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ASTM D664-18e2
Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration- 발행일 : 2018-11-01
- 발행기관 : ASTM
상세정보
| 분야 | 05.01 : 석유제품 및 윤활유 (Ⅰ) |
|---|---|
| 적용범위 | 1.1 This test method covers procedures for the determination of acidic constituents in petroleum products, lubricants, biodiesel, and blends of biodiesel. 1.1.1 Test Method A—For petroleum products and lubricants soluble or nearly soluble in mixtures of toluene and propan-2-ol. It is applicable for the determination of acids whose dissociation constants in water are larger than 10–9; extremely weak acids whose dissociation constants are smaller than 10–9 do not interfere. Salts react if their hydrolysis constants are larger than 10–9. The range of acid numbers included in the precision statement is 0.1 mg/g KOH to 150 mg/g KOH. 1.1.2 Test Method B—Developed specifically for biodiesel and biodiesel blends with low acidity and slightly different solubility. This test method requires the use of an automatic titrator with automatic endpoint-seeking capability. Note 1: In new and used oils, the constituents that may be considered to have acidic characteristics include organic and inorganic acids, esters, phenolic compounds, lactones, resins, salts of heavy metals, salts of ammonia and other weak bases, acid salts of polybasic acids, and addition agents such as inhibitors and detergents. 1.2 The test method may be used to indicate relative changes that occur in oil during use under oxidizing conditions regardless of the color or other properties of the resulting oil. Although the titration is made under definite equilibrium conditions, the test method is not intended to measure an absolute acidic property that can be used to predict performance of oil under service conditions. No general relationship between bearing corrosion and acid number is known. Note 2: The acid number obtained by this standard may or may not be numerically the same as that obtained in accordance with Test Methods D974 and D3339. There has not been any attempt to correlate this method with other non-titration methods. Note 3: A few laboratories have made the observation that there is a difference in Test Method D664 results when aqueous versus nonaqueous buffers are used. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement 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. |
| 국제분류(ICS)코드 | |
| 페이지수 | 11 |
| Edition | 18e2 |
이력정보
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ASTM D664-24상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2024-05-01 | 표준 |
| 2 | ASTM D664-24 REDLINE상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2024-05-01 | 표준 |
| 3 | ASTM D664-18상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2018-11-01 | 구판 |
| 4 | ASTM D664-18e1상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2018-11-01 | 구판 |
| 5 | ASTM D664-18e2상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2018-11-01 | 표준 |
| 6 | ASTM D664-17a상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2017-12-15 | 구판 |
| 7 | ASTM D664-17상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2017-10-01 | 구판 |
| 8 | ASTM D664-11a(2017)상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2017-05-01 | 구판 |
| 9 | ASTM D664-11ae1상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2011-07-15 | 구판 |
| 10 | ASTM D664-11a상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2011-07-15 | 구판 |
| 11 | ASTM D664-11상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2011-05-15 | 구판 |
| 12 | ASTM D664-09a상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2009-12-15 | 구판 |
| 13 | ASTM D664-09상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2009-03-01 | 구판 |
| 14 | ASTM D664-07상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2007-07-01 | 구판 |
| 15 | ASTM D664-06ae1상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2006-11-01 | 구판 |
| 16 | ASTM D664-06a상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2006-11-01 | 구판 |
| 17 | ASTM D664-06상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2006-01-01 | 구판 |
| 18 | ASTM D664-04e1상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2004-02-01 | 구판 |
| 19 | ASTM D664-04상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2004-02-01 | 구판 |
| 20 | ASTM D664-01상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2001-11-10 | 구판 |
| 21 | ASTM D664-95(2001)e1상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2001-11-10 | 구판 |
| 22 | ASTM D664-95상세보기 | Standard Test Method for Acid Number of Petroleum Products by Potentiometric Titration | 2001-11-10 | 구판 |
관련상품
- 관련상품이 존재하지 않습니다.
다른 사람이 함께 구입한 상품
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