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【国外标准】 Standard Practice for Measuring the Change in Length of Bolts Using the Ultrasonic Pulse-Echo Technique

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标准简介标准简介

适用范围:

5.1 The techniques described provide for the measurement of change in length of a fastener. Such measurements are made from one end of the specimen without requiring access to the rear surface.5.2 The Ultrasonic Pulse Echo technique is used to monitor changes in length of fasteners and as a tool for industrial quality control. Applications include fasteners used in turbines, petrochemical pressure vessels, aircraft, automotive manufacturing, general bolting within the nuclear industry, structural steel connections, and laboratory testing.1.1 This practice covers a procedure for measuring changes in length of threaded bolts using the ultrasonic pulse-echo technique.1.2 This procedure is normally intended for metal bolting 6.3 mm or more in nominal diameter with effective length-to-diameter ratios of 2:1 or greater.1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.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.

基本信息

  • 标准号:

    ASTM E1685-20

  • 标准名称:

    Standard Practice for Measuring the Change in Length of Bolts Using the Ultrasonic Pulse-Echo Technique

  • 英文名称:

    Standard Practice for Measuring the Change in Length of Bolts Using the Ultrasonic Pulse-Echo Technique
  • 标准状态:

    Active
  • 发布日期:

  • 实施日期:

  • 出版语种:

标准分类号

  • 标准ICS号:

    17.040.30,21.060.01
  • 中标分类号:

关联标准

  • 替代以下标准:

  • 被以下标准替代:

  • 引用标准:

  • 采用标准:

出版信息

  • 页数:

    5 页
  • 字数:

  • 开本:

其他信息

  • 起草人:

  • 起草单位:

  • 归口单位:

    E28.13
  • 提出部门:

  • 发布部门:

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