21.140 密封件、密封装置 标准查询与下载

JB/T 6616-2020 橡胶波纹管机械密封 技术条件

Rubber bellows mechanical seal technical conditions

JB/T 13968-2020 旋转接头的型式、主要尺寸、材料和识别标志

Types, main dimensions, materials and identification marks of rotary joints

JB/T 7757-2020 机械密封用O形橡胶圈

O-ring rubber ring for mechanical seal

JB/T 6374-2020 机械密封用碳化硅密封环 技术条件

Technical specifications of silicon carbide sealing rings for mechanical seals

ASTM F140-98(2020) 用旋光法制作标准玻璃金属对接密封件和膨胀特性试验的标准实施规程

1.1 This practice covers the preparation and testing of reference glass-metal butt seals of two general configurations, one applicable to determining stress in the glass and the other applicable to determining the degree of mismatch of thermal expansion (or contraction). Tests are in accordance with Test Method F218, Subsection 1.1. 1.2 This practice applies to all glass and metal (or alloy) combinations normally sealed together in the production of electronic components. It should not be attempted with glassmetal combinations having widely divergent thermal expansion (or contraction) properties. 1.3 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.

Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods

T/ZZB 1665-2020 阀杆用低逸散柔性石墨密封填料

本文件规定了阀杆用低逸散柔性石墨密封填料（以下简称填料）的结构型式和分类、基本要求、技术要求、试验方法、检验规则、标志、包装、运输及贮存和质量承诺。 本文件适用于阀杆用低逸散柔性石墨密封填料。 注：任何物理形态的任意化学品或化学品的混合物，其从工业场所的设备中发生的非预期的或隐蔽的泄漏现象称为“逸散性”。

Fugitive emissions flexible graphite packings for valve stems

ASTM F256-05(2020) 具有18或28％铬的铬 - 铁密封合金的标准规范

1.1 This specification covers two chromium-iron alloys, the former, (UNS K91800), nominally 18 % chromium, balance iron, the latter, (UNS K92801), nominally 28 % chromium, in strip, bar, wire, and rod forms intended primarily for sealing to glass in electronic applications. NOTE 1—UNS K92801 should only be considered for use at service temperatures below 300°C. The alloy is prone to sigma phase formation at temperatures close to 620°C, and exhibits brittle mechanical behavior after prolonged exposures at temperatures close to 475°C. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. 1.3 The following hazard caveat pertains only to the test method portion, Sections 16 and 17, of this specification. 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. 1.4 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.

Standard Specification for Chromium-Iron Sealing Alloys with 18 or 28 Percent Chromium

JB/T 9141.6-2020 柔性石墨板材 第6部分：固定碳含量测定方法

Flexible graphite sheets Part 6: Method for determination of fixed carbon content

JB/T 10688-2020 聚四氟乙烯垫片

本标准规定了聚四氟乙烯垫片的技术要求、检验、标志、包装和贮存。 本标准适用于聚四氟乙烯垫片。

Specifications of polyfluortetraethylene gaskets

JB/T 9141.5-2020 柔性石墨板材 第5部分：灰分测定方法

Flexible graphite sheets Part 5: Ash content determination method

ASTM F2716-08(2020) 高压饱和蒸汽中非金属扁平垫片的比较标准实践

1.1 This practice provides a means of comparing various nonmetallic flat gasket materials, Classification F104, in saturated steam service under controlled conditions. While the practice is designed primarily for flat gaskets, it also can be applied to various form-in-place gasket materials upon modification. The practice may be used for quality control or material comparison purposes as agreed upon between producer and user. This practice is consistent with Fluid Sealing Association test method, FSA-NMG-204-02, with regard to fixtures used and procedure. 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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.

Standard Practice for Comparison of Nonmetallic Flat Gaskets in High Pressure Saturated Steam

ASTM F433-02(2020) 垫片材料热导率评估标准实践

1.1 This practice covers a means of measuring the amount of heat transfer quantitatively through a material or system. 1.2 This practice is similar to the Heat Flow Meter System of Test Method C518, but modified to accommodate small test samples of higher thermal conductance. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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.

Standard Practice for Evaluating Thermal Conductivity of Gasket Materials

KS B 2799-2019 形圈外壳 设计标准

O-RINGS HOUSINGS - DESIGN CRITERIA

T/ZZB 1453-2019 道路机动车辆灯泡用卡口式灯头

本标准规定了道路机动车辆灯泡用卡口式灯头（以下简称灯头）的术语和定义、命名、型号、基本要求、技术要求、试验方法、检验规则、标志、包装、运输和贮存及质量承诺。 本标准适用于符合GB/T 15766.1道路机动车辆灯泡用灯头。

Bayonet cap for bulb of road motor vehicle

ASTM F144-80(2019) 用旋光法进行标准玻璃-金属夹层密封和膨胀特性试验的标准实施规程

1.1 This practice covers the preparation and testing of a reference glass-metal sandwich seal for determining stress in the glass or for determining the degree of thermal expansion (or contraction) mismatch between the glass and metal. Tests are in accordance with Test Method F218 (Section 2). 1.2 This practice applies to all glass and metal (or alloy) combinations normally sealed together in the production of electronic components. 1.3 The practical limit of the test in deriving mismatch is approximately 300 ppm, above which the glass is likely to fracture. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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.

Standard Practice for Making Reference Glass-Metal Sandwich Seal and Testing for Expansion Characteristics by Polarimetric Methods

ASTM F105-72(2019) 58型硼硅酸盐密封玻璃的标准规范

1.1 This specification covers Type 58 borosilicate sealing glass for use in electronic applications. NOTE 1—This specification is primarily intended to consider glass as most generally used, that is, glass in its transparent form as normally encountered in fabricating electronic devices. X1.3 refers to a sealing alloy that is compatible with this glass. Type 58 glass in other forms such as powdered, crushed, sintered, fibrous, etc., are excluded. The requirements of this specification, as applied to these forms, must be established in the raw glass prior to its conversion. 1.2 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.

Standard Specification for Type 58 Borosilicate Sealing Glass

ASTM F79-69(2019) 101型密封玻璃的标准规范

1.1 This specification covers Type 101 sealing glass for use in electronic applications. NOTE 1—This specification is primarily intended to consider glass as most generally used, this is, glass in its transparent form as normally encountered in fabricating electronic devices. X1.3 lists sealing metals and alloys that are compatible with this glass. Type 101 glass in other forms such as powdered, crushed, sintered, fibrous, etc. are excluded. The requirements of this specification, as applied to these forms, must be established in the raw glass prior to its conversion. 1.2 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.

Standard Specification for Type 101 Sealing Glass

ASTM F495-99a(2019) 暴露于高温下垫片材料重量损失的标准试验方法

1.1 This test method covers the determination of gasket material weight loss upon exposure to elevated temperatures. 1.2 This test method may include hazardous materials, operations, and equipment. 1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 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.

Standard Test Method for Weight Loss of Gasket Materials Upon Exposure to Elevated Temperatures

ASTM F112-00(2019) 密封垫圈密封性的标准试验方法

1.1 This test method covers the evaluation of the sealing properties of enveloped gaskets for use with corrosion-resistant process equipment.2 Enveloped gaskets are described as gaskets having some corrosion-resistant covering over the internal area normally exposed to the corrosive environment. The shield material may be plastic (such as polytetrafluoroethylene) or metal (such as tantalum). A resilient conformable filler is usually used inside the envelope. The design and construction of nonmetallic gaskets is covered in Practice F336. 1.2 The values stated in SI units are to be regarded as standard. The values given 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 appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific precautionary statements, see Section 6. 1.4 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.

Standard Test Method for Sealability of Enveloped Gaskets

ASTM C1619-19 用于连接混凝土结构的弹性密封件的标准规范

Standard Specification for Elastomeric Seals for Joining Concrete Structures