本规范涵盖了在恶劣环境条件下对时间具有高度稳定性的密封或非密封固定膜电阻器的非建立可靠性（非ER）、建立可靠性（ER）和空间水平的一般要求。ER电阻器的故障率（FR）在60%置信度下建立，范围从0.001%/1000小时到1.0%/1000小时。设计师应注意在高功率脉冲应用中使用这些电阻器（见6.10）。

This specification covers the general requirements for nonestablished reliability (non-ER), established reliability (ER), and space level that are hermetically or nonhermetically sealed fixed film resistors that have a high degree of stability with respect to time under severe environmental conditions. ER resistors have failure rates (FR) that are established at 60 percent confidence ranging from 0.001 percent per 1,000 hours to 1.0 percent per 1,000 hours. Designers are CAUTIONED on using these resistors in high power pulse applications (see 6.10).