本规范涵盖了精密线绕可变电阻器的一般要求，其电气输出（以施加电压的百分比表示）相对于轴的角度位置为线性或非线性。本规范包括线性和非线性、单匝和多匝、单段（杯）和多段可变电阻器的要求。这些电阻器能够在70摄氏度和85摄氏度的最高环境温度下满负荷运行，并适合在适当降额时连续运行，最高温度为125摄氏度和150摄氏度（见3）。 1、6.2和图10）。本规范包括本文所述的I类、II类和III类精密电阻器的要求（见3.2）。

This specification covers the general requirements for precision, wirewound, variable resistors whose electrical output (in terms of percent of applied voltage) are linear or nonlinear with respects to the angular position of the shaft. This specification includes requirements for linear and nonlinear, single turn and multiturn, single-section (cup) and multisection variable resistors. These resistors are capable of full-load operation at maximum ambient temperatures of 70 degrees C and 85 degrees C and are suitable for continuous operation, when properly derated, to maximum temperatures of 125 degrees C and 150 degrees C (see 3.1, 6.2, and figure 10). This specification includes requirements for category I, category II, and category III precision resistors as described herein (see 3.2).