ASTM D1574-04(2013)
Standard Test Method for Extractable Matter in Wool and Other Animal Fibers

Standard No.

ASTM D1574-04(2013)

Release Date

2004

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D1574-22

Latest

ASTM D1574-22

Scope

5.1 Test Method D1574 is considered satisfactory for acceptance testing since the method has been used extensively in the trade for acceptance testing.

5.1.1 In case of a dispute arising from differences in reported test results when using Test Method D1574 for acceptance testing of commercial shipments, the purchaser and the supplier should conduct comparative tests to determine if there is a statistical bias between their laboratories. Competent statistical assistance is recommended for the investigation of bias. As a minimum, the two parties should take a group of test specimens that are as homogeneous as possible and that are from a lot of material of the type in question. The test specimens should then be randomly assigned in equal numbers to each laboratory for testing. The average results from the two laboratories should be compared using Student's t-test for unpaired data and an acceptable probability level chosen by the two parties before the testing is begun. If a bias is found, either its cause must be found and corrected or the purchaser and the supplier must agree to interpret future test results in the light of the known bias.

5.2 This test method may be used to estimate the quantity of oil, grease, and waxy materials remaining on or in wool fibers after scouring, or the quantity of lubricant added before carding or remaining after carding, or the quantity of such materials added or removed in subsequent processing operations.

5.3 The residues obtained in this test may be subjected to chemical analysis for identification and assay of the component materials, if desired.

5.4 The specified solvent in this test method does not remove some materials, such as soaps, that may be present in wool and hence in some cases may reflect more closely the added content of some extractables in wool such as oils. When such materials are present and an estimate of their quantity is desired, some other solvent or combination of solvents should be used as specified in a material specification or by agreement. The information in the Annex of this test method may be useful for this purpose. Various solvents have been used in the past, and are still used to some extent. Many of these solvents are undesirable, however, because of flammability, toxic or anesthetic effects, or unpleasant odors. Trichlorotrifluoroethane is nonflammable, has a very low level of toxicity, and a high degree of stability and is a good solvent for most fatty or mineral oils, greases, and waxes. The specified solvent, under conditions of the test, was found in interlaboratory test not to extract wool protein.

Note 2—Since the specified solvent is primarily a solvent for oils rather than soap, the extractable matter obtained in this procedure may be considered a measure of commercial oil content.

Note 3—Due to the hazardous nature of some of the solvents listed in Table A1.1, the user should refer to the manufacturer's recommendations for use before using under the conditions of this test method.

1.1 This ......

ASTM D1574-04(2013) Referenced Document

• ASTM D123 Standard Terminology Relating to Textiles
• ASTM D1334 Standard Test Method for Wool Content of Raw Wool-Commercial Scale
• ASTM D1576 Standard Test Method for Moisture in Wool by Oven-Drying
• ASTM D2257 Standard Test Method for Extractable Matter in Textiles
• ASTM D2462 Standard Test Method for Moisture in Wool by Distillation With Toluene
• ASTM D461 Standard practice for lining inspection during flue gas desulfurization system operations
• ASTM D4845 Standard Terminology Relating to Wool
• ASTM D584 Standard Test Method for Wool Content of Raw Wool-Laboratory Scale

ASTM D1574-04(2013) history

• 2022 ASTM D1574-22 Standard Test Method for Extractable Matter in Wool and Other Animal Fibers
• 2004 ASTM D1574-04(2013) Standard Test Method for Extractable Matter in Wool and Other Animal Fibers
• 2004 ASTM D1574-04(2008) Standard Test Method for Extractable Matter in Wool and Other Animal Fibers
• 2004 ASTM D1574-04 Standard Test Method for Extractable Matter in Wool and Other Animal Fibers
• 1987 ASTM D1574-87(1995) Standard Test Method for Extractable Matter in Wool and Other Animal Fibers