Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM D7409-15(2020)
Năm ban hành 2020
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English Standard Test Method for Carboxyl End Group Content of Polyethylene Terephthalate (PET) Yarns
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 3
Giá:
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Phạm vi áp dụng
Scope of standard 1.1''This test procedure is based significantly on the GRI GG7 test procedure, Carboxyl End Group Content of Polyethylene Terephthalate (PET) Yarns. 1.2'' This test method is used to determine the concentration, in mmol/kg, of carboxyl end groups (CEG) found in poly(ethylene terephthalate) (PET) yarns by titration. 1.3''This test is applicable to geogrid yarns that are made from PET resin. Note 1:''This test is also applicable to high-strength geotextile yarns that are made from PET and are used in reinforcement applications. 1.4''The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5''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. 1.6''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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