1.1本标准规定:-对压力开关外壳进行疲劳验证和确定爆破压力额定值的试验程序；-产生疲劳分布数据的试验和统计方法；-判断流体动力压力开关的一种压力能力的通用要求和行业理念产品比较的统一方法。1.2本标准对以下条件进行了限制:-构成或保持承压外壳的元件的恒定振幅、压力诱导荷载；-至少100000次循环的产品寿命；-压力水平和脉冲持续时间的定义条件；-从夏比冲击转变温度到蠕变敏感性阈值的温度；-与承压外壳材料化学相容的环境； -材料包括铝、镁、钢、铁、铜基合金、钴、钛、不锈钢、镍钢和蒙乃尔合金。特别排除蠕变敏感材料，如:锌、塑料、橡胶和密封装置。1.3本标准不包括压力开关的功能性能，也不包括将额定疲劳压力或额定爆破压力应用于承压外壳时维持设定点的能力。

1.1 This standard provides:- test procedures for conducting a verification of the fatigue and establishment of burst pressure ratings on pressure switch envelopes;- test and statistical methods for generating fatigue distribution data;- common requirements and an industry wide philosophy in judging one type of pressure capability for fluid power pressure switches;- Uniform methods of product comparison.1.2 This standard limits conditions as follows:- constant amplitude, pressure induced loading of the elements that constitute or maintain the pressure containing envelope;- product life of at least 100,000 cycles;- defined conditions for pressure levels and pulse durations;- temperatures from the charpy impact transition temperature to the threshold of creep sensitivity;- environments which are chemically compatible with the materials of the pressure containing envelope;- materials that are aluminum, magnesium, steel, iron, copper based alloys, cobalt, titanium, stainless steels, nickel steels and Monel. Specifically excluded are creep sensitive materials such as: zinc, plastic, rubber, and sealing devices.1.3 This standard does not include functional performance of a pressure switch, nor the ability to maintain a set point, when either the rated fatigue pressure or the rated burst pressure has been applied to the pressure containing envelope.