maximum size. Benefits & Applications
Owning the is only the first step. Proper implementation requires: the corrected asphalt content
Specially designed stainless steel mesh baskets that allow air to circulate freely around the sample while retaining the aggregate particles.
Too little asphalt binder results in a brittle pavement prone to cracking, raveling, and water damage. Too much binder leads to rutting, shoving, and bleeding under heavy traffic loads.
The test utilizes a —a clear acrylic cylinder marked with gradations. A weighing plunger (a disc of a specific weight) is used to compress the sample.
The corrected asphalt content value is the result that is reported for each sample. A complete report should include the sample identification, the corrected asphalt content, and the specific test method used.