ASTM D1442-93
Standard Test Method for Maturity of Cotton Fibers (Sodium Hydroxide Swelling and Polarized Light Procedures)

Standard No.

ASTM D1442-93

Release Date

1993

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D1442-00

Latest

ASTM D1442-06(2019)

Scope

1.1 This test method covers the determination of the percentage of mature fibers in a sample of loose, chemically untreated cotton fibers, whether taken before processing or unravelled from a textile product.

1.2 This test method gives two optional procedures for determining maturity, as follows:

1.2.1 Procedure 1--Sodium Hydroxide Swelling.

1.2.2 Procedure 2--Polarized Light.

Note 1--For other test methods for the determination of maturity of cotton fibers refer to Test Methods D1464 and D2480.

1.3 The values stated in SI units are to be regarded as standard. No other units of measure are included in this standard.

1.4 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 D1442-93 history

• 2019 ASTM D1442-06(2019) Standard Test Method for Maturity of Cotton Fibers (Sodium Hydroxide Swelling and Polarized Light Procedures)
• 2012 ASTM D1442-06(2012) Standard Test Method for Maturity of Cotton Fibers (Sodium Hydroxide Swelling and Polarized Light Procedures)
• 2006 ASTM D1442-06 Standard Test Method for Maturity of Cotton Fibers (Sodium Hydroxide Swelling and Polarized Light Procedures)
• 2000 ASTM D1442-00 Standard Test Method for Maturity of Cotton Fibers (Sodium Hydroxide Swelling and Polarized Light Procedures)
• 1993 ASTM D1442-93 Standard Test Method for Maturity of Cotton Fibers (Sodium Hydroxide Swelling and Polarized Light Procedures)