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同位素丰度比相关标准参考信息

GB/T 37848-2019 水中锶同位素丰度比的测定
简介:
信息:ICS:13.280 CCS:N50 发布:2019-08-30 实施:2020-03-01 00:00:00.0

ASTM C1625-12 通过热离子化质谱法测定铀和钚浓度和同位素丰度的标准测试方法
简介:
信息:ICS:27.120.30 CCS发布:2012-06-01 实施

ASTM E267-1990(1995) 铀和钚的浓度和同位素丰度的测试方法
简介:1.1 This test method is applicable to the determination of uranium (U) and plutonium (Pu) concentrations and their isotopic abundances (Note 1) in solutions which result from the dissolution of nuclear reactor fuels either before or after irradiation. A minimum sample size of 50 [mu]g of irradiated U will contain sufficient Pu for measurement and will minimize the effects of cross contamination by environment U. Note 18212;The isotopic abundance of Pu can be determined by this test method; however, interference from U may be encountered. This interference may be due to (1) inadequate chemical separation of uranium and plutonium, (2) uranium contamination within the mass spectrometer, and (3) uranium contamination in the filament. One indication of uranium contamination is a changing 238/239 ratio during the mass spectrometer run, in which case, a meaningful Pu analysis cannot be obtained on that run. If inadequate separation is the problem, a second pass through the separation may remove the uranium. If contamination in the mass spectrometer or on the filaments is the problem, use of a larger sample, for example, 1 956;g, on the filament may ease the problem. A recommended alternative method of determining Pu isotopic abundance without U interference is alpha spectroscopy using Practice D3084. The Pu abundance should be obtained by determining the ratio of alpha particle activity of Pu to the sum of the activities of Pu and Pu. (1) The contribution of Pu and Pu to the alpha activity differs from their isotopic abundances due to different specific activities. 1.2 The procedure is applicable to dissolver solutions of uranium fuels containing plutonium, aluminum, stainless steel, or zirconium. Interference from other alloying constituents has not been investigated and no provision has been made in the test method for fuels used in the Th U fuel cycle. 1.3 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:ICSCCS:F46 发布:1990 实施

GB/T 37848-2019 水中锶同位素丰度比的测定
简介:
信息:ICS:13.280 CCS:N50 发布:2019-08-30 实施:2020-03-01 00:00:00.0

ASTM C1625-2012 用热电离质谱法测定铀和钚浓度和其同位素丰度的标准试验方法
简介:Uranium and plutonium oxides can be used as a nuclear-reactor fuel in the form of pellets. In order to be suitable for use as a nuclear fuel the starting material must meet certain specifications, such as found in Specifications C757, C833, C753, C776, C1008, or as specified by the purchaser. The uranium and/or plutonium concentration and isotopic abundances are measured by mass spectrometry following this test method. The separated heavy element fractions placed on mass spectrometric filaments must be very pure. The quantity required depends upon the sensitivity of the instrument detection system. If an electron multiplier detector is to be used, only a few nanograms are required. If a Faraday cup is used, a few micrograms are needed. Chemical purity of the sample becomes more important as the sample size decreases, because ion emission of the sample is suppressed by impurities.1.1 This test method covers the determination of the concentration and isotopic composition of uranium and plutonium in solutions. The purified uranium or plutonium from samples ranging from nuclear materials to environmental or bioassay matrices is loaded onto a mass spectrometric filament. The isotopic ratio is determined by thermal ionization mass spectrometry, the concentration is determined by isotope dilution. 1.2 The values stated in SI units are to be regarded as the standard. Values in parentheses are for information only. 1.3 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 safety and health practices and determine the applicability of regulatory limitations prior to use.
信息:ICS:27.120.30 (Fissile materials and nuclear fuel tech CCS:F46 发布:2012 实施

简介: 信息:

GB/T 31231-2014 水中锌、铅同位素丰度比的测定 多接收电感耦合等离子体质谱法
简介:本标准规定了多接收电感耦合等离子体质谱法分别测定水中锌、铅同位素丰度比的方法。本标准适用于经过化学提纯后转化为硝酸水溶液的锌、铅天然同位素丰度样品的测定,样品的检测范围为锌含量5 ng/g~3 000 ng/g、铅含量0.5 ng/g~500 ng/g。
信息:ICS:71.040 CCS:N04 发布:2014-09-30 实施:2015-04-15

ASTM C1477-08 通过多集电极 电感耦合等离子体质谱法对六氟化铀和硝酸铀溶液进行同位素丰度分析的标准测试方法
简介:
信息:ICS:27.120.30 CCS发布:2008-06-01 实施

简介: 信息:

ASTM C1477-19 通过多集电极 电感耦合等离子体质谱法对六氟化铀和硝酸铀溶液进行同位素丰度分析的标准测试方法
简介:
信息:ICS:27.120.30 CCS发布:2019-11-01 实施

EJ/T 1212.2-2008 烧结氧化钆-二氧化铀芯块分析方法.第2部分:热电离质谱法测定铀同位素丰度
简介:本部分规定了烧结氧化钆-二氧化铀芯块中热电离质谱法测定铀同位素丰度的试剂和材料、仪器设备、试样制备、分析步骤、结果计算及方法精密度。本部分适用于氧化钆质量分数最大值为12%的烧结GdO-UO芯块中铀同位素丰度的测定。本部分测定U摩尔丰度范围为1%~10%。
信息:ICS:27.120.30 CCS:F46 发布:2008-03-17 实施:2008-10-01

简介: 信息:

DB 15/T 1705-2019 锡林郭勒羊肉同位素丰度值检测方法
简介:本标准规定了“锡林郭勒羊肉”中碳、氮同位素丰度比检测原理、仪器、设备与试剂和方法。本标准适用于“锡林郭勒羊肉”中碳、氮同位素丰度比的测定。
信息:ICSCCS发布:2019-10-25 实施:2020-01-25

ASTM C1477-2008(2014) 多收集器感应耦合等离子质谱法分析六氟化铀和硝酸铀酰溶液同位素丰度的标准试验方法
简介:5.1x00a0;The test method is capable of measuring uranium isotopic abundances of8201;234U,8201;235U,8201; 236U and8201;238U as required by Specifications C787 and C996. 1.1x00a0;This test method covers the isotopic abundance analysis of8201;234U,8201;235U,8201;236 U and8201;238U in samples of hydrolysed uranium hexafluoride (UF6) by inductively coupled plasma source, multicollector, mass spectrometry (ICP-MC-MS). The method applies to material with8201; 235U abundance in the range of 0.2 to 68201;% mass. This test method is also described in ASTM STP 1344. 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.
信息:ICS:27.120.30 (Fissile materials and nuclear fuel tech CCS发布:2008 实施

简介: 信息:

DB15/T 1705-2019 “锡林郭勒羊肉”同位素丰度值检测方法
简介:
信息:ICS:67.120.10 CCS:X 22 发布:2019-10-25 实施:2020-01-25

ASTM C1477-2008 多收集器感应耦合等离子质谱法分析六氟化铀和硝酸铀酰溶液同位素丰度的标准试验方法
简介:The test method is capable of measuring uranium isotopic abundances of 234U, 235U, 236U and 238U as required by Specifications C 787 and C 996.1.1 This test method covers the isotopic abundance analysis of 234U, 235U, 236U and 238U in samples of hydrolysed uranium hexafluoride (UF6) by inductively coupled plasma source, multicollector, mass spectrometry (ICP-MC-MS). The method applies to material with 235U abundance in the range of 0.2 to 6 % mass. This test method is also described in ASTM STP 1344. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.3 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:27.120.30 (Fissile materials and nuclear fuel tech CCS:F46 发布:2008 实施

简介: 信息:

ASTM C1625-19 通过热离子化质谱法测定铀和钚浓度和同位素丰度的标准测试方法
简介:
信息:ICS:27.120.30 CCS发布:2019-09-15 实施

ASTM C1477-06 通过多集电极 电感耦合等离子体质谱法对六氟化铀和硝酸铀溶液进行同位素丰度分析的标准测试方法
简介:
信息:ICS:27.120.30 CCS发布:2006-07-01 实施

简介: 信息:

ASTM C1415-18 α光谱法测定238钚同位素丰度的标准试验方法
简介:
信息:ICS:71.060.10 CCS发布:2018-06-01 实施

ASTM C1477-2006 多收集器感应耦合等离子质谱法分析六氟化铀和硝酸铀酰溶液同位素丰度的标准试验方法
简介:The test method is capable of measuring uranium isotopic abundances of 234U, 235U, 236U and 238U as required by Specifications C 787 and C 996.1.1 This test method covers the isotopic abundance analysis of 234U, 235U, 236U and 238U in samples of hydrolysed uranium hexafluoride (UF6) by inductively coupled plasma source, multi-collector, mass spectrometry (ICP-MC-MS). The method applies to material with 235U abundance in the range of 0.2 to 6 % mass. This test method is also described in ASTM STP 1344.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:27.120.30 (Fissile materials and nuclear fuel tech CCS:F80 发布:2006 实施

简介: 信息:

HG/T 5170-2017 稳定同位素氘标记试剂卤代苯的同位素丰度测定 气相色谱-质谱联用法
简介:
信息:ICS:71.040.99 CCS:G60 发布:2017-11-07 实施:2018-04-01

ASTM C1625-05 通过热离子化质谱法测定铀和钚浓度和同位素丰度的标准测试方法
简介:
信息:ICS:27.120.30 CCS发布:2005-06-01 实施

简介: 信息:

EJ/T 973-2016 二氧化铀粉末和芯块中铀同位素丰度的热电离质谱法测定
简介:
信息:ICS:27.120.01 CCS:F50 发布:2016-12-14 实施:0000-00-00

ASTM C1625-2005 用热电离质谱法进行铀和钚浓度和同位素丰度的标准试验方法
简介:Uranium and plutonium oxides can be used as a nuclear-reactor fuel in the form of pellets. In order to be suitable for use as a nuclear fuel the starting material must meet certain specifications, such as found in C 757, C 833, C 753, C 776, C 1008, or as specified by the purchaser. The uranium and/or plutonium concentration and isotopic abundances are measured by mass spectrometry following this test method. The separated heavy element fractions placed on mass spectrometric filaments must be very pure. The quantity required depends upon the sensitivity of the instrument detection system. If an electron multiplier detector is to be used, only a few nanograms are required. If a Faraday cup is used, a few micrograms are needed. Chemical purity of the sample becomes more important as the sample size decreases, because ion emission of the sample is suppressed by impurities.1.1 This test method covers the determination of the concentration and isotopic composition of uranium and plutonium in solutions. The purified uranium or plutonium from samples ranging from nuclear materials to environmental or bioassay matrices is loaded onto a mass spectrometric filament. The isotopic ratio is determined by thermal ionization mass spectrometry, the concentration is determined by isotope dilution.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 safety and health practices and determine the applicability of regulatory limitations prior to use.
信息:ICS:27.120.30 (Fissile materials and nuclear fuel tech CCS:F46 发布:2005 实施

简介: 信息:

EJ/T 973-2016 二氧化铀粉末和芯块中铀同位素丰度的测定 热电离质谱法
简介:
信息:ICS:27.120.30 CCS:F48 发布:2016-12-14 实施:2017-03-01

ASTM C1415-01a(2007) α光谱法测定238钚同位素丰度的标准试验方法
简介:
信息:ICS:71.060.10 CCS发布:2001-02-10 实施

简介: 信息:

DB15/T 975-2016 畜产品牛羊肉中碳、氮同位素丰度比检测方法
简介:
信息:ICS:67.120.10 CCS:X 22 发布:2016-03-20 实施:2016-06-20

ASTM C1415-99 α光谱法测定238钚同位素丰度的标准试验方法
简介:
信息:ICS:71.060.10 CCS发布:2001-02-10 实施

简介: 信息:

ASTM C1816-16 在同位素丰度和含量分析之前 含有铀 Americ和钚的小体积样品离子交换分离的标准实践
简介:
信息:ICS:27.120.30 CCS发布:2016-01-15 实施

ASTM C1415-01 α光谱法测定238钚同位素丰度的标准试验方法
简介:
信息:ICS:71.060.10 CCS发布:2001-02-10 实施

简介: 信息:

ASTM C1816-2016 同位素丰度和含量分析前对含铀, 镅和钚的小容量样本进行离子交换分离的标准实施规程
简介:5.1x00a0;Uranium and plutonium are used in nuclear reactor fuel and must be analyzed to ensure that they meet acceptance criteria for isotopic composition as described in Specifications C833 and C1008. The criteria are set by mutual agreement between the manufacturer and end user (or between buyer and seller). This standard practice is used to separate chemically the isobaric interferences from 238U and 238Pu and from 241Am and 241Pu, and from other impurities prior to isotopic abundance determination by TIMS. 5.2x00a0;In facilities where perchloric acid use is authorized, the separation in Test Method C698 may be used prior to isotopic abundance determination. Uranium and plutonium content as well as isotopic abundances using TIMS can be determined by using this separation practice and by following Test Methods C698, C1625, or C1672. 1.1x00a0;This practice is an alternative to Practice C1411 for the ion exchange separation in small mass samples (~5 x03bc;g of plutonium and up to 0.5 mg of uranium in 1 mL of solution) of uranium and plutonium from each other and from other impurities for subsequent isotopic abundance and content analysis by thermal ionization mass spectrometry (TIMS). In addition to being adapted to smaller sample sizes, this practice also avoids the use of hydrochloric acid (HCl) and hydrofluoric acid (HF) and does not require the use of two anion exchange columns as required in Practice C1411. 1.2x00a0;In chemically unseparated samples isobaric nuclides at mass 238 (238U and 238Pu), and mass 241 (241Pu and 241Am) will be measured together thus compromising the accuracy of the results of isotopic composition of Pu. Therefore, chemical separation of elements is essential prior to isotopic analyses. Concentrations and volumes given in the paragraphs below can be modified for larger sample sizes, different types of anion exchange resin, etc. 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:ICSCCS发布:2016 实施

ASTM C1415-2001 用α能谱测定法测定钚-238同位素丰度的标准试验方法
简介:1.1 This test method covers the use of alpha spectrometry for determining the 238Pu isotopic abundance in plutonium samples. It is particularly useful for samples in which the 238Pu content is less than 1% of the total plutonium content. For such samples, mass spectrometric results are less reliable than those from alpha spectrometry because of interference from any 238U isobar remaining after ion exchange. 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.
信息:ICS:71.060.10 (Chemical elements) CCS:F80 发布:2001 实施

简介: 信息:

ASTM C1816-15 在同位素丰度和含量分析之前 含有铀 Americ和钚的小体积样品离子交换分离的标准实践
简介:
信息:ICS:27.120.30 CCS发布:2015-06-01 实施

ASTM C1415-2001a(2007) 用α能谱测定法测定钚-238同位素丰度的标准试验方法
简介:This test method is used when the determined of 238Pu isotopic abundance is required for plutonium samples.1.1 This test method covers the use of alpha spectrometry for determining the 238Pu isotopic abundance in plutonium samples. It is particularly useful for samples in which the 238Pu content is less than 1 % of the total plutonium content. For such samples, mass spectrometric results are less reliable than those from alpha spectrometry because of interference from any 238U isobar remaining after ion exchange.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.
信息:ICS:71.060.10 (Chemical elements) CCS:F80 发布:2001 实施

简介: 信息:

JJF 1508-2015 同位素丰度测量基准方法
简介:同位素丰度测量基准方法适用于使用电感耦合等离子体质谱仪(ICP-MS)、热电离质谱仪(TIMS)、同位素比质谱仪(IRMS)等类型质谱仪器准确测量元素的同位素丰度、组成或同位素比值。
信息:ICSCCS:N54 发布:2015-01-30 实施:2015-04-30

ASTM C1477-00 用多收集器感应耦合等离子体质谱法分析六氟化铀同位素丰度的标准试验方法
简介:
信息:ICS:27.120.30 CCS发布:2000-06-10 实施

简介: 信息:

ASTM C1816-2015 同位素丰度和含量分析前对含铀, 镅和钚的小容量样本进行离子交换分离的标准实施规程
简介:5.1x00a0;Uranium and plutonium are used in nuclear reactor fuel and must be analyzed to ensure that they meet acceptance criteria for isotopic composition as described in Specifications C833 and C1008. The criteria are set by mutual agreement between the manufacturer and end user (or between buyer and seller). This standard practice is used to separate chemically the isobaric interferences from 238U and 238Pu and from 241Am and 241Pu, and from other impurities prior to isotopic abundance determination by TIMS. 5.2x00a0;In facilities where perchloric acid use is authorized, the separation in Test Method C698 may be used prior to isotopic abundance determination. Uranium and plutonium content as well as isotopic abundances using TIMS can be determined by using this separation practice and by following Test Methods C698, C1625, or C1672. 1.1x00a0;This practice is an alternative to Practice C1411 for the ion exchange separation in small mass samples (~5 x03bc;g of plutonium and up to 0.5 mg of uranium in 1 mL of solution) of uranium and plutonium from each other and from other impurities for subsequent isotopic abundance and content analysis by thermal ionization mass spectrometry (TIMS). In addition to being adapted to smaller sample sizes, this practice also avoids the use of hydrochloric acid (HCl) and hydrofluoric acid (HF) and does not require the use of two anion exchange columns as required in Practice C1411. 1.2x00a0;In chemically unseparated samples isobaric nuclides at mass 238 (238U and 238Pu), and mass 241 (241Pu and 241Am) will be measured together thus compromising the accuracy of the results of isotopic composition of Pu. Therefore, chemical separation of elements is essential prior to isotopic analyses. Concentrations and volumes given in the paragraphs below can be modified for larger sample sizes, different types of anion exchange resin, etc. 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:ICSCCS发布:2015 实施

ASTM C1477-2000 多收集器感应耦合等离子质谱法分析六氟化铀同位素丰度的标准试验方法
简介:1.1 This test method covers the isotopic abundance analysis or 234U, 235U and 238U in samples of hydrolysed uranium hexafluoride (UF6) by inductively coupled plasma source, multi-collector, mass spectrometry (ICP-MC-MS). This test method is also describe in ASTM STP 1344. 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.
信息:ICS:27.120.30 (Fissile materials and nuclear fuel tech CCS:F80 发布:2000 实施

简介: 信息:

ASTM C1415-14 α光谱法测定238钚同位素丰度的标准试验方法
简介:
信息:ICS:71.060.10 CCS发布:2014-06-01 实施

ASTM C1415-1999 用α能谱测定法测定钚-238同位素丰度的标准试验方法
简介:1.1 This test method covers the use of alpha spectrometry for determining the 238Pu isotopic abundance in plutonium samples. It is particularly useful for samples in which the 238Pu content is less than 1% of the total plutonium content. For such samples, mass spectrometric results are less reliable than those from alpha spectrometry because of interference from any 238U isobar remaining after ion exchange. 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.
信息:ICS:71.060.10 (Chemical elements) CCS:F80 发布:1999 实施

简介: 信息:

ASTM C1477-08(2014) 通过多集电极 电感耦合等离子体质谱法对六氟化铀和硝酸铀溶液进行同位素丰度分析的标准测试方法
简介:
信息:ICS:27.120.30 CCS发布:2014-01-01 实施

EJ/T 973-1995 二氧化铀粉末和芯块中铀同位素丰度的热电离质谱法测定
简介:
信息:ICS:27.120.01 CCS:F50 发布:1995-07-05 实施:1995-11-01

简介: 信息:

ASTM C1415-2014 用阿尔法光谱测定法测定钚-238同位素丰度的标准试验方法
简介:5.1x00a0;This test method is used when the determination of 238Pu isotopic abundance is required for plutonium samples. 1.1x00a0;This test method covers the use of alpha spectrometry for determining the 238Pu isotopic abundance in plutonium samples. It is particularly useful for samples in which the 238Pu content is less than 18201;% of the total plutonium content. For such samples, mass spectrometric results are vulnerable to bias because of potential interference from any 238U isobar remaining after ion exchange. 1.2x00a0;The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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.
信息:ICS:71.060.10 (Chemical elements) CCS发布:2014 实施

ASTM E267-90(1995) 铀和钚浓度和同位素丰度的标准试验方法
简介:
信息:ICSCCS发布:1990-05-27 实施

简介: 信息:

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