Tiêu chuẩn quốc tế
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Số hiệu
Standard Number
ASTM E202-18
Năm ban hành 2018
Publication date
Tình trạng
A - Còn hiệu lực
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Tên tiếng Anh
Title in English Standard Test Methods for Analysis of Ethylene Glycols and Propylene Glycols
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Chỉ số phân loại Quốc tế (ICS)
By field |
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Số trang
Page 14
Giá:
Price Liên hệ / Contact us
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Phạm vi áp dụng
Scope of standard 1.1 These test methods cover the chemical and physical analysis of the commonly available grades of ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, and dipropylene glycol. The key sections appear in the following order: Sections Purity of Reagents 4 Specific Gravity 6 - 8 Distillation Range 10 - 12 Acidity 14 - 16 Water 18 - 20 Iron 22 - 24 Color 26 - 28 Gas Chromatographic Analysis 30 - 32 Alternative Test Methods Appendix X1 1.2 Review the current appropriate Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 1.3 In determining the conformance of the test results using this method to applicable specifications, results shall be rounded off in accordance with the rounding-off method of Practice E29. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard with the exception of foot-pound for apparatus descriptions. 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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