ASTM D 3025 : 2007 : R2021

1.1This practice covers the use of reference standard cottons for the standardization of instruments and techniques used to test cotton fibers in various laboratories.

1.2Standardization may be achieved by application of a correction factor based on the reference standards, or by modification of the technique in use.

1.3This practice recognizes two types of reference standards: (1) calibration cotton standards (see 6.1) and (2) working cotton standards (see 6.2).

1.4The instructions included in this practice can be used with cotton fibers in any form suitable for testing with the particular instrument to be used.

1.5The instructions in the practice are applicable to cotton fibers but can also be applied to specific blends of cotton and other fibers, or to other fibers that can be tested with the instruments designed for testing cotton fibers. No information is available, however, to show that test procedures standardized with reference cotton samples are equally reliable with various cotton fiber blends or with other fibers.

1.6This 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.