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  • ASTM
    D1576-13 Standard Test Method for Moisture in Wool by Oven-Drying
    Edition: 2013
    $91.10
    Unlimited Users per year

Description of ASTM-D1576 2013

ASTM D1576 - 13

Standard Test Method for Moisture in Wool by Oven-Drying

Active Standard ASTM D1576 | Developed by Subcommittee: D13.13

Book of Standards Volume: 07.01




ASTM D1576

Significance and Use

5.1 Test Method D2462 for the determination of the moisture in wool by distillation with toluene is the preferred method for testing wool for moisture for the acceptance testing of commercial shipments. If, however, the purchaser and the supplier agree, Test Method D1576 for the determination of the moisture in wool by oven drying may be used instead. Comparative tests as directed in 5.1.1 , may be advisable.

5.1.1 In case of a dispute arising from differences in reported test results when using Test Method D1576 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 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 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 is a simple and convenient method for routine process control, in-plant evaluation, estimation of moisture content of a lot of wool, or any other purpose for which a high degree of reproducibility is not necessary (see Section 13 ).

1. Scope

1.1 This test method covers the determination of the amount of moisture present in ordinary commercial and industrial samples of wool in all forms except grease wool, using the oven-drying technique.

1.2 Formulas for calculating the moisture content (as-received basis) and moisture regain (oven-dried basis) are given. It is always important to use the correct term which corresponds to the basis used in the calculation (see 12.2.1 ).

Note 1 The determination of moisture content for textile materials in general is covered in Test Methods D2654 , and an optimal method for determining the moisture in wool by distillation with toluene is covered in Test Method D2462 . A method for sampling wool for the determination of moisture in wool is covered in Practice D2525 . The oven-drying method has been adapted for cotton in Test Method D2495 .

1.3 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.


2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D123 Terminology Relating to Textiles

D1060 Practice for Core Sampling of Raw Wool in Packages for Determination of Percentage of Clean Wool Fiber Present

D1776 Practice for Conditioning and Testing Textiles

D2258 Practice for Sampling Yarn for Testing

D2462 Test Method for Moisture in Wool by Distillation With Toluene

D2495 Test Method for Moisture in Cotton by Oven-Drying

D2525 Practice for Sampling Wool for Moisture

D2654 Test Method for Moisture in Textiles

D3333 Practice for Sampling Manufactured Staple Fibers, Sliver, or Tow for Testing


Keywords

moisture content and wool ;


ICS Code

ICS Number Code 59.060.10 (Natural fibres)


DOI: 10.1520/D1576

ASTM International is a member of CrossRef.

ASTM D1576

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ASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide.
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