水中铵离子的测定标准检测标准水中铵离子的测定标准-中析研究所检测

(CMA)

(CNAS)

(ISO)

(高新技术企业)

水中铵离子的测定标准相关标准参考信息

ASTM D7319-22 用直接注入抑制离子色谱法测定燃料乙醇和丁醇中存在的和潜在的硫酸盐和无机氯化物的标准试验方法
简介：
信息：ICS：71.040.50 CCS：发布：2022-10-01 实施：

KS F 2711-2017(2022) 用电导法测定混凝土抗氯离子渗透性的标准试验方法
简介：
信息：ICS：91.100.30 CCS：发布：2017-12-04 实施：

ASTM E2469-2016 采用离子色谱法测定单甘醇, 双甘醇, 三甘醇中氯化物的标准试验方法
简介：4.1x00a0;This test method provides for the quantitative determination of inorganic chloride (chloride ion) in monoethylene glycol (MEG), diethylene glycol (DEG) and triethylene glycol (TEG) using ion chromatography with conductivity detection. The analysis time is less than 5 min with little or no sample preparation required. Conductivity detection is a universal detection mode and is linear over the range of the method. Acceptable levels of chloride in polyester-grade and low-conductivity-grade MEG vary with the manufacturerx2019;s specifications but are normally in the low mg/kg range. Knowledge of the chloride content in polyester-grade and low-conductivity-grade MEG is required to establish whether the MEG product meets specification requirements. 4.2x00a0;Glycols have high viscosities and a dilution with high quality deionized water may be required depending on the capability of the autosampler, if used, to deliver the injection. All standards and samples, whether diluted or not should be treated in the same manner. 1.1x00a0;This test method covers the determination of inorganic chloride (chloride ion) in monoethylene glycol (MEG), diethylene glycol (DEG) and triethylene glycol (TEG) in the range of 0.01 to 1.0 mg/kg by ion chromatography (IC). 1.2x00a0;Ethylene glycol can be analyzed directly by this test method without any sample preparation or diluted with high quality deionized water if an autosampler is used and dilution is necessary (that is, 50:50 or other suitable ratio). 1.3x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3.1x00a0;The exception is the additional information of (psi) in 9.3.3, 11.1.1, and 11.2.1. 1.4x00a0;Review the current Safety Data Sheets (SDS) for detailed information concerning toxicity, first-aid procedures and safety precautions. 1.5x00a0;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 to determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 9.
信息：ICS：71.040.40 CCS：发布：2016 实施：

ASTM D7363-13A(2021)e1 在选定离子监测模式下用固相微萃取和气相色谱/质谱法测定沉积物孔隙水中母体和烷基多环芳烃的标准试验方法
简介：
信息：ICS：13.080.10 CCS：发布：2021-11-01 实施：

ASTM D8149-17 离子色谱测定石油产品和润滑油中杂原子和阴离子的优化校准和验证的标准实践
简介：
信息：ICS：75.080 CCS：发布：2017-12-01 实施：

ASTM E1787-2016 采用离子色谱法测定烧碱和烧碱中的阴离子 (氢氧化钠和氢氧化钾) 的标准试验方法
简介：4.1x00a0;Anion impurities in caustic soda and caustic potash are monitored by manufacturers and users for quality control of the products. Anions of primary interest are chloride, chlorate, and sulfate. This test method has determined precision estimates only for these three impurities. 1.1x00a0;This test method covers the determination of anionic impurities in 508201;% caustic soda (sodium hydroxide) and 508201;% caustic potash (potassium hydroxide) solutions using ion chromatography (IC). Anions that can be determined at concentrations of approximately 0.1 to 1000 ug/g (ppm) include: bromide, chlorate, chloride, fluoride, nitrate, phosphate, and sulfate. 1.2x00a0;By varying the sample size, this test method can be used for anhydrous caustic soda and caustic potash products, as well as other concentrations of liquid products. 1.3x00a0;This test method is not intended to be used to quantify chloride in caustic soda where the sodium chloride concentration is approximately 18201;%. For the most accurate determinations, it is recommended that high concentrations of chloride be analyzed using a potentiometric titration procedure, such as the one described in Test Methods E291. 1.4x00a0;The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only. 1.5x00a0;Review the current appropriate Safety Data Sheets (SDS) for detailed information concerning toxicity, first aid procedures, and safety precautions. 1.6x00a0;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. Specific hazards statements are given in Section 8.
信息：ICS：71.040.50 CCS：发布：2016 实施：

ASTM D3561-16(2021)e1 原子吸收分光光度法测定微咸水、海水和盐水中锂、钾和钠离子的标准试验方法
简介：
信息：ICS：13.060.50 CCS：发布：2021-11-01 实施：

ASTM D7319-17 通过直接注射抑制离子色谱法测定燃料乙醇和丁醇中存在的和潜在的硫酸盐和无机氯的标准测试方法
简介：
信息：ICS：71.040.50 CCS：发布：2017-10-01 实施：

ASTM D5996-2016 采用在线离子色谱法测定高纯水中阴离子污染物的标准试验方法
简介：5.1x00a0;In the power-generation industry, high-purity water is used to reduce corrosion from anions, such as sulfate, chloride, and fluoride. These anions are known to be detrimental to materials of construction used in steam generators, reactor vessel internals and recirculation piping, heat exchangers, connective piping, and turbines. Most electric generating plants try to control these anions to <1.0 x03bc;g/L in the steam generator feed water. Some nuclear power plants have been able to control anion contaminants at less than 0.02 x03bc;g/L. 5.2x00a0;These anions and others cause low product yields in semiconductor manufacturing. They are also monitored and controlled at similarly low levels as in the electric power industry. 5.3x00a0;Low molecular weight organic acids (acetate, formate, propionate) have been detected in steam generator feed water. These low molecular weight organic materials are believed to be high-temperature degradation products of chemicals used to control cycle water pH and organic contaminants in cycle makeup water. 5.4x00a0;In the semiconductor industry, anion contaminants may come from the breakdown of low molecular weight organic materials by ultraviolet light radiation, which is frequently used to produce bacteria-free water. These organic compounds may also contribute to low product yield. 5.5x00a0;The production of high-purity water for process makeup and use frequently employs the use of demineralizers to remove unwanted anion contaminants. Also in the electric power industry, demineralizers are used in the process stream to maintain low levels of these contaminants. As such, it is important to monitor this process to ensure that water quality standards are being met. These processes can be monitored for the above-mentioned anions. 5.6x00a0;On-line measurements of these contaminants provide a greater degree of protection of the processes by allowing for frequent on-line measurement of these species. Early detection of contaminant ingress allows for quicker corrective action to locate, reduce, or eliminate, or combination thereof, the source. Grab samples will not provide the same level of protection because of their intermittent nature and the longer time required to obtain and then analyze the sample. 5.7x00a0;Additionally, on-line monitoring significantly reduces the potential for contamination of high-purity water samples, a significant problem when sampling and testing high-purity water. 1.1x00a0;This test method covers on-line analysis of high-purity water by the ion chromatography technique. This test method is applicable for measuring various anionic contaminants in high-purity water, typically in the range of 0.01 to 100 x03bc;g/L. This test method is used to determine the concentration of acetate, formate, chloride, fluoride, phosphate, nitrate, and sulfate in a continuously flowing sample. The range of the test method is only as good as the reagent water available for preparing standards. At extremely low concentrations, <1.0 x03bc;g/L, preparing standards is difficult, and extra care must be taken in their preparation. The sample may have to be conditioned from higher pressures and temperatures to conditions that ar......
信息：ICS：71.040.50 CCS：发布：2016 实施：

ASTM D5085-21 用抑制离子色谱法测定大气湿沉降中氯化物、硝酸盐和硫酸盐的标准试验方法
简介：
信息：ICS：07.060 CCS：发布：2021-09-01 实施：

ASTM D7328-17 用离子色谱法测定燃料乙醇中存在的和无机硫酸盐和总无机氯的标准测试方法
简介：
信息：ICS：75.160.20 CCS：发布：2017-10-01 实施：

ASTM D6508-15 使用毛细管离子电泳和铬酸盐电解质测定水性基质中溶解的无机阴离子的标准测试方法
简介：
信息：ICS：13.060.50 CCS：发布：2015-10-01 实施：

KS F 2737-2021 用指示剂测定混凝土中氯离子渗透深度的标准试验方法
简介：
信息：ICS：91.100.30 CCS：发布：2021-02-26 实施：

ASTM D8150-17 用蒸馏法测定原油中有机氯含量的标准试验方法然后用燃烧离子色谱法进行检测
简介：
信息：ICS：75.040 CCS：发布：2017-10-01 实施：

ASTM D6508-2015 使用毛细管离子电泳法和铬酸盐电解质测定水基质中溶解无机阴离子的标准试验方法
简介：5.1x00a0;Capillary ion electrophoresis provides a simultaneous separation and determination of several inorganic anions using nanolitres of sample in a single injection. All anions present in the sample matrix will be visualized yielding an anionic profile of the sample. 5.2x00a0;Analysis time is less than 5 minutes with sufficient sensitivity for drinking water and wastewater applications. Time between samplings is less than seven minutes allowing for high sample throughput. 5.3x00a0;Minimal sample preparation is necessary for drinking water and wastewater matrices. Typically, only a dilution with water is needed. 5.4x00a0;This test method is intended as an alternative to other multi-analyte methods and various wet chemistries for the determination of inorganic anions in water and wastewater. Compared to other multi-analyte methods the major benefits of CIE are speed of analysis, simplicity, and reduced reagent consumption and operating costs. 1.1x00a0;This test method covers the determination of the inorganic anions fluoride, bromide, chloride, nitrite, nitrate, ortho-phosphate, and sulfate in drinking water, wastewater, and other aqueous matrices using capillary ion electrophoresis (CIE) with indirect UV detection. See Figs. 1-6. 1.2x00a0;The test method uses a chromate-based electrolyte and indirect UV detection at 254 nm. It is applicable for the determination or inorganic anions in the range of 0.1 to 50 mg/L except for fluoride whose range is 0.1 to 25 mg/L. 1.3x00a0;It is the responsibility of the user to ensure the validity of this test method for other anion concentrations and untested aqueous matrices. Note 1:x00a0;The highest accepted anion concentration submitted for precision and bias extend the anion concentration range for the following anions: Chloride to 93 mg/L, Sulfate to 90 mg/L, Nitrate to 72 mg/L, and ortho-phosphate to 58 mg/L. 1.4x00a0;The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard. 1.5x00a0;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 9.
信息：ICS：13.060.50 CCS：发布：2015 实施：

ASTM D5794-95(2021) 通过离子色谱法测定阴极电泳渗透液中阴离子的标准指南
简介：
信息：ICS：71.040.50 CCS：发布：2021-02-01 实施：

ASTM D6919-17 通过离子色谱法测定水和废水中溶解的碱和碱性阳离子和铵的标准测试方法
简介：
信息：ICS：13.060.50 CCS：发布：2017-06-01 实施：

ASTM D5794-95(2014) 通过离子色谱法测定阴极电泳渗透液中阴离子的标准指南
简介：
信息：ICS：71.040.50 CCS：发布：2014-07-01 实施：

ASTM C1832-2021 利用热离子质谱仪改进总蒸发(MTE)法测定铀同位素成分的标准试验方法
简介：1.1?This test method describes the determination of the isotope amount ratios of uranium material as nitrate solutions by the modified total evaporation (MTE) method using a thermal ionization mass spectrometer (TIMS) instrument. 1.2?The analytical performance in the determinat
信息：ICS： CCS：F40/49 发布：2021 实施：

ASTM D5257-2017 用离子色谱法测定水中可溶六价铬的标准试验方法
简介：5.1x00a0;Hexavalent chromium salts are used extensively in the metal finishing and plating industries, in the leather industry as a tanning agent, and in the manufacture of paints, dyes, explosives, and ceramics. Trivalent chromium salts are used as mordants in textile dying, in the ceramic and glass industry, and in photography. Chromium, in either oxidation state, may be present in wastewater from these industries and may also be discharged from chromate-treated cooling waters. 5.2x00a0;Hexavalent chromium is toxic to humans, animals, and aquatic life. It can produce lung tumors when inhaled and readily induces skin sensitization. It is not known whether cancer will result from ingestion of chromium in any of its valence states. 5.3x00a0;Ion chromatography provides a means of separating the hexavalent chromium from other species present in the sample, many of which interfere with other detection methods. The combination of this separation with a sensitive colorimetric detection method provides a selective and sensitive analytical method for hexavalent chromium with minimal sample preparation. 1.1x00a0;This test method covers procedures for the determination of dissolved hexavalent chromium in wastewater, surface water, and drinking water. 1.2x00a0;The precision and bias of this test method has been tested in reagent water and industrial wastewater and has been found suitable over the range of approximately 1 to 1000 x03bc;g/L. Higher levels can be determined by appropriate dilution. 1.3x00a0;Samples containing very high levels of anionic species (that is, chloride, sulfate, etc.) may cause column overload. Samples containing high levels of reducing species (that is, sulfides, sulfites, etc.) may cause reduction of Cr(VI) to Cr(III). This can be minimized by buffering the sample to a pH of 9 to 9.5, filtering it, storing it at <6x00b0;C. A holding time of 28 days may be used if the user can demonstrate that such holding time does not affect sample integrity in accordance with U.S. EPA 40 CFR 136, Part II. 1.4x00a0;The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered standard. 1.5x00a0;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. 1.6x00a0;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：71.060.50 CCS：Z16 发布：2017 实施：

ASTM D7359-14 用氧化热水解燃烧和离子色谱检测法测定芳烃及其混合物中总氟、氯和硫的标准试验方法&40；燃烧离子色谱法
简介：
信息：ICS：71.080.20 CCS：发布：2014-07-01 实施：

ASTM D8149-20 离子色谱测定石油产品和润滑油中杂原子和阴离子的优化校准和验证的标准实践
简介：
信息：ICS：75.080 CCS：发布：2020-07-01 实施：

ASTM D7328-16 用离子色谱法测定燃料乙醇中存在的和无机硫酸盐和总无机氯的标准测试方法
简介：
信息：ICS：75.160.20 CCS：发布：2016-10-01 实施：

ASTM D7304-14 通过HPLC测定发动机冷却液中的Denatonium离子的标准测试方法
简介：
信息：ICS：71.100.45 CCS：发布：2014-03-15 实施：

ASTM D8280-20a 用离子色谱法测定塑料材料表面溴化阻燃剂绽放的标准试验方法
简介：
信息：ICS：83.060 CCS：发布：2020-04-01 实施：

ASTM D4856-11(2016) 用于测定混合纤维素酯过滤器上收集的工作场所环境中的硫酸雾的标准测试方法（离子色谱分析）
简介：
信息：ICS：13.040.30 CCS：发布：2016-10-01 实施：

ASTM D7304-2014 采用HPLC测定发动机冷却液中苯甲地那铵离子的标准试验方法
简介：4.1x00a0;This test method provides for the qualitative and quantitative determination of denatonium benzoate in engine coolant in milligrams per litre to low percent range and requires approximately 1 mL per test, with results available in less than 10 min. Denatonium benzoate is a compound composed of a quaternary ammonium cation, denatonium and an inert anion, benzoate. In solution the denatonium benzoate exists in equilibrium between the denatonium benzoate compound, the denatonium cation and benzoate anion. By slightly adjusting the pH of the solution to be more acidic (x2248; pH 4.6) the equilibrium will be shifted to the direction of forming more denatonium and benzoate ions in the solution. 1.1x00a0;This test method covers the chemical analysis of engine coolant for denatonium benzoate (DNB) by high-performance liquid chromatography (HPLC). DNB is added to potentially render engine coolant unpalatable to animals and humans. This analytical method was designed for the analysis of DNB and is not valid for any other bittering agents such as denatonium saccharide. 1.2x00a0;This test method is applicable to both new and used coolants. 1.3x00a0;Coelution of other ions may cause interferences in the detection of the denatonium cation. In the case of unfamiliar formulations, identification verification should be performed by either or both fortification and dilution of the sample matrix with denatonium ion. 1.4x00a0;The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5x00a0;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：71.100.45 (Refrigerants and antifreezes) CCS：发布：2014 实施：

ASTM D8280-20 用离子色谱法测定塑料材料表面溴化阻燃剂绽放的标准试验方法
简介：
信息：ICS：83.060 CCS：发布：2020-01-01 实施：

ASTM D8001-16e1 通过计算测定总氮总凯氏氮素的标准测试方法和水中的总磷离子色谱法测定的废水
简介：
信息：ICS：/ CCS：/ 发布：2016-07-15 实施：0000-00-00

ASTM D7359-2014 用高温氧化燃烧法和离子色谱检测法 (燃烧离子色谱法-CIC) 测定芳烃和其混合物中总氟, 氯和硫磺的标准试验方法
简介：5.1x00a0;The total fluorine, chlorine and sulfur contained in aromatic hydrocarbon matrices can contribute to emissions, be harmful to many catalytic chemical processes, and lead to corrosion. This test method can be used to determine total sulfur and halogens in aromatic hydrocarbons and their mixtures. The results can be used for compliance determinations when acceptable to a regulatory authority using performance based criteria. 1.1x00a0;This test method covers the individual determination of total fluorine, chlorine and sulfur in aromatic hydrocarbons and their mixtures. Samples containing 0.10 to 10 mg/kg of each element can be analyzed. 1.2x00a0;This method can be applied to sample concentrations outside the range of the scope by dilution of the sample in an appropriate solvent to bring the total concentrations of fluorine, chlorine and sulfur within the range covered by the test method. However, it is the responsibility of the analyst to verify the solubility of the sample in the solvent and that the diluted sample results conform to the precision and accuracy of the method. 1.2.1x00a0;Special considerations must be made in order to attain detection limits below 1.0 mg/kg in a sample. The instrument must be clean and properly maintained to address potential sources of contamination, or carryover, or both. Multiple sequential injections shall be completed until a stable background is attained. A stable background is considered to be achieved when the analysis of a minimum of three consecutive system blanks have area counts equal to or less than 5 % RSD for the anions of interest. 1.3x00a0;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. 1.4x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5x00a0;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. See Section 9.
信息：ICS：71.080.20 (Halogenated hydrocarbons) CCS：发布：2014 实施：

ASTM D4208-19 用氧容器燃烧/离子选择电极法测定煤中总氯的标准试验方法
简介：
信息：ICS：75.160.10 CCS：发布：2019-11-01 实施：

ASTM D8001-16e1 通过计算测定总氮总凯氏氮素的标准测试方法和水中的总磷离子色谱法测定的废水
简介：
信息：ICS：13.060.50 CCS：发布：2016-07-15 实施：

ASTM D5085-02(2013) 通过化学抑制离子色谱法测定大气湿沉积中氯化物硝酸盐和硫酸盐的标准测试方法
简介：
信息：ICS：07.060 CCS：发布：2013-10-01 实施：

ASTM D7148-19a 用电解液浴测量系统中的碳电极测定碱性电池分离器离子电阻率的标准试验方法
简介：
信息：ICS：29.220.30 CCS：发布：2019-11-01 实施：

ASTM D8001-16 通过计算测定总氮总凯氏氮素的标准测试方法和水中的总磷离子色谱法测定的废水
简介：
信息：ICS： CCS：发布：2016-07-15 实施：

ASTM D6832-13e1 用离子色谱法和1,5-二苯基碳酰肼分光光度法测定工作场所空气中六价铬的标准试验方法
简介：
信息：ICS：13.040.30 CCS：发布：2013-10-01 实施：

ASTM D7773-19 使用过滤取样和抑制离子色谱法测定挥发性无机酸（HCl、HBr和HNO）的标准试验方法
简介：
信息：ICS：13.040.30 CCS：发布：2019-10-01 实施：

ASTM D3561-16 通过原子吸收分光光度法测定咸水海水和盐水中锂钾和钠离子的标准测试方法
简介：
信息：ICS：13.060.50 CCS：发布：2016-06-01 实施：

ASTM D6832-13 用离子色谱法和1,5-二苯基碳酰肼分光光度法测定工作场所空气中六价铬的标准试验方法
简介：
信息：ICS：13.040.30 CCS：发布：2013-10-01 实施：

ASTM D8234-19 用串联抑制电导和紫外检测的离子色谱法测定高离子水中阴离子的标准试验方法
简介：
信息：ICS：13.060.50 CCS：发布：2019-07-01 实施：

ASTM E1787-16 通过离子色谱法测定苛性钠和苛性钾（氢氧化钠和氢氧化钾）阴离子的标准测试方法
简介：
信息：ICS：71.040.50 CCS：发布：2016-05-15 实施：

ASTM D7328-13 用离子色谱法测定燃料乙醇中存在的和无机硫酸盐和总无机氯的标准测试方法
简介：
信息：ICS：75.160.20 CCS：发布：2013-09-15 实施：

ASTM D7148-19 用电解液浴测量系统中的碳电极测定碱性电池分离器离子电阻率的标准试验方法
简介：
信息：ICS：29.220.30 CCS：发布：2019-03-01 实施：

ASTM D7304-16 通过HPLC测定发动机冷却液中的Denatonium离子的标准测试方法
简介：
信息：ICS：71.100.45 CCS：发布：2016-05-15 实施：

ASTM D7363-13a 使用固相微萃取和气相色谱/质谱法在选定的离子监测模式下测定沉积物孔隙中的亲本和烷基多环芳烃的标准测试方法
简介：
信息：ICS：13.080.10 CCS：发布：2013-05-17 实施：

ASTM D8247-19 用氧化还原燃烧法和离子色谱法测定煤中总氟和总氯的标准试验方法
简介：
信息：ICS：73.040 CCS：发布：2019-02-01 实施：

ASTM D5996-16 通过在线离子色谱法测定高纯度水中阴离子污染物的标准测试方法
简介：
信息：ICS：71.040.50 CCS：发布：2016-02-15 实施：

ASTM F83-71(2013) 电子发射体热离子常数的定义和测定的标准操作规程
简介：
信息：ICS：01.040.31 CCS：发布：2013-05-01 实施：

ASTM D4208-18 用氧容器燃烧/离子选择电极法测定煤中总氯的标准试验方法
简介：
信息：ICS：75.160.10 CCS：发布：2018-12-15 实施：

ASTM E2469-16 通过离子色谱法测定单 - 二 - 和三 - 乙二醇中氯化物的标准测试方法
简介：
信息：ICS：71.040.40 CCS：发布：2016-01-01 实施：

ASTM D7319-13 通过直接注射抑制离子色谱法测定燃料乙醇和丁醇中存在的和潜在的硫酸盐和无机氯的标准测试方法
简介：
信息：ICS：71.040.50 CCS：发布：2013-05-01 实施：

ASTM D6832-13(2018) 用离子色谱法和1,5-二苯基碳酰肼分光光度法测定工作场所空气中六价铬的标准试验方法
简介：
信息：ICS：13.040.30 CCS：发布：2018-12-01 实施：

ASTM C1832-2016 利用热离子质谱仪的改进总蒸发 (MTE) 法测定铀同位素成分的标准试验方法
简介：5.1x00a0;Uranium material is used as a fuel in certain types of nuclear reactors. To be suitable for use as nuclear fuel, the starting material shall meet certain specifications such as those described in Specifications C753, C776, C787, C833, C967, C996, and C1008, or as specified by the purchaser. The isotope amount ratios of uranium material can be measured by mass spectrometry following this test method to ensure that they meet the specification. 5.2x00a0;The MTE method can be used for a wide range of sample sizes even in samples containing as low as 50 x03bc;g of uranium. If the uranium sample is in the form of uranium hexafluoride, it can be converted into a uranium nitrate solution for measurement by the MTE method. The concentration of the loading solution for MTE has to be in the range of 1 to 6 mg/g to allow a sample loading of 2 to 6 x03bc;g of uranium. A minimum loading of 3 x03bc;g uranium per filament is recommended. This is needed to have a suitable ion signal especially for the two minor isotopes (234U and 236U) thus enabling the internal calibration of SEM versus the Faraday cups during the measurement. 5.3x00a0;Until now, the instrument capabilities for the MTE method have only been implemented on the TRITONx2122; TIMS instrument.5 Therefore all recommendations for measurement parameters in this test method are specified for the TRITONx2122; TIMS instrument. The manufacturers of other TIMS instruments (for example, IsotopX and Nu Instruments) have plans to implement the modifications needed in their instruments to use the MTE method. 5.4x00a0;The MTE method described here can also be extended to measurement of elements other than uranium. Note that the MTE method has already been implemented for plutonium and calcium. 1.1x00a0;This test method describes the determination of the isotope amount ratios of uranium material as nitrate solutions by the modified total evaporation (MTE) method using a thermal ionization mass spectrometer (TIMS) instrument. 1.2x00a0;The analytical performance in the determination of the 235U/238U major isotope amount ratio by MTE is similar to the (x201c;classicalx201d;) total evaporation (TE) method as described in Test Method C1672. However, in the MTE method, the evaporation process is interrupted on a regular basis to allow measurements and subsequent corrections for background form peak tailing, perform internal calibration of a secondary electron multiplier (SEM) detector versus the Faraday cups, peak centering, and ion source refocusing. Performing these calibrations and corrections on a regular basis during the measurement, improves precision, and significantly reduces uncertainties for the minor isotope amount ratios 234U/238U and 236U/238U as compared to the TE method. 1.3x00a0;In principle, the MTE method yields major isotope amount ratios without the......
信息：ICS： CCS：发布：2016 实施：

ASTM D7363-13 使用固相微萃取和气相色谱/质谱法在选定的离子监测模式下测定沉积物孔隙中的亲本和烷基多环芳烃的标准测试方法
简介：
信息：ICS：13.080.10 CCS：发布：2013-03-15 实施：

ASTM D6581-18 用抑制离子色谱法测定饮用水中溴酸盐溴化物氯酸盐和亚氯酸盐的标准试验方法
简介：
信息：ICS：13.060.50 CCS：发布：2018-05-01 实施：

ASTM D4208-13 氧气炸弹燃烧/离子选择电极法测定煤中总氯的标准试验方法
简介：
信息：ICS：75.160.10 CCS：发布：2013-01-01 实施：

ASTM F83-71(2018) 电子发射体热离子常数的定义和测定的标准操作规程
简介：
信息：ICS：01.040.31 CCS：发布：2018-03-01 实施：

ASTM D7304-2016 采用高效液相色谱法测定发动机冷却剂中的地那铵离子的标准试验方法
简介：4.1x00a0;This test method provides for the qualitative and quantitative determination of denatonium benzoate in engine coolant in milligrams per litre to low percent range and requires approximately 1 mL per test, with results available in less than 10 min. Denatonium benzoate is a compound composed of a quaternary ammonium cation, denatonium and an inert anion, benzoate. In solution the denatonium benzoate exists in equilibrium between the denatonium benzoate compound, the denatonium cation and benzoate anion. By slightly adjusting the pH of the solution to be more acidic (x2248; pH 4.6) the equilibrium will be shifted to the direction of forming more denatonium and benzoate ions in the solution. 1.1x00a0;This test method covers the chemical analysis of engine coolant for denatonium benzoate (DNB) by high-performance liquid chromatography (HPLC). DNB is added to potentially render engine coolant unpalatable to animals and humans. This analytical method was designed for the analysis of DNB and is not valid for any other bittering agents such as denatonium saccharide. 1.2x00a0;This test method is applicable to both new and used coolants. 1.3x00a0;Coelution of other ions may cause interferences in the detection of the denatonium cation. In the case of unfamiliar formulations, identification verification should be performed by either or both fortification and dilution of the sample matrix with denatonium ion. 1.4x00a0;The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.5x00a0;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：71.100.45 CCS：发布：2016 实施：

ASTM D7363-2013a 在选定的离子监控模式下用固相微萃取法和气相色谱/质谱法测定沉积物孔隙水中母体芳烃和烷基多环芳烃的标准试验方法
简介：5.1x00a0;This method directly determines the concentrations of dissolved PAH concentrations in environmental sediment pore water samples. The method is important from an environmental regulatory perspective because it can achieve the analytical sensitivities to meet the goals of the USEPA narcosis model for protecting benthic organisms in PAH contaminated sediments. Regulatory methods using solvent extraction have not achieved the wide calibration ranges from nanograms to milligrams per litre and the required levels of detection in the nanogram-per-litre range. In addition, conventional solvent extraction methods require large aliquot volumes (litre or larger), use of large volumes of organic solvents, and filtration to generate the pore water. This approach entails the storage and processing of large volumes of sediment samples and loss of low molecular weight PAHs in the filtration and solvent evaporation steps. 5.2x00a0;This method can be used to determine nanogram to milligram per litre PAH concentrations in pore water. Small volumes of pore water are required for SPME extraction, only 1.5 mL per determination and virtually no solvent extraction waste is generated. 1.1x00a0;The U.S. Environmental Protection Agency (USEPA) narcosis model for benthic organisms in sediments contaminated with polycyclic aromatic hydrocarbons (PAHs) is based on the concentrations of dissolved PAHs in the interstitial water or x201c;pore waterx201d; in sediment. This test method covers the separation of pore water from PAH-impacted sediment samples, the removal of colloids, and the subsequent measurement of dissolved concentrations of the required 10 parent PAHs and 14 groups of alkylated daughter PAHs in the pore water samples. The x201c;24 PAHsx201d; are determined using solid-phase microextraction (SPME) followed by Gas Chromatography/Mass Spectrometry (GC/MS) analysis in selected ion monitoring (SIM) mode. Isotopically labeled analogs of the target compounds are introduced prior to the extraction, and are used as quantification references. 1.2x00a0;Lower molecular weight PAHs are more water soluble than higher molecular weight PAHs. Therefore, USEPA-regulated PAH concentrations in pore water samples vary widely due to differing saturation water solubilities that range from 0.2 x00b5;g/L for indeno[1,2,3-cd]pyrene to 318201;000 x00b5;g/L for naphthalene. This method can accommodate the measurement of microgram per litre concentrations for low molecular weight PAHs and nanogram per litre concentrations for high molecular weight PAHs. 1.3x00a0;The USEPA narcosis model predicts toxicity to benthic organisms if the sum of the toxic units (x03a3;TUc) calculated for all x201c;34 PAHsx201d; measured in a pore water sample is greater than or equal to 1. For this reason, the performance limit required for the individual PAH measurements was defined as the concentration of an individual PAH that would yield 1/34x00a0;of a toxic unit (TU). However, the focus of this method is the 10 parent PAHs and 14 groups of alkylated PAHs (Table 1) that contribute 958201;% of the toxic units based on the analysis of 120 background and impacted sediment pore water samples.3 The primary reasons for eliminating the rest of the 5-6 ring parent PAHs are: (1) these PAHs contribute insignificantly to the pore water TU, and (2) these PAHs exhibit extremely low saturation solubilities that will make the det......
信息：ICS：13.080.10 (Chemical characteristics of soil) CCS：发布：2013 实施：