1.1 ,This test method provides a measurement of the commercial mass of a shipment of yarn or manufactured staple fiber or tow. This test method applies to (1) yarn of all fiber types except silk, glass, asbestos, and bast, (2) tops and slivers of all fiber types except wool, silk, glass, asbestos, and bast, and (3) manufactured fibers or tow, except glass and other fibers used for special purposes such as flock (Note 1).