碱值检测标准

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碱值检测标准相关信息

GB/T 4945-2002 石油产品和润滑剂酸值和碱值测定法(颜色指示剂法)
简介:1.1 本标准适用于测定能在甲苯和异丙醇混合溶剂中全溶或几乎全溶的石油产品和润滑剂的酸性或 碱性组分,它适用于测定在水中离解常数大于lo-9的酸或碱,离解常数小于10-9的极弱酸或碱不影响 测定,如果盐类水解常数大于10-9,则有影响。 注 1在新的和使用过的油中,被认为具有酸性的组分包括有机酸、无机酸、酯、酚类化合物、内酯、树脂、重金属盐类和 添加剂,如抗氧剂和清净剂。同样,被认为具有碱性的组分包括有机碱、无机碱、胺类化合物、弱酸的盐类(皂类)、 多元酸的碱式盐、重金属盐类和添加剂,如抗氧剂和清净剂。 2本方法不适用于测定含有多种碱性添加剂类型的润滑油的碱值,此类油品的碱值可以用SH/T 0688的试验方 法来测定。 1.2本标准可用于表明使用中的油品在氧化条件下的相对变化。尽管滴定是在规定条件下进行的,但 是本标准不能测定绝对酸性和碱性,以预测油品在使用条件下的性能。已经知道酸值或碱值与轴承腐蚀 之间没有必然联系。 注:某些油品,例如切削油、防锈油和类似的复合油品,或深色油品,由于指示剂呈现的终点不明显,不能用本方法测 定酸值,可以用GB/T 7304的试验方法测定。颜色指示剂法测定的酸值在数值上不一定与GB/T 7304的结果相 等。颜色指示剂法测定的碱值与SH/T 0688在数值上也不一定相等,但数据具有一定相关性。
信息:ICS:75.080 CCS:E30 发布:2002-01-14 实施:2002-08-01

ASTM D2896-2011 电位高氯酸滴定法对石油产品碱值的标准试验方法
简介:New and used petroleum products can contain basic constituents that are present as additives. The relative amounts of these materials can be determined by titration with acids. The base number is a measure of the amount of basic substance in the oil, always under the conditions of the test. It is sometimes used as a measure of lubricant degradation in service; however, any condemning limits must be empirically established.1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid. 1.2 Procedures A and B use different titration solvent volumes and sample weights. Note 18212;A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results. 1.3 Appendix X2 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph X2.5.5 provides guidance when comparing results using the two different solvents. 1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 28212;This test method is applicable to both fresh oils and used oils as described in Sections 17, 18, and 20 and Appendix X1. 1.5 This test method can be used to determine base number >300 mg KOH/g. However, the precision statement in Section 20 has been obtained only on base number x2264;300 mg KOH/g. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.7 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. For specific warning statements, see Section 7, Section 10, and X2.2.
信息:ICSCCS:E30 发布:2011 实施

ASTM D2896-2006 用高氯酸电位滴定法测定石油产品碱值的标准试验方法
简介:1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid.1.2 Procedures A and B use different titration solvent volumes and sample weights. Note 1A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results.1.3 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph provides guidance when comparing results using the two different solvents.1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 2This test method is applicable to both fresh oils and used oils as described in Sections , , and and .1.5 This test method can be used to determine base number >300 mg KOH/g. However, the precision statement in Section has been obtained only on base number 300 mg KOH/g.1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.7 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. For specific hazard statements, see Section , Section , and .
信息:ICS:75.080 (Petroleum products in general) CCS:E30 发布:2006 实施

ASTM D2896-21 电位高氯酸滴定法测定石油产品碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2021-11-01 实施

ASTM D4739-2011(2017) 采用盐酸电位滴定法测定碱值的标准试验方法
简介: 5.1x00a0;New and used petroleum products can contain basic constituents that are present as additives. The relative amount of these materials can be determined by titration with acids. The base number is a measure of the amount of basic substances in the oil always under the conditions of the test. It is sometimes used as a measure of lubricant degradation in service. However, any condemning limit shall be empirically established. 5.2x00a0;As stated in 1.2, this test method uses a weaker acid to titrate the base than Test Method D2896, and the titration solvents are also different. Test Method D2896 uses a stronger acid and a more polar solvent system than Test Method D4739. As a result, Test Method D2896 will titrate salts of weak acids (soaps), basic salts of polyacidic bases, and weak alkaline salts of some metals. They do not protect the oil from acidic components due to the degradation of the oil. This test method may produce a falsely exaggerated base number. Test Method D4739 will probably not titrate these weak bases but, if so, will titrate them to a lesser degree of completion. It measures only the basic components of the additive package that neutralizes acids. On the other hand, if the additive package contains weak basic components that do not play a role in neutralizing the acidic components of the degrading oil, then the Test Method D4739 result may be falsely understated. 5.3x00a0;Particular care is required in the interpretation of the base number of new and used lubricants. 5.3.1x00a0;When the base number of the new oil is required as an expression of its manufactured quality, Test Method D2896 is preferred, since it is known to titrate weak bases that this test method may or may not titrate reliably. 5.3.2x00a0;When the base number of in-service or at-term oil is required, this test method is preferred because in many cases, especially for internal combustion engine oils, weakly basic degradation products are possible. Test Method D2896 will titrate these, thus giving a false value of essential basicity. This test method may or may not titrate these weak acids. 5.3.3x00a0;When the loss of base number value, as the oils proceed in service, is the consideration, this test method is to be preferred and all values including the unused oil shall be determined by this test method. Base numbers obtained by this test method shall not be related to base numbers obtained by another test method such as Test Method D2896. 5.3.4x00a0;In ASTM Interlaboratory Crosscheck Programs for both new and used lubricants, historically Test Method D2896 gives a higher value for base number. 1.1x00a0;This test method covers a procedure for the determination of basic constituents in petroleum products and new and used lubricants. This test method resolves these co......
信息:ICS:71.040.40 CCS:G04 发布:2011 实施

ASTM D4739-2006a 电势滴定法测定碱值的标准试验方法
简介:New and used petroleum products can contain basic constituents that are present as additives or as degradation products formed during service. The relative amount of these materials can be determined by titrating with acids. The base number is a measure of the amount of basic substances in the oilx2014;always under the conditions of the test. The base 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.1.1 This test method covers a procedure for the determination of basic constituents in petroleum products and lubricants (Note 1). The test method resolves these constituents into groups having weak-base and strong-base ionization properties, provided the dissociation constants of the more strongly basic compounds are at least 1000 times that of the next weaker groups.1.1.1 This test method covers base numbers up to 70. While it can be extended to higher base numbers, the precision of the test method for base numbers greater than 70 has not been determined. Note 0In new and used oils, the constituents which can be considered to have basic properties are primarily organic and inorganic bases, including amino compounds, although certain salts of heavy metals, salts of weak acids, basic salts of polyacidic compounds, and some additives such as inhibitors or detergents may show basic characteristics.1.2 This test method can be used to indicate relative changes that occur in an oil during use under oxidizing or other service conditions regardless of the color or other properties of the resulting oil (Note 3). Although the analysis is made under closely specified conditions, the method is not intended to, and does not, result in reported basic properties which can be used under all service conditions to predict performance of an oil; for example, no overall relationship is known between bearing corrosion or the control of corrosive wear in the engine and base number. Note 3Test Method D 4739 was developed as an alternative for the former base number portion of Test Method D 664. Base numbers obtained by this method may or may not be numerically the same as those obtained by the former base number portion of Test Method D 664.Note 0A color indicator titration method is also available in the Test Method D 974 and IP 139. The base numbers obtained by the potentiometric method may or may not be numerically the same as those obtained by Test Method D 974 or equivalent color indicator methods such as given in Federal Test Method Std. No. 791b. Potentiometric methods for base number are also available in Test Method D 2896.1.3 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:71.040.40 (Chemical analysis) CCS:G04 发布:2006 实施

ASTM D4739-17 用电位滴定法测定碱值的标准试验方法
简介:
信息:ICS:71.040.40 CCS发布:2017-12-01 实施

DIN SPEC 1131-2010 土壤特性.土壤和土壤物料的后续化学和生态毒理学试验用浸析规程.第4部分:经初始酸解/碱聚浸析对pH值的影响(ISO/TS 21268-4-2007).德文版本CEN ISO/TS 21268-4-2009
简介:DIN ISO/TS 21268-4 specifies a test method to obtain information on the short- and long-term leaching behaviour and characteristic properties of materials. It applies to the determination of the influence of pH on the leachability of inorganic and organic constituents from soil and soil material and the ecotoxicological effects of eluates with respect to microorganisms, fauna and flora. The test is not suitable for constituents that are volatile under ambient conditions. Equilibrium condition, as defined in DIN ISO/TS 21268-4, is established by the addition of pre-determined amounts of acid or base to reach desired end pH values. The test procedure specified in DIN ISO/TS 21268-4 produces eluates, which are subsequently characterised by existing physical, chemical and ecotoxicological standard methods. This test is mainly aimed at use for routine and control purposes, and alone it cannot be used to describe all leaching properties of a soil. Additional leaching tests are needed for that extended goal.
信息:ICS:13.080.05 CCS:B11 发布:2010-02 实施

ASTM D4739-05 电位滴定法测定碱值的标准试验方法
简介:
信息:ICS:71.040.40 CCS发布:2005-11-01 实施

ASTM D4739-11(2017) 用电位滴定法测定碱值的标准试验方法
简介:
信息:ICS:71.040.40 CCS发布:2017-06-01 实施

KS M ISO 21268-4-2008(2018) 土壤质量土壤和土壤材料后续化学和生态毒理学试验的浸出程序第4部分:pH值对初始添加酸/碱浸出的影响
简介:
信息:ICS:13.080.05 CCS发布:2008-12-23 实施

ASTM D4739-2005 电势滴定法测定碱值的标准试验方法
简介:1.1 This test method covers a procedure for the determination of basic constituents in petroleum products and lubricants (Note 0). The test method resolves these constituents into groups having weak-base and strong-base ionization properties, provided the dissociation constants of the more strongly basic compounds are at least 1000 times that of the next weaker groups.1.1.1 This test method covers base numbers up to 70. While it can be extended to higher base numbers, the precision of the test method for base numbers greater than 70 has not been determined. Note 0In new and used oils, the constituents which can be considered to have basic properties are primarily organic and inorganic bases, including amino compounds, although certain salts of heavy metals, salts of weak acids, basic salts of polyacidic compounds, and some additives such as inhibitors or detergents may show basic characteristics.1.2 This test method can be used to indicate relative changes that occur in an oil during use under oxidizing or other service conditions regardless of the color or other properties of the resulting oil (Note 0). Although the analysis is made under closely specified conditions, the method is not intended to, and does not, result in reported basic properties which can be used under all service conditions to predict performance of an oil; for example, no overall relationship is known between bearing corrosion or the control of corrosive wear in the engine and base number. Note 3Test Method D 4739 was developed as an alternative for the former base number portion of Test Method D 664. Base numbers obtained by this method may or may not be numerically the same as those obtained by the former base number portion of Test Method D 664.Note 0A color indicator titration method is also available in the Test Method D 974 and IP 139. The base numbers obtained by the potentiometric method may or may not be numerically the same as those obtained by Test Method D 974 or equivalent color indicator methods such as given in Federal Test Method Std. No. 791b. Potentiometric methods for base number are also available in Test Method D 2896.1.3 solely-SI-units;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:71.040.40 (Chemical analysis) CCS:G04 发布:2005 实施

ASTM D2896-2015 用高氯酸电位滴定法对石油产品碱值的标准试验方法
简介: 5.1x00a0;New and used petroleum products can contain basic constituents that are present as additives. The relative amounts of these materials can be determined by titration with acids. The base number is a measure of the amount of basic substance in the oil, always under the conditions of the test. It is sometimes used as a measure of lubricant degradation in service; however, any condemning limits must be empirically established. 1.1x00a0;This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid. 1.2x00a0;Procedures A and B use different titration solvent volumes and sample weights. Note 1:x00a0;A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results. 1.3x00a0;Appendix X2 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph X2.5.5 provides guidance when comparing results using the two different solvents. 1.4x00a0;The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 2:x00a0;This test method is applicable to both fresh oils and used oils as described in Sections 16, 17, and 19 and Appendix X1. 1.5x00a0;This test method can be used to determine base number >3008201;mg KOH/g. However, the precision statement in Section 19 has been obtained only on base number x2264;3008201;mg KOH/g. 1.6x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.7x00a0;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. For specific warning statements, see Section 7, Section 10, and X2.2.
信息:ICSCCS发布:2015 实施

ASTM D974-08e1 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2008-07-01 实施

ASTM D2896-2005 用高氯酸电位滴定法测定石油产品碱值的标准试验方法
简介:1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid.1.2 Procedures A and B use different titration solvent volumes and sample weights. Note 1-A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results.1.3 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph provides guidance when comparing results using the two different solvents.1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 2-This test method is applicable to both fresh oils and used oils as described in Sections , , and and .1.5 This test method can be used to determine base number >300 mg KOH/g. However, the precision statement in Section has been obtained only on base number 300 mg KOH/g.1.6 solely-SI-units;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. For specific hazard statements, see Section , Section , and .
信息:ICS:75.080 (Petroleum products in general) CCS:E30 发布:2005 实施

ASTM D974-14e1 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2014-12-01 实施

ASTM D974-08 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2008-07-01 实施

ASTM D6437-2005 聚氨酯原材料的标准试验方法:低碱多元醇中的碱性(多元醇的CPR值的测定)
简介:This test method is suitable for quality control, as a specification test and for research. The urethane reaction between polyols and isocyanates to form polyurethane polymers is known to be sensitive to the presence of basic substances. This is particularly important in the preparation of polyurethane prepolymers which contain isocyanate groups that are known to react in the presence of trace amounts of basic substances. Since many polyether polyols are often made with strongly basic catalysts, it is important to have an analytical method capable of detecting small quantities of residual basic substances. This test method is capable of detecting ppm levels of base (as KOH).3 1.1 This test method covers measuring alkalinity in low-alkalinity (0.002 meq/g basicity) polyols. This alkalinity is often expressed as CPR (controlled polymerization rate) of polyether polyols. This test method is not applicable to amine-based polyols.1.2 The values stated in SI units are to be regarded as the standard.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 1There is no similar or equivalent ISO standard.
信息:ICS:83.040.01 (Raw materials for rubber and plastics i CCS:G31 发布:2005 实施

ASTM D974-14 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2014-12-01 实施

ASTM D4739-08e1 用电位滴定法测定碱值的标准试验方法
简介:
信息:ICS:71.040.40 CCS发布:2008-02-01 实施

ASTM D974-04 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2004-11-01 实施

ASTM D974-14e2 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2014-12-01 实施

ASTM D4739-08 用电位滴定法测定碱值的标准试验方法
简介:
信息:ICS:71.040.40 CCS发布:2008-02-01 实施

KS M ISO 6618-2003 石油产品和润滑剂.酸值和碱值的测定.彩色指示剂滴定法
简介:이 규격은 수중 해리 정수가 10-9보다 큰 산/염기 성분을 함유한 석유 제품과 윤활유
信息:ICS:75.180 CCS:E30 发布:2003-12-06 实施:2003-12-06

DIN 51639-1-2014 润滑剂试验. 试验方法. 第1部分: 总碱值的测定
简介:
信息:ICS:75.100 CCS:E34 发布:2014-11 实施

TCVN 2695-2008 石油产品.酸和碱值的测定.颜色指示剂滴定法
简介:
信息:ICSCCS发布:2008 实施

KS M ISO 6618-2003 石油产品和润滑剂.酸值和碱值的测定.彩色指示剂滴定法
简介:이 규격은 수중 해리 정수가 10-9보다 큰 산/염기 성분을 함유한 석유 제품과 윤활유
信息:ICS:75.180 CCS:E30 发布:2003-12-06 实施:2003-12-06

GOST ISO 3771-2013 石油产品. 使用高氯酸电位滴定法测定碱值
简介:
信息:ICS:75.080 CCS发布:2013 实施:2015-01-01

ASTM D4739-2008e1 电势滴定法测定碱值的标准试验方法
简介:New and used petroleum products can contain basic constituents that are present as additives. The relative amount of these materials can be determined by titration with acids. The base number is a measure of the amount of basic substances in the oil always under the conditions of the test. It is sometimes used as a measure of lubricant degradation in service. However, any condemning limit shall be empirically established. 5.2 As stated in 1.2, this test method uses a weaker acid to titrate the base than Test Method D 2896, and the titration solvents are also different. Test Method D 2896 uses a stronger acid and a more polar solvent system than Test Method D 4739. As a result, Test Method D 2896 will titrate salts of weak acids (soaps), basic salts of polyacidic bases, and weak alkaline salts of some metals. They do not protect the oil from acidic components due to the degradation of the oil. This test method may produce a falsely exaggerated base number. Test Method D 4739 will probably not titrate these weak bases but, if so, will titrate them to a lesser degree of completion. It measures only the basic components of the additive package that neutralizes acids. On the other hand, if the additive package contains weak basic components that do not play a role in neutralizing the acidic components of the degrading oil, then the Test Method D 4739 result may be falsely understated. 5.3 Particular care is required in the interpretation of the base number of new and used lubricants. 5.3.1 When the base number of the new oil is required as an expression of its manufactured quality, Test Method D 2896 is preferred, since it is known to titrate weak bases that this test method may or may not titrate reliably. 5.3.2 When the base number of in-service or at-term oil is required, this test method is preferred because in many cases, especially for internal combustion engine oils, weakly basic degradation products are possible. Test Method D 2896 will titrate these, thus giving a false value of essential basicity. This test method may or may not titrate these weak acids. 5.3.3 When the loss of base number value, as the oils proceed in service, is the consideration, this test method is to be preferred and all values including the unused oil shall be determined by this test method. Base numbers obtained by this test method shall not be related to base numbers obtained by another test method such as Test Method D 2896. 5.3.4 In ASTM Interlaboratory Crosscheck Programs for both new and used lubricants, historically Test Method D 2896 gives a higher value for base number.1.1 This test method covers a procedure for the determination of basic constituents in petroleum products and new and used lubricants. This test method resolves these constituents into groups having weak-base and strong-base ionization properties, provided the dissociation constants of the more strongly basic compounds are at least 1000 times than that of the next weaker groups. This test method covers base numbers up to 250. 1.2 In new and used lubricants, the constituents that can be considered to have basic properties are primarily organic and inorganic bases, including amino compounds. This test method uses hydrochloric acid as the titrant, whereas Test Method D 2896 uses perchloric acid as the titrant. This test method may or may not titrate these weak bases and, if so, it will titrate them to a lesser degree of completion; some additives such as inhibitors or detergents may show basic characteristics. 1.3 When testing used engine lubricants, it should be recognized that certain weak bases are the result of the service rather than having been built into the oil. This test method can be used to indic......
信息:ICS:71.040.40 CCS:G04 发布:2008 实施

ASTM D4662-2003 聚氨基甲酸酯原材料的标准试验方法:多元醇酸、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 equivalent ISO standard.
信息:ICS:83.040.30 (Auxiliary materials and additives for p CCS:G31 发布:2003 实施

GOST 32328-2013 石油制品和润滑剂. 使用颜色指示剂滴定法测定酸值和碱值
简介:
信息:ICS:75.080 CCS发布:2013 实施:2015-01-01

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 D2896-2003 用高氯酸电位滴定法测量石油产品碱值的标准试验方法
简介:1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid.1.2 Procedures A and B use different titration solvent volumes and sample weights.Note 18212;A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results.1.3 Appendix X2 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph X2.5.5 provides guidance when comparing results using the two different solvents.1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals.Note 28212;This test method is applicable to both fresh oils and used oils as described in Sections 16, 17, and 19 and Appendix X1.1.5 This test method can be used to determine base number 62;300 mg KOH/g. However, the precision statement in Section 19 has been obtained only on base number 8804;300 mg KOH/g.1.6 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. For specific hazard statements, see Section 7, Section 10, and X2.2.
信息:ICS:75.080 (Petroleum products in general) CCS:E30 发布:2003 实施

KS M ISO 3771-2012(2022) 石油产品碱值的测定高氯酸电位滴定法
简介:
信息:ICS:75.080 CCS发布:2012-10-12 实施

ASTM D4662-2008 聚氨酯原材料的标准试验方法:多元醇酸、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:83.080.20 (Thermoplastic materials) CCS:G31 发布:2008 实施

ASTM D4739-02 电位滴定法测定碱值的标准试验方法
简介:
信息:ICS:71.040.40 CCS发布:2002-12-10 实施

KS M ISO 3771-2012(2017) 石油产品碱值的测定高氯酸电位滴定法
简介:
信息:ICS:75.080 CCS发布:2012-10-12 实施

ISO/TS 21268-4:2007 土壤质量——土壤和土壤材料后续化学和生态毒理学试验的浸出程序第4部分:pH值对初始添加酸/碱浸出的影响
简介:
信息:ICS:13.080.05 CCS发布:2007-11-15 实施

ASTM D974-02e1 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2002-06-10 实施

ASTM D974-12 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2012-04-15 实施

ASTM D974-07 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2007-11-01 实施

ASTM D974-02 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2002-06-10 实施

ISO 3771:2011 石油产品——碱值的测定——高氯酸电位滴定法
简介:
信息:ICS:75.080 CCS发布:2011-09-05 实施

ASTM D2896-2007 用高氯酸电位滴定法对石油产品碱值的标准试验方法
简介:1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid.1.2 Procedures A and B use different titration solvent volumes and sample weights. Note 1 - A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results.1.3 Appendix X2 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph X2.5.5 provides guidance when comparing results using the two different solvents.1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 2 - This test method is applicable to both fresh oils and used oils as described in Sections 16, 17, and 19 and Appendix X1.1.5 This test method can be used to determine base number >300 mg KOH/g. However, the precision statement in Section 19 has been obtained only on base number 300 mg KOH/g.1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.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. For specific hazard statements, see Section 7, Section 10, and X2.2.
信息:ICS:75.080 (Petroleum products in general) CCS:E30 发布:2007 实施

ASTM D4739-2002 电势滴定法测定碱值的标准试验方法
简介:1.1 This test method covers a procedure for the determination of basic constituents in petroleum products and lubricants (Note 1). The test method resolves these constituents into groups having weak-base and strong-base ionization properties, provided the dissociation constants of the more strongly basic compounds are at least 1000 times that of the next weaker groups.1.1.1 This test method covers base numbers up to 70. While it can be extended to higher base numbers, the precision of the test method for base numbers greater than 70 has not been determined. Note 18212;In new and used oils, the constituents which can be considered to have basic properties are primarily organic and inorganic bases, including amino compounds, although certain salts of heavy metals, salts of weak acids, basic salts of polyacidic compounds, and some additives such as inhibitors or detergents may show basic characteristics.1.2 This test method can be used to indicate relative changes that occur in an oil during use under oxidizing or other service conditions regardless of the color or other properties of the resulting oil (Note 3). Although the analysis is made under closely specified conditions, the method is not intended to, and does not, result in reported basic properties which can be used under all service conditions to predict performance of an oil; for example, no overall relationship is known between bearing corrosion or the control of corrosive wear in the engine and base number. Note 28212;Test Method D 4739 was developed as an alternative for the former base number portion of Test Method D 664. Base numbers obtained by this method may or may not be numerically the same as those obtained by the former base number portion of Test Method D 664.Note 38212;A color indicator titration method is also available in the Test Method D 974 and IP 139. The base numbers obtained by the potentiometric method may or may not be numerically the same as those obtained by Test Method D 974 or equivalent color indicator methods such as given in Federal Test Method Std. No. 791b. Potentiometric methods for base number are also available in Test Method D 2896.1.3 The values stated in SI units are to be regarded as the 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 and health practices and determine the applicability of regulatory limitations prior to use.
信息:ICS:71.040.40 (Chemical analysis) CCS:G04 发布:2002 实施

ISO 3771-2011 石油产品.碱值测定法.高氯酸电位滴定法
简介:
信息:ICS:75.080 CCS:E30 发布:2011-09 实施

ASTM D2896-2007a 用高氯酸电位滴定法对石油产品碱值的标准试验方法
简介:New and used petroleum products can contain basic constituents that are present as additives. The relative amounts of these materials can be determined by titration with acids. The base number is a measure of the amount of basic substance in the oil, always under the conditions of the test. It is sometimes used as a measure of lubricant degradation in service; however, any condemning limits must be empirically established.1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid.1.2 Procedures A and B use different titration solvent volumes and sample weights. Note 1 - A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results.1.3 Appendix X2 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph provides guidance when comparing results using the two different solvents.1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 2 - This test method is applicable to both fresh oils and used oils as described in Sections 16, 17, and 19 and Appendix X1.1.5 This test method can be used to determine base number >300 mg KOH/g. However, the precision statement in Section has been obtained only on base number 300 mg KOH/g.1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.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. For specific warning statements, see Section 7, Section 10, and X2.2.
信息:ICS:75.080 (Petroleum products in general) CCS:E30 发布:2007 实施

ASTM D974-01 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2001-11-10 实施

ASTM D974-11 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2011-05-15 实施

ASTM D974-06 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2006-11-01 实施

ASTM D974-97 通过颜色指示剂滴定测定酸和碱值的标准试验方法
简介:
信息:ICS:75.080 CCS发布:2001-11-10 实施

ASTM D4739-11 用电位滴定法测定碱值的标准试验方法
简介:
信息:ICS:71.040.40 CCS发布:2011-05-15 实施

ASTM D4739-06a 电位滴定法测定碱值的标准试验方法
简介:
信息:ICS:71.040.40 CCS发布:2006-11-01 实施

ASTM D2896-2001e1 高氯酸电位滴定法测量石油产品碱值的标准试验方法
简介:1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid.1.2 Procedures A and B use different titration solvent volumes and sample weights. Note 18212;A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results.1.3 Appendix A2 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph X2.5.5 provides guidance when comparing results using the two different solvents.1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 28212;This test method is applicable to both fresh oils and used oils as described in Sections 16, 17, and 19 and in the Appendix X1.1.5 This test method can be used to determine base number >300 mg KOH/g. However, the precision statement in Section 19 has been obtained only on base number 8804;300 mg KOH/g.1.6 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. For specific hazard statements, see Section 7, Section 10, and X2.2.
信息:ICS:75.080 (Petroleum products in general) CCS:E30 发布:2001 实施

ASTM D4739-2011 电势滴定法测定碱值的标准试验方法
简介:New and used petroleum products can contain basic constituents that are present as additives. The relative amount of these materials can be determined by titration with acids. The base number is a measure of the amount of basic substances in the oil always under the conditions of the test. It is sometimes used as a measure of lubricant degradation in service. However, any condemning limit shall be empirically established. 5.2 As stated in 1.2, this test method uses a weaker acid to titrate the base than Test Method D2896, and the titration solvents are also different. Test Method D2896 uses a stronger acid and a more polar solvent system than Test Method D4739. As a result, Test Method D2896 will titrate salts of weak acids (soaps), basic salts of polyacidic bases, and weak alkaline salts of some metals. They do not protect the oil from acidic components due to the degradation of the oil. This test method may produce a falsely exaggerated base number. Test Method D4739 will probably not titrate these weak bases but, if so, will titrate them to a lesser degree of completion. It measures only the basic components of the additive package that neutralizes acids. On the other hand, if the additive package contains weak basic components that do not play a role in neutralizing the acidic components of the degrading oil, then the Test Method D4739 result may be falsely understated. 5.3 Particular care is required in the interpretation of the base number of new and used lubricants. 5.3.1 When the base number of the new oil is required as an expression of its manufactured quality, Test Method D2896 is preferred, since it is known to titrate weak bases that this test method may or may not titrate reliably. 5.3.2 When the base number of in-service or at-term oil is required, this test method is preferred because in many cases, especially for internal combustion engine oils, weakly basic degradation products are possible. Test Method D2896 will titrate these, thus giving a false value of essential basicity. This test method may or may not titrate these weak acids. 5.3.3 When the loss of base number value, as the oils proceed in service, is the consideration, this test method is to be preferred and all values including the unused oil shall be determined by this test method. Base numbers obtained by this test method shall not be related to base numbers obtained by another test method such as Test Method D2896. 5.3.4 In ASTM Interlaboratory Crosscheck Programs for both new and used lubricants, historically Test Method D2896 gives a higher value for base number.1.1 This test method covers a procedure for the determination of basic constituents in petroleum products and new and used lubricants. This test method resolves these constituents into groups having weak-base and strong-base ionization properties, provided the dissociation constants of the more strongly basic compounds are at least 1000 times than that of the next weaker groups. This test method covers base numbers up to 250. 1.2 In new and used lubricants, the constituents that can be considered to have basic properties are primarily organic and inorganic bases, including amino compounds. This test method uses hydrochloric acid as the titrant, whereas Test Method
信息:ICS:71.040.40 (Chemical analysis) CCS:G04 发布:2011 实施

ASTM D4739-06 电位滴定法测定碱值的标准试验方法
简介:
信息:ICS:71.040.40 CCS发布:2006-07-01 实施

ASTM D2896-2001 高氯酸电位滴定法测量石油产品碱值的标准试验方法
简介:1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid.1.2 Procedures A and B use different titration solvent volumes and sample weights. Note 18212;A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results.1.3 Appendix A2 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph X2.5.5 provides guidance when comparing results using the two different solvents.1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 28212;This test method is applicable to both fresh oils and used oils as described in Sections 16, 17, and 19 and in the Appendix X1.1.5 This test method can be used to determine base number >300 mg KOH/g. However, the precision statement in Section 19 has been obtained only on base number 8804;300 mg KOH/g.1.6 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. For specific hazard statements, see Section 7, Section 10, and X2.2.
信息:ICSCCS:E30 发布:2001 实施

ASTM D2896-2011 电位高氯酸滴定法对石油产品碱值的标准试验方法
简介:New and used petroleum products can contain basic constituents that are present as additives. The relative amounts of these materials can be determined by titration with acids. The base number is a measure of the amount of basic substance in the oil, always under the conditions of the test. It is sometimes used as a measure of lubricant degradation in service; however, any condemning limits must be empirically established.1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid. 1.2 Procedures A and B use different titration solvent volumes and sample weights. Note 18212;A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results. 1.3 Appendix X2 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph X2.5.5 provides guidance when comparing results using the two different solvents. 1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 28212;This test method is applicable to both fresh oils and used oils as described in Sections 17, 18, and 20 and Appendix X1. 1.5 This test method can be used to determine base number >300 mg KOH/g. However, the precision statement in Section 20 has been obtained only on base number x2264;300 mg KOH/g. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.7 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. For specific warning statements, see Section 7, Section 10, and X2.2.
信息:ICSCCS:E30 发布:2011 实施

ASTM D2896-2006 用高氯酸电位滴定法测定石油产品碱值的标准试验方法
简介:1.1 This test method covers the determination of basic constituents in petroleum products by titration with perchloric acid in glacial acetic acid.1.2 Procedures A and B use different titration solvent volumes and sample weights. Note 1A round robin on a series of new and used oils and additive concentrates has shown that the two procedures give statistically equivalent results.1.3 provides the use of an alternative solvent system which eliminates the use of chlorobenzene in this test method. The use of the alternative solvent gives statistically equivalent results; however, the precision is worse. Paragraph provides guidance when comparing results using the two different solvents.1.4 The constituents that may be considered to have basic characteristics include organic and inorganic bases, amino compounds, salts of weak acids (soaps), basic salts of polyacidic bases, and salts of heavy metals. Note 2This test method is applicable to both fresh oils and used oils as described in Sections , , and and .1.5 This test method can be used to determine base number >300 mg KOH/g. However, the precision statement in Section has been obtained only on base number 300 mg KOH/g.1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.7 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. For specific hazard statements, see Section , Section , and .
信息:ICS:75.080 (Petroleum products in general) CCS:E30 发布:2006 实施

DIN EN 1877-2-2000 混凝土结构保护和维修用产品和系统.试验方法.与环氧树脂相关的活性成分.第2部分:通过总碱值测定氨成分
简介:The document describes a method for determining total basicity number of amines and is applicable to amine-based hardeners used the epoxy resins.
信息:ICS:91.080.40 CCS:P25 发布:2000-12 实施

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