H67 放射性金属及其合金 标准查询与下载



共找到 10 条与 放射性金属及其合金 相关的标准,共 1

이 표준은 주로 철강 및 비철 합금의 제조에 사용하는 합금 성분 첨가제인 금속 망가니즈에

Manganese metal

ICS
77.100;77.120.10
CCS
H67
发布
2011-07-22
实施
2011-07-22

이 표준은 주로 철강 및 비철 합금의 제조에 사용하는 합금 성분 첨가제인 금속 망가니즈에

Manganese metal

ICS
77.100;77.120.10
CCS
H67
发布
2011-07-22
实施
2011-07-22

이 표준은 지르코늄 분말 야금 제품 및 합금 그리고 그 밖의 산업 용도로 사용되는 평균 입

Zirconium powder

ICS
77.120.70
CCS
H67
发布
2009-10-05
实施
2009-10-05

This translation has been made based on the Amendment to the origi- nal Japanese Industrial Standard revised by the Minister of Economy, Trade and Industry through deliberations at the Japanese Industrial Standards Committee as the result of proposal for revision of Japanese Industrial Standard with the draft being attached, based on the provi- sion of Article 12 Clause 1 of the Industrial Standardization Law ap- plicable to the case of revision by the provision of Article 14. Consequently, JIS H 4541:1997 is partially replaced with this Amend- ment.

Dumet wires (Amendment 1)

ICS
29.060.10
CCS
H67
发布
2009-02-20
实施
2009-02-20

The determination of actinides by alpha spectrometry is an essential function of many environmental programs. Alpha spectrometry allows the identification and quantification of most alpha-emitting actinides. Although numerous separation methods are used, the final sample preparation technique has historically been by electrodeposition. However, electrodeposition may have some drawbacks, such as time required, incompatibility with prior chemistry, thick deposits, and low recoveries. These problems may be minimized using the neodymium fluoride method. The sample mounting technique described in this practice is rapid, adds an additional purification step, since only those elements that form insoluble fluorides are mounted, and the sample and filter media can be dissolved and remounted if problems occur. The recoveries are better and resolution approaches normal electrodeposited samples. Recoveries are sufficiently high that for survey work, if quantitative recoveries are not necessary, tracers can be omitted. Drawbacks to this technique include use of very hazardous hydrofluoric acid and the possibility of a non-reproducible and ill-defined counting geometry from filters that are not flat. Also, although the total turn around time for coprecipitation may be less than for electrodeposition, coprecipitation requires more time and attention from the analyst.1.1 This practice covers the preparation of separated fractions of actinides for alpha spectrometry as an alternate to electrodeposition. It is applicable to any of the actinides that can be dissolved in dilute hydrochloric acid. Examples of applicable samples would be the final elution from an ion exchange separation or the final strip from a solvent extraction separation. 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. For a specific hazard statement, see Section 9.

Standard Practice for Mounting Actinides for Alpha Spectrometry Using Neodymium Fluoride

ICS
71.040.50 (Physicochemical methods of analysis)
CCS
H67
发布
2008
实施

1.1 This Test Method covers the determination of 58 trace elements in plutonium (Pu) metal. The Pu sample is dissolved in acid, and the concentration of the trace impurities are determined by Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS).1.2 This Test Method is specific for the determination of trace impurities in Pu metal. It may be applied to other types of Pu materials, such as Pu oxides, if the samples are dissolved and oxidized to the Pu(IV) state. However, it is the responsibility of the user to evaluate the performance of other matrices.This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this method to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use of this standard.

Standard Test Method for the Determination of Impurities in Plutonium Metal: Acid Digestion and Inductively Coupled Plasma-Mass Spectroscopy (ICP-MS) Analysis

ICS
71.060.10 (Chemical elements)
CCS
H67
发布
2006
实施

The determination of actinides by alpha spectrometry is an essential function of many environmental programs. Alpha spectrometry allows the identification and quantification of most alpha-emitting actinides. Although numerous separation methods are used, the final sample preparation technique has historically been by electrodeposition. However, electrodeposition may have some drawbacks, such as time required, incompatibility with prior chemistry, thick deposits, and low recoveries. These problems can be minimized using the neodymium fluoride method. The sample mounting technique described in this practice is rapid, adds an additional purification step, since only those elements that form insoluble fluorides are mounted, and the sample and filter media can be dissolved and remounted if problems occur. The recoveries are better and resolution approaches normal electrodeposited samples. Recoveries are sufficiently high that for survey work, if quantitative recoveries are not necessary, tracers can be omitted. Drawbacks to this technique include use of very hazardous hydrofluoric acid and the possibility of a non-reproducible and ill-defined counting geometry from filters that are not flat. Also, although the total turn around time for coprecipitation may be less than for electrodeposition, coprecipitation required more time and attention from the analyst.1.1 This practice covers the preparation of separated fractions of actinides for alpha spectrometry as an alternate to electrodeposition. It is applicable to any of the actinides that can be dissolved in dilute hydrochloric acid. Examples of applicable samples would be the final elution from an ion exchange separation or the final strip from a solvent extraction separation.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. For a specific hazard statement, see Section 8.

Standard Practice for Mounting Actinides for Alpha Spectrometry Using Neodymium Fluoride

ICS
71.040.50 (Physicochemical methods of analysis)
CCS
H67
发布
2003
实施

1.1 This test method covers the preparation of separated fractions of actinides for alpha spectrometry as an alternate to electrodeposition. It is applicable to any of the actinides that can be dissolved in dilute hydrochloric acid. Examples of applicable samples would be the final elution from an ion exchange separation or the final strip from a solvent extraction separation. 1.2 This standard does not purport to address all of the safety problems, 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 a specific hazard statement, see Section 8.

Standard Test Method for Mounting Actinides for Alpha Spectrometry Using Neodymium Fluoride

ICS
71.040.50 (Physicochemical methods of analysis)
CCS
H67
发布
1998
实施

この規格は,電子管,電球,放電ランプ及びダィオード,サーミスタなどの半導体デバイスの軟質ガラス封入部に用いるジュメット線〔以下,線という。)について規定する。

Dumet wires

ICS
29.060.10
CCS
H67
发布
1997-05-20
实施

1.1 This specification defines the physical and chemical requirements for hafnium oxide powder intended for fabrication into shapes for use in a nuclear reactor core. 1.2 The material described herein shall be particulate in nature. 1.3 The values stated in SI units are to be regarded as the standard.

Standard Specification for Nuclear-Grade Hafnium Oxide Powder

ICS
27.120.30;71.060.20
CCS
H67
发布
1993
实施



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