核级碳化硼检测

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GB/T 23807-2009精细陶瓷分类系统

本标准规定了精细陶瓷的分类。该系统包括陶瓷粉料前驱体、粉末、陶粒、纤维、晶须、片晶、单晶、多晶、非晶态(玻璃)材料，及复合材料、陶瓷薄膜、涂层。该分类系统将构成标准的核心。分类系统不包含以下：a 碳材料，除某些特殊陶瓷如金刚石、玻璃碳或者化学气相沉积石墨以外；b 硅材料，锗元素以及其他半金属材料，但它们作为精细陶瓷组成或前驱体时除外；c 粘土类传统陶瓷，包括：1 日用陶器(餐具等日用精细陶瓷制品)；2 建筑卫生陶瓷；3 墙体材料；d 定形的和不定形的耐火材料。本标准适用于精细陶瓷的分类。本标准不适用于硬质合金产品或者主要成分为玻璃的制品，但可以参照采用。本标准不是为了强制规范该分类系统如何使用，而是提供一个灵活框架和一个推荐性的可操作的编码系统，使用人员可以根据陶瓷产品信息编订编码。

NB/T 20378-2016核电厂屏蔽混凝土配合比设计规程

本标准规定了用于辐射屏蔽的屏蔽混凝土配合比设计方法和步骤。本标准适用于核电厂屏蔽混凝土配合比设计，其他有辐射屏蔽功能需求的设施所采用的屏蔽混凝土配合比设计可参照执行。

NB/T 20475-2017干式贮存系统和运输容器核临界控制用含硼中子吸收材料的鉴定和验收

本标准规定了含有中子吸收核素<上标10>B的金属合金、金属基复合材料、陶瓷材料等有包覆层或无包覆层中子吸收材料的鉴定试验和验收试验等技术要求。本标准适用于干式贮存系统和运输容器核临界控制用含硼中子吸收材料的鉴定和验收。

EJ 622-1992反应堆燃料元件术语

本标准规定了反应堆燃料元件领域的技术术语和定义。\t本标准适用于反应燃料元件领域的标准、技术文件、书刊、教材和手册等的编写和翻译。\t本标准中方括号内的字为在不引起混淆情况下可省略的字，圆括号内为加注或替换词。本标准按汉语拼音字母顺序排列，英文索引见附录A（补充件）。

EJ/T 20077-2014铅硼聚乙烯板规范

本规范规定了铅硼聚乙烯板的要求、质量保证规定、交货准备等。本规范适用于通过挤出和热压成型制备的铅硼聚乙烯板的制造与交付。

ASTM C750-1989(1997)核级碳化硼粉末标准规范

1.1 This specification defines the chemical and physical requirements for boron carbide powder intended for a variety of nuclear applications. Because each application has a different need for impurity and boron requirements, three different chemical compositions of powder are specified. In using this specification, it is necessary to dictate which type of powder is intended to be used. In general, the intended applications for the various powder types are as follows: 1.1.1 Type 1 -For use as particulate material in nuclear reactor core applications. 1.1.2 Type 2 -Powder that will be further processed into a fabricated shape for use in a nuclear reactor core or used in non-core applications when the powder directly or indirectly may cause adverse effects on structural components, such as halide stress corrosion of stainless steel. 1.1.3 Type 3 -Powder that will be used for non-core applications or special in-core applications.

ASTM C750-2003核纯级碳化硼粉末标准规范

1.1 This specification defines the chemical and physical requirements for boron carbide powder intended for a variety of nuclear applications. Because each application has a different need for impurity and boron requirements, three different chemical compositions of powder are specified. In using this specification, it is necessary to dictate which type of powder is intended to be used. In general, the intended applications for the various powder types are as follows: 1.1.1 Type 1 -For use as particulate material in nuclear reactor core applications. 1.1.2 Type 2 -Powder that will be further processed into a fabricated shape for use in a nuclear reactor core or used in non-core applications when the powder directly or indirectly may cause adverse effects on structural components, such as halide stress corrosion of stainless steel. 1.1.3 Type 3 -Powder that will be used for non-core applications or special in-core applications.

ASTM C750-2009核纯级碳化硼粉末的标准规范

1.1 This specification defines the chemical and physical requirements for boron carbide powder intended for a variety of nuclear applications. Because each application has a different need for impurity and boron requirements, three different chemical compositions of powder are specified. In using this specification, it is necessary to dictate which type of powder is intended to be used. In general, the intended applications for the various powder types are as follows: 1.1.1 Type 18212;For use as particulate material in nuclear reactor core applications. 1.1.2 Type 28212;Powder that will be further processed into a fabricated shape for use in a nuclear reactor core or used in non-core applications when the powder directly or indirectly may cause adverse effects on structural components, such as halide stress corrosion of stainless steel. 1.1.3 Type 38212;Powder that will be used for non-core applications or special in-core applications. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

ASTM C750-2009(2014)核纯级碳化硼粉末的标准规格

1.1x00a0;This specification defines the chemical and physical requirements for boron carbide powder intended for a variety of nuclear applications. Because each application has a different need for impurity and boron requirements, three different chemical compositions of powder are specified. In using this specification, it is necessary to dictate which type of powder is intended to be used. In general, the intended applications for the various powder types are as follows: 1.1.1x00a0;Type 1x2014;For use as particulate material in nuclear reactor core applications. 1.1.2x00a0;Type 2x2014;Powder that will be further processed into a fabricated shape for use in a nuclear reactor core or used in non-core applications when the powder directly or indirectly may cause adverse effects on structural components, such as halide stress corrosion of stainless steel. 1.1.3x00a0;Type 3x2014;Powder that will be used for non-core applications or special in-core applications. 1.2x00a0;The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

ASTM C750-2018核级碳化硼粉末标准规范

1.1x00a0;This specification defines the chemical and physical requirements for boron carbide powder intended for a variety of nuclear applications. Because each application has a different need for impurity and boron requirements, three different chemical compositions of powder are specified. In using this specification, it is necessary to dictate which type of powder is intended to be used. In general, the intended applications for the various powder types are as follows: 1.1.1x00a0;Type 1x2014;For use as particulate material in nuclear reactor core applications. 1.1.2x00a0;Type 2x2014;Powder that will be further processed into a fabricated shape for use in a nuclear reactor core or used in non-core applications when the powder directly or indirectly may cause adverse effects on structural components, such as halide stress corrosion of stainless steel. 1.1.3x00a0;Type 3x2014;Powder that will be used for non-core applications or special in-core applications. 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 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.

ASTM C751-2007核纯级碳化硼丸的标准规范

1.1 This specification applies to boron carbide pellets for use as a control material in nuclear reactors.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.