本文件描述了适用于导电和绝缘材料的电接触电阻测试方法 在由导电材料制成的试样上涂敷非导电涂层（除非另有规定 规定）用于航空航天应用。这种做法的目的是定义和控制许多 已知变量，以便对材料的接触特性进行有效比较。 根据所测试的工艺，该测试可能具有局部破坏性。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This document describes the electrical contact resistance testing method applicable to conductive and non-conductive coatings applied on test specimens made of conductive materials (unless otherwise specified) for aerospace applications. An objective of this practice is to define and control many of the known variables in such a way that valid comparisons of the contact properties of materials can be made. This test may be locally destructive depending on the process tested.All current amendments available at time of purchase are included with the purchase of this document.