(CMA)
(CNAS)
(ISO)
(高新技术企业)
酸值的测定方法相关标准参考信息
GB/T 41633.3-2022 绝缘液体 酸值的测定 第3部分：非矿物绝缘油的试验方法
简介：
信息：ICS：29.040.10 CCS：K15 发布：2022-11-08 实施：2023-06-01
ASTM D3339-12(2017) 通过半微量颜色指示剂滴定测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2017-05-01 实施：
ASTM D664-11ae1 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2011-07-15 实施：
GB/T 38265.3-2022 软钎剂试验方法 第3部分：酸值的测定 电位滴定法和目视滴定法
简介：
信息：ICS：25.160.50 CCS：J33 发布：2022-10-12 实施：2022-10-12
ASTM D664-11a(2017) 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2017-05-01 实施：
ASTM D5770-11 氧化试验中润滑油酸值半定量微量测定的标准试验方法
简介：
信息：ICS：75.100 CCS： 发布：2011-05-15 实施：
GB/T 30921.5-2016 工业用精对苯二甲酸(PTA)试验方法 第5部分:酸值的测定
简介：
信息：ICS： CCS： 发布：2016-06-14 实施：2017-01-01
ASTM D5559-95(2017) 用于测定磺酸和硫酸化油中铵或三乙醇胺皂的游离脂肪酸/酸值的酸度的标准测试方法
简介：
信息：ICS：71.080.40 CCS： 发布：2017-04-01 实施：
ASTM D3339-11 通过半微量颜色指示剂滴定测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2011-05-15 实施：
GB/T 14235.6-1993 熔模铸造模料 酸值测定方法
简介：本标准规定了熔模铸造模料酸值的测定方法。 本标准适用于测定各种熔模铸造模料的酸值。
信息：ICS：77.180 CCS：J31 发布：1993-03-04 实施：1993-12-01
ASTM D8045-2017 采用催化热滴定法测定原油和石油产品酸值的标准试验方法
简介：5.1x00a0;Crude oils and oil sands bitumen contain naturally occurring acidic species. Acidity of crude oil has been implicated in corrosion of distribution and process systems. The relative amount of these materials can be determined by titrating with bases. The acid number is a measure of this amount of acidic substance in the oil under the conditions of the test. 5.2x00a0;Acid number of crude and distilled petroleum fractions has been measured by Test Method D664. Test Method D664 was developed for the analysis of lubricants and biodiesel. The titration solvent used in Test Method D664 does not properly address dissolving difficult samples such as crude oil, bitumen, and high wax samples addressed in this test method. Refer to Appendix X1. 5.3x00a0;Test Method D974 is also not applicable to measuring acidity of crudes and highly colored samples because the indicator is not visible or it is difficult to discern a color change to detect the end point of the titration. 1.1x00a0;This test method covers the determination of acidic components in crude oil and petroleum products including waxes, bitumen, base stocks, and asphalts that are soluble in mixtures of xylenes and propan-2-ol. It is applicable for the determination of acids whose dissociation constants in water are larger than 10x2013;9; extremely weak acids whose dissociation constants are smaller than 10x2013;9 do not interfere. The values obtained by this test method may not be numerically equivalent to other acid value measurements. The range of KOH acid numbers included in the precision statement is 0.18201;mg/g to 168201;mg/g. 1.2x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3x00a0;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. Some specific hazards statements are given in Section 7 on Safety Precautions. 1.4x00a0;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.
信息：ICS：75.040 ; 75.080 CCS：E20 发布：2017 实施：
ASTM D664-11 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2011-05-15 实施：
GB/T 12008.5-1989 聚醚多元醇中酸值测定方法
简介：本标准规定了用酸碱滴定法测定聚醚多元醇中酸值的方法。 本标准适用于由多元醇与环氧乙烷、环氧丙烷在催化剂作用下开环聚合制得的聚氨酯泡沫塑料用聚醚多元醇中酸值的测定。
信息：ICS：83.080 CCS：G31 发布：1989-12-25 实施：1990-11-01
KS C IEC 60811-603-2016 电缆和光缆 - 非金属材料的试验方法第603部分:物理试验 - 填充化合物总酸值的测定
简介：
信息：ICS： CCS： 发布：2016-12-28 实施：
ASTM D5562-95(2011) 在铵或三乙醇胺皂存在下测定游离脂肪酸/酸值的酸度的标准测试方法
简介：
信息：ICS：71.080.40 CCS： 发布：2011-01-01 实施：
GB 9104.3-1988 工业硬脂酸试验方法 酸值的测定
简介：本标准规定了工业硬脂酸酸值的测定方法。本标准适用于由动植物油脂经水解后用压榨法或蒸馏法精制生产的工业用硬脂酸酸值的测定。
信息：ICS： CCS： 发布：1988-04-30 实施：1988-10-01
ASTM D7253-16 聚氨酯原料的标准试验方法:测定聚醚多元醇酸值的酸度
简介：
信息：ICS：83.080.20 CCS： 发布：2016-09-01 实施：
ASTM D5559-95(2011) 用于测定磺酸和硫酸化油中铵或三乙醇胺皂的游离脂肪酸/酸值的酸度的标准测试方法
简介：
信息：ICS：71.080.40 CCS： 发布：2011-01-01 实施：
GB/T 9104.3-1988 工业硬脂酸试验方法 酸值的测定
简介：本标准规定了工业硬脂酸酸值的测定方法。 本标准适用于由动植物油脂经水解后用压榨法或蒸馏法精制生产的工业用硬脂酸酸值的测定。
信息：ICS：71.080.40 CCS：Y44 发布：1988-04-30 实施：1988-10-01
ASTM D8045-16e1 用催化测温滴定法测定原油和石油产品酸值的标准试验方法
简介：
信息：ICS：75.040 CCS： 发布：2016-07-01 实施：
ASTM D664-2011 电位滴定法测定石油产品酸值的标准试验方法
简介：New and used petroleum products, biodiesel and blends of biodiesel may contain acidic constituents that are present as additives or as degradation products formed during service, such as oxidation products. The relative amount of these materials can be determined by titrating with bases. The acid number is a measure of this amount of acidic substance in the oil, always under the conditions of the test. The acid number is used as a guide in the quality control of lubricating oil formulations. It is also sometimes used as a measure of lubricant degradation in service. Any condemning limits must be empirically established. Since a variety of oxidation products contribute to the acid number and the organic acids vary widely in corrosion properties, the test method cannot be used to predict corrosiveness of oil or biodiesel and blends under service conditions. No general correlation is known between acid number and the corrosive tendency of biodiesel and blends or oils toward metals.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 A8212;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 B8212;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 18212;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 28212;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 38212;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,......
信息：ICS：75.080 (Petroleum products in general) CCS：E30 发布：2011 实施：
GB/T 2564-1981 褐煤蜡酸值和皂化值测定方法
简介：本方法适用于测定褐煤蜡的酸值和皂化值。
信息：ICS：73.040 CCS：D22 发布：1981-04-08 实施：1981-10-01
ASTM D8045-16 用催化测温滴定法测定原油和石油产品酸值的标准试验方法
简介：
信息：ICS：75.040 CCS： 发布：2016-07-01 实施：
ASTM D5770-2011 氧化试验期间用半定量法微观测定润滑油酸值的标准试验方法
简介：This test method provides a semiquantitative estimate of the acid number of lubricating oils obtained from laboratory oxidation tests using smaller amounts of sample than Test Methods D 974, D 664, or D 3339. It has specific application in Test Method D 943 and in Test Method D 4871. This test method, therefore, provides a means of monitoring the relative oxidation of lubricating oils by measuring changes in acid number, at different time intervals and under various oxidizing test conditions. Since this test method is semiquantitative, each laboratory shall develop its own criteria for each oxidation test method for determining when to switch from this semiquantitative test method to a more precise test method for acid number.1.1 This test method is a semiquantitative micro method intended for monitoring the changes in acidic constituents occurring in lubricating oils during oxidation testing, when the acid number of such oils falls within the range from 0.02 to 1.0 mg of potassium hydroxide per gram of sample. It is applicable to such oils as turbine oils, hydraulic oils, and other circulating oils. Note 1 - This test method is a micro version of Test Method D 974 and it produces results similar to that method.1.2 This test method is designed for use where sample size is limited. It shall not be used as a replacement for higher precision methods such as Test Methods D 974 or D 664. It shall not be used to monitor oils in-service.1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.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.
信息：ICS：75.100 (Lubricants, industrial oils and related pr CCS：E34 发布：2011 实施：
KS B ISO 9455-3-2022 软钎焊剂.试验方法.第3部分:酸值的测定.电位滴定法和目视滴定法
简介：
信息：ICS：25.160.50 CCS： 发布：2022-11-14 实施：
ASTM D8031-16 通过自动电位滴定测定对苯二甲酸（TA）的酸值的标准测试方法
简介：
信息：ICS：71.080.40 CCS： 发布：2016-03-01 实施：
ASTM D664-2011a 用电位滴定法测定石油产品酸值的标准试验方法
简介：New and used petroleum products, biodiesel and blends of biodiesel may contain acidic constituents that are present as additives or as degradation products formed during service, such as oxidation products. The relative amount of these materials can be determined by titrating with bases. The acid number is a measure of this amount of acidic substance in the oil, always under the conditions of the test. The acid number is used as a guide in the quality control of lubricating oil formulations. It is also sometimes used as a measure of lubricant degradation in service. Any condemning limits must be empirically established. Since a variety of oxidation products contribute to the acid number and the organic acids vary widely in corrosion properties, the test method cannot be used to predict corrosiveness of oil or biodiesel and blends under service conditions. No general correlation is known between acid number and the corrosive tendency of biodiesel and blends or oils toward metals.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 A8212;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 B8212;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 18212;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 28212;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 38212;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,......
信息：ICS：75.080 (Petroleum products in general) CCS：E30 发布：2011 实施：
ASTM D7253-22 聚氨酯原材料的标准试验方法:聚醚多元醇酸值酸度的测定
简介：
信息：ICS：83.080.20 CCS： 发布：2022-03-15 实施：
ASTM D8031-2016 采用自动电位滴定法测定对苯二甲酸 (TA) 酸值的标准试验方法
简介：5.1x00a0;An estimate of TA purity can be determined by titrating with KOH. As an index of TA purity, the acid number can be used as a guide in the quality control of TA production. 1.1x00a0;This test method covers the determination of acid number in terephthalic acid (TA) by automatic potentiometric titration. As the index of TA purity, acid number is usually within 674 to 676 mg KOH/g. 1.2x00a0;In determining the conformance of the test results using this method, results shall be rounded off in accordance with the rounding-off method of Practice E29. 1.3x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4x00a0;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.
信息：ICS： CCS： 发布：2016 实施：
ASTM D3339-2011 半微量颜色指示剂滴定法测定石油产品酸值的标准试验方法
简介：This test method measures the acid number of oils obtained from laboratory oxidation tests using smaller amounts of sample than Test Methods D 974 or D 664. It has specific application in Test Method D 943 in which small aliquots of oil are periodically removed for testing by Test Method D 3339. This test method, therefore, provides a means of monitoring the relative oxidation of oils, by measuring changes in acid number, at different time intervals and under the various oxidizing test conditions. FIG. 1 Schematic Drawing of Typical Apparatus1.1 This test method covers the determination of acidic constituents in new or used petroleum products and lubricants soluble or nearly soluble in mixtures of toluene, and isopropyl alcohol. The test method is especially intended for cases in which the amount of sample available to be analyzed is too small to allow accurate analysis by Test Methods D 974 or D 664. It is applicable for the determination of acids having dissociation constants in water larger than 10x2212;9. Extremely weak acids having dissociation constants smaller than 10x2212;9 do not interfere. Salts titrate if their hydrolysis constants are larger than 10x2212;9. 1.2 This test method can be used to indicate relative changes in acid number that occur in an oil during use under oxidizing conditions. Although the titration is made under definite equilibrium conditions, the method does not measure an absolute acidic property that can be used to predict performance of an oil under service conditions. No general relationship between bearing corrosion and acid number is known. 1.3 Since this test method requires substantially less sample than Test Methods D 974 or D 664, it provides an advantageous means of monitoring an oxidation test by changes in acid number by (1) minimizing test sample depletion for acid number analyses and thus minimizing the disturbance of the test or (2) allowing additional acid number analyses to be made while maintaining the same test sample depletion and thus providing additional data. Note 18212;Some oils, such as many cutting oils, rust-proofing oils, and similar compounded oils, or excessively dark-colored oils, may be more difficult to analyze by this test method due to obscurity of the color-indicator end point. These oils can be analyzed by Test Method D 664 provided sufficient sample is available. However, this situation is much less likely using Test Method D 3339 than using Test Method D 974 due to the use of a more highly dilute sample during the titration and due to the greater stability of the end point color change. The acid numbers obtained by Test Method D 3339 may or may not be numerically the same as those obtained by Test Method D 664 but they should be of the same order of magnitude. Note 28212;The results obtained using this method have been found to be numerically the same as those obtained using Test Method D 974, within the precision of the two methods, for new or oxidized lubricants of the type primarily intended for hydraulic or steam turbine type service. The oxidized lubricants were obtained using the Test Method D 943 oxidation test. This correlation is shown by the correlation coefficient r
信息：ICS：75.080 (Petroleum products in general) CCS：E30 发布：2011 实施：
ASTM D3339-21 用半微量颜色指示剂滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2021-11-01 实施：
GOST 22304-2015 不饱和聚脂树脂. 酸值的测定方法
简介：
信息：ICS：83.080.10;87.060.20 CCS：G32 发布：2015 实施：2017-01-01
DB13/T 1233-2010 化工产品 酸度(酸值)和碱度测定方法
简介：本标准规定了用滴定分析法测定酸度（酸值）和碱度的通用方法。本标准适用于水溶性化工产品中酸、碱度的测定，非水溶性化工产品中可溶于水的酸、碱，在用水萃取后，也可用本法在水相中测定。还适用于用沸腾乙醇抽取试样中的酸性成分的测定。
信息：ICS：71.040.40 CCS：G15 发布：2010/05/25 实施：2010/05/25
ISO 9455-3-2019 软焊剂 - 测试方法 - 第3部分:酸值 电位和目测滴定法的测定
简介：
信息：ICS：25.160.50 CCS： 发布：2019-09-18 实施：
SAE ARP 5088B-2014 用自动电位滴定测定聚酯和二酯燃气涡轮润滑剂中总酸值的试验方法
简介：The test method describes the procedure for determination of the total acid number of new and degraded polyol ester and diester based gas turbine lubricants by potentiometric titration technique. The method was validated to cover an acidity range 0.05 to 6.0 mg KOH g-1. The method may also be suitable for the determination of acidities outside of this range and for other classes of lubricant.
信息：ICS：49.025.99;75.100 CCS：V13 发布：2014-07-08 实施：
ASTM D664-09a 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2009-12-15 实施：
ASTM D664-18e1 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2018-11-01 实施：
DB34/T 2087-2014 石油和石油产品酸值测定方法 电位滴定法
简介：本标准规定了石油和石油产品酸值的测定方法——电位滴定法。 本标准适用于测定水的质量分数小于 1％的石油和石油产品中的酸性组分，这些酸性组分在水中离解常数要大于 10-9。酸值的测定范围为 0.01 mgKOH/g～500 mgKOH/g。 本标准并未指出所有可能的安全问题。使用者有责任建立适当的安全与健康措施，保证符合国家有关法规的规定。
信息：ICS：75.080 CCS：E30 发布：2014-04-10 实施：2014-05-10
ASTM D664-09 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.040 CCS： 发布：2009-03-01 实施：
ASTM D664-18 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2018-11-01 实施：
ASTM D3339-12 通过半微量颜色指示剂滴定测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2012-04-15 实施：
ANSI/ASTM D664-2009 电位滴定法测定石油产品酸值的试验方法
简介：
信息：ICS：75.080 CCS：E30 发布：2009 实施：
ASTM D5562-95(2018) 在铵或三乙醇胺皂存在下测定游离脂肪酸/酸值的酸度的标准测试方法
简介：
信息：ICS：71.080.40 CCS： 发布：2018-09-01 实施：
IEC 60811-603:2012 电缆和光缆 - 非金属材料的试验方法第603部分:物理试验 - 填充化合物总酸值的测定
简介：
信息：ICS：29.060.20 CCS： 发布：2012-03-13 实施：
ASTM D664-2009a 电位滴定法测定石油产品酸值的标准试验方法
简介：New and used petroleum products, biodiesel and blends of biodiesel may contain acidic constituents that are present as additives or as degradation products formed during service, such as oxidation products. The relative amount of these materials can be determined by titrating with bases. The acid number is a measure of this amount of acidic substance in the oil, always under the conditions of the test. The acid number is used as a guide in the quality control of lubricating oil formulations. It is also sometimes used as a measure of lubricant degradation in service. Any condemning limits must be empirically established. Since a variety of oxidation products contribute to the acid number and the organic acids vary widely in corrosion properties, the test method cannot be used to predict corrosiveness of oil or biodiesel and blends under service conditions. No general correlation is known between acid number and the corrosive tendency of biodiesel and blends or oils toward metals.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 A8212;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 B8212;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 18212;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 28212;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 38212;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,......
信息：ICS：75.080 (Petroleum products in general) CCS：E30 发布：2009 实施：
ASTM D664-17a 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2017-12-15 实施：
ASTM D3339-2012 半微量颜色指示剂滴定法测定石油产品酸值的标准试验方法
简介：This test method measures the acid number of oils obtained from laboratory oxidation tests using smaller amounts of sample than Test Methods D974 or D664. It has specific application in Test Method D943 in which small aliquots of oil are periodically removed for testing by Test Method D3339. This test method, therefore, provides a means of monitoring the relative oxidation of oils, by measuring changes in acid number, at different time intervals and under the various oxidizing test conditions. FIG. 1 Schematic Drawing of Typical Apparatus1.1 This test method covers the determination of acidic constituents in new or used petroleum products and lubricants soluble or nearly soluble in mixtures of toluene, and isopropyl alcohol. The test method is especially intended for cases in which the amount of sample available to be analyzed is too small to allow accurate analysis by Test Methods D974 or D664. It is applicable for the determination of acids having dissociation constants in water larger than 10x2212;9. Extremely weak acids having dissociation constants smaller than 10x2212;9 do not interfere. Salts titrate if their hydrolysis constants are larger than 10x2212;9. 1.2 This test method can be used to indicate relative changes in acid number that occur in an oil during use under oxidizing conditions. Although the titration is made under definite equilibrium conditions, the method does not measure an absolute acidic property that can be used to predict performance of an oil under service conditions. No general relationship between bearing corrosion and acid number is known. 1.3 Since this test method requires substantially less sample than Test Methods D974 or D664, it provides an advantageous means of monitoring an oxidation test by changes in acid number by (1) minimizing test sample depletion for acid number analyses and thus minimizing the disturbance of the test or (2) allowing additional acid number analyses to be made while maintaining the same test sample depletion and thus providing additional data. Note 18212;Some oils, such as many cutting oils, rust-proofing oils, and similar compounded oils, or excessively dark-colored oils, may be more difficult to analyze by this test method due to obscurity of the color-indicator end point. These oils can be analyzed by Test Method D664 provided sufficient sample is available. However, this situation is much less likely using Test Method D3339 than using Test Method D974 due to the use of a more highly dilute sample during the titration and due to the greater stability of the end point color change. The acid numbers obtained by Test Method D3339 may or may not be numerically the same as those obtained by Test Method
信息：ICS：75.080 (Petroleum products in general) CCS：E30 发布：2012 实施：
ASTM D3339-08 通过半微量颜色指示剂滴定测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2008-07-01 实施：
ASTM D664-17 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2017-10-01 实施：
GOST 31933-2012 植物油.酸值测定方法
简介：
信息：ICS：67.200.10 CCS： 发布：2012 实施：2014-01-01
ASTM D3339-2008 半微量颜色指示剂滴定法测定石油产品酸值的标准试验方法
简介：This test method measures the acid number of oils obtained from laboratory oxidation tests using smaller amounts of sample than Test Methods D 974 or D 664. It has specific application in Test Method D 943 in which small aliquots of oil are periodically removed for testing by Test Method D 3339. This test method, therefore, provides a means of monitoring the relative oxidation of oils, by measuring changes in acid number, at different time intervals and under the various oxidizing test conditions. FIG. 1 Schematic Drawing of Typical Apparatus1.1 This test method covers the determination of acidic constituents in new or used petroleum products and lubricants soluble or nearly soluble in mixtures of toluene, and isopropyl alcohol. The test method is especially intended for cases in which the amount of sample available to be analyzed is too small to allow accurate analysis by Test Methods D 974 or D 664. It is applicable for the determination of acids having dissociation constants in water larger than 10x2212;9. Extremely weak acids having dissociation constants smaller than 10x2212;9 do not interfere. Salts titrate if their hydrolysis constants are larger than 10x2212;9. 1.2 This test method can be used to indicate relative changes in acid number that occur in an oil during use under oxidizing conditions. Although the titration is made under definite equilibrium conditions, the method does not measure an absolute acidic property that can be used to predict performance of an oil under service conditions. No general relationship between bearing corrosion and acid number is known. 1.3 Since this test method requires substantially less sample than Test Methods D 974 or D 664, it provides an advantageous means of monitoring an oxidation test by changes in acid number by (1) minimizing test sample depletion for acid number analyses and thus minimizing the disturbance of the test or (2) allowing additional acid number analyses to be made while maintaining the same test sample depletion and thus providing additional data. Note 18212;Some oils, such as many cutting oils, rust-proofing oils, and similar compounded oils, or excessively dark-colored oils, may be more difficult to analyze by this test method due to obscurity of the color-indicator end point. These oils can be analyzed by Test Method D 664 provided sufficient sample is available. However, this situation is much less likely using Test Method D 3339 than using Test Method D 974 due to the use of a more highly dilute sample during the titration and due to the greater stability of the end point color change. The acid numbers obtained by Test Method D 3339 may or may not be numerically the same as those obtained by Test Method D 664 but they should be of the same order of magnitude. Note 28212;The results obtained using this method have been found to be numerically the same as those obtained using Test Method D 974, within the precision of the two methods, for new or oxidized lubricants of the type primarily intended for hydraulic or steam turbine type service. The oxidized lubricants were obtained using the Test Method D 943 oxidation test. This correlation is shown by the correlation coefficient r
信息：ICS：75.080 (Petroleum products in general) CCS：E30 发布：2008 实施：
ASTM D8045-17e1 用催化测温滴定法测定原油和石油产品酸值的标准试验方法
简介：
信息：ICS：75.040 CCS： 发布：2017-07-01 实施：
GOST 31700-2012 谷物与谷物产品.脂肪酸值的测定方法
简介：
信息：ICS：67.060 CCS： 发布：2012 实施：2013-07-01
ASTM D4662-2008(2011)e1 聚氨酯原料的标准试验方法: 多元醇酸值和碱值的测定
简介：These test methods are suitable for quality control, as specification tests, and for research. The acid and alkalinity numbers indicate the extent of a reaction with acids. The results are measures of batch-to-batch uniformity and may be used as correction factors in calculating hydroxyl number. 1.1 These test methods measure the acidic and basic constituents in polyols and other materials of high acidity or alkalinity that are soluble in mixtures of toluene and ethyl alcohol. These test methods do not apply to polyethers. (See Note 1.) 1.2 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. Note 18212;There is no known ISO equivalent to this standard.
信息：ICS：83.040.30;83.080.20 CCS：G31 发布：2008 实施：
ASTM D8045-17 用催化测温滴定法测定原油和石油产品酸值的标准试验方法
简介：
信息：ICS：75.040 CCS： 发布：2017-07-01 实施：
ASTM D7253-06(2011)e1 聚氨酯原料的标准试验方法:测定聚醚多元醇酸值的酸度
简介：
信息：ICS：83.080.20 CCS： 发布：2011-09-01 实施：
ASTM D3339-07 通过半微量颜色指示剂滴定测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2007-11-01 实施：
ASTM D3339-12(2017) 通过半微量颜色指示剂滴定测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2017-05-01 实施：
ASTM D664-11a 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.080 CCS： 发布：2011-07-15 实施：
ASTM D664-07 用电位滴定法测定石油产品酸值的标准试验方法
简介：
信息：ICS：75.040 CCS： 发布：2007-07-01 实施：
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