Historical
ASTM D1577-96
Standard Test Methods for Linear Density of Textile Fibers
These test methods cover the measurement of mass per unit length (linear density) of textile fibers and filaments. Direct weighing and vibroscope procedures with modifications for crimped and uncrimped fibers are included. 1.2 These test methods are properly applicable only when the fibers are readily freed of crimp and are not tapered, but useful data can be obtained on man-made fibers, and, with less precision, on cotton and wool. Note 1-For linear density of short lengths of yarn, refer to Test Method D1059. For cotton linear density, refer to Test Methods D1769, and Test Method D2480. For measurement of wool diameter, refer to Test Method D1282, Test Method D2130 and Test Method D3510. 1.3 These test methods measure the linear density of fibers with a moisture regain in equilibrium with the standard atmosphere for testing. The regain in the fibers when tested is not necessarily the same as the commercial regain. 1.4 The preferred method of measuring linear density is the direct weighing method. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM International [astm]