Tiêu chuẩn quốc tế

• Số hiệu / Standard Number: ASTM D3712-05(2017)
• Năm ban hành / Publication date: 2017
• Tình trạng / Status: W - Hết hiệu lực
• Tên tiếng Anh / Title in English: Standard Test Method of Analysis of Oil-Soluble Petroleum Sulfonates by Liquid Chromatography
• Chỉ số phân loại Quốc tế (ICS) / By field: 75.080 - Sản phẩm dầu mỏ nói chung
• Số trang / Page: 6
• Phạm vi áp dụng / Scope of standard: 1.1 This test method covers the analysis of refined and crude natural and synthetic oil-soluble sulfonate products. Resins, if present, are recovered with the oil phase and carboxylates are recovered as sulfonates. 1.2 This test method covers the determination of mineral oil, sodium sulfonate, inorganic salts, water, basicity or acidity, average molecular weight, and relative density of sodium sulfonate products. 1.3 This test method covers the determination of mineral oil, sulfonate, water, base number, average molecular weight, and relative density of calcium, barium, magnesium, and ammonium sulfonate products. 1.4 The values stated in SI units are to be regarded as the standard. 1.4.1 Exception-The values given in parentheses are for information only. 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 and health 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.