Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM D1442-06(2019)
Năm ban hành 2019
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English Standard Test Method for Maturity of Cotton Fibers (Sodium Hydroxide Swelling and Polarized Light Procedures)
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 6
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This 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.
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