ASTM D629-15
Standard Test Methods for Quantitative Analysis of Textiles

Standard No.

ASTM D629-15

Release Date

2015

Published By

American Society for Testing and Materials (ASTM)

Latest

ASTM D629-15

Scope

5.1 Qualitative and quantitative fiber identification is actively pursued by committee RA24 (Fiber Identification) of AATCC and presented in AATCC Test Methods 20 and 20A. Since precision and bias development is also part of the AATCC test methods, both AATCC and ASTM D13 have agreed that new development will take place in RA24. However, because there is valuable information still present in the ASTM standards, D13.51 has agreed Test MethodsD276 and D629 will be maintained as active standards by ASTM.

5.2 Test Methods D629 for the determination of quantitative analysis of textiles may be used for acceptance testing of commercial shipments but caution is advised since information on between-laboratory precision is lacking. Comparative tests as directed in 5.2.1 or in Standard Tables D1909 may be advisable.

5.2.1 In case of a dispute arising from differences in reported test results using Test Methods D629 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 which are as homogeneous as possible and which are from a lot of material of the type in question. The test specimen 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 and an acceptable probability level chosen by the two parties before the testing began. If a bias is found, either its cause must be found and corrected or the purchaser and supplier must agree to interpret future test results in the light of the known bias.

5.3 The effects of the various reagents used in the chemical methods on the residual fibers in a blend depend upon the history of the fibers and, unless otherwise stated, are generally too small or too uncertain to warrant the application of correction factors.

5.4 Fiber composition is generally expressed either on the oven-dry mass of the original sample or the oven-dry mass of the clean fiber after the removal of nonfibrous materials. If nonfibrous materials are not first removed from the textile before the fiber analysis is carried out, or if the treatments described in Section 8 are incapable of removing them, any such materials present will increase the percentage of the fiber constituent with which they are removed during the analysis, assuming they are soluble in the solvent used.

5.5 The analytical methods are intended primarily for the separation of binary mixtures of fibers. These procedures may also be used for the analysis of mixtures containing more than two types of fibers by selecting the best combination of methods to use (Table 1). Since a sequence of solvents on a given fiber may produce different results than the expected results from a single solvent, it......

ASTM D629-15 Referenced Document

• ASTM D1113 Standard Test Method for Vegetable Matter and Other Alkali-Insoluble Impurities in Scoured Wool
• ASTM D1193 Standard Specification for Reagent Water
• 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 D1909 Standard Table of Commercial Moisture Regains for Textile Fibers
• ASTM D2130 Standard Test Method for Diameter of Wool and Other Animal Fibers by Microprojection
• ASTM D2462 Standard Test Method for Moisture in Wool by Distillation With Toluene
• ASTM D2494 Standard Test Method for Commercial Mass of a Shipment of Yarn or Man-Made Staple Fiber or Tow
• ASTM D2495 Standard Test Method for Moisture in Cotton by Oven-Drying
• ASTM D2654 Standard Test Methods for Moisture in Textiles
• ASTM D276 Standard Test Methods for Identification of Fibers in Textiles
• ASTM D461 Standard practice for lining inspection during flue gas desulfurization system operations
• ASTM D4920 Standard Terminology Relating to Moisture in Textiles
• ASTM D584 Standard Test Method for Wool Content of Raw Wool-Laboratory Scale
• ASTM D885 Standard Test Methods for Tire Cords, Tire Cord Fabrics, and Industrial Filament Yarns Made from Man-Made Organic-Base Fibers

ASTM D629-15 history

• 2015 ASTM D629-15 Standard Test Methods for Quantitative Analysis of Textiles
• 2008 ASTM D629-08 Standard Test Methods for Quantitative Analysis of Textiles
• 1999 ASTM D629-99 Standard Test Methods for Quantitative Analysis of Textiles
• 1988 ASTM D629-88 Standard Test Methods for Quantitative Analysis of Textiles