1.1 本指南涵盖了如何理解和最小化疲劳和断裂力学测试设备中与数据采集相关的错误。当需要认证时，本指南不用于替代数据采集系统的认证可追溯校准或验证。它不包括静态负载验证，用户可参考当前版本的实践 E4类 ，或静态引伸计验证，用户可参考当前版本的实施规程 E83 . 用户也参考实践 E467 . 1.2 本指南中描述的疲劳和断裂力学数据采集系统的输出基本上是一个数字数据流。 此类数字数据可被视为两种类型——基本数据，是表示连接到被测样本的传感器输出的等效模拟波形的数字样本序列，以及衍生数据，是通过应用适当的计算算法从基本数据中获得的数字值。本指南的目的是提供方法，确保此类基本数据和衍生数据充分描述材料的特性。它通过为关键系统参数设置最小或最大目标来实现这一点，并建议如何在这些参数的实际值未知的情况下测量这些参数。 1.3 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 This guide covers how to understand and minimize the errors associated with data acquisition in fatigue and fracture mechanics testing equipment. This guide is not intended to be used instead of certified traceable calibration or verification of data acquisition systems when such certification is required. It does not cover static load verification, for which the user is referred to the current revision of Practices E4 , or static extensometer verification, for which the user is referred to the current revision of Practice E83 . The user is also referred to Practice E467 . 1.2 The output of the fatigue and fracture mechanics data acquisition systems described in this guide is essentially a stream of digital data. Such digital data may be considered to be divided into two types– Basic Data, which are a sequence of digital samples of an equivalent analog waveform representing the output of transducers connected to the specimen under test, and Derived Data, which are digital values obtained from the Basic Data by application of appropriate computational algorithms. The purpose of this guide is to provide methods that give confidence that such Basic and Derived Data describe the properties of the material adequately. It does this by setting minimum or maximum targets for key system parameters, suggesting how to measure these parameters if their actual values are not known. 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.