本标准规定了手动扭矩仪的性能和安全要求，手动扭矩仪通常用于测量扭矩，以控制螺纹紧固件的紧密性。它还为带有整体式或可互换磁头的手动电子扭矩仪提供了性能和安全要求。它包括这些扭矩仪器的耐久性、扭矩值范围、角度测量和精度要求。它还提供了用于检查手动、手持式扭矩扳手和扭矩螺丝刀的电子扭矩测试仪的性能和安全要求。其目的不是描述不常使用的产品或为特殊目的设计的产品。 本标准可作为国家当局或其他监管机构制定法律或法规的指南。它也适用于使用或制造所涵盖仪器的机构的自愿使用。

This Standard provides performance and safety requirements for manually operated torque instruments, commonly used for measurement of torque to control the tightness of threaded fasteners. It also provides performance and safety requirements for manually operatedelectronic torque instruments with integral or interchangeable heads. It includes requirements for endurance, torque value ranges, angle measurements, and accuracy for these torque instruments. It further provides performance and safety requirements for electronic torque testers used for checking manually operated, hand-held torque wrenches and torque screwdrivers. It is not intended to describe products infrequently utilized or those designed for special purposes.This Standard may be used as a guide by state authorities or other regulatory bodies in the formulation of laws or regulations. It is also intended for voluntary use by establishments that use or manufacture the instruments covered.