1.1本标准规定:-生成疲劳分布数据的试验和统计方法；-验证FRL压力等级的试验和统计方法；-在判断FRL的一种压力能力时的共同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、橡胶和密封装置压力表被明确排除在外。1.3本标准鼓励制造商使用这种常用方法来提高其压力额定值的可信度。

1.1 This standard provides:- test and statistical methods for generating fatigue distribution data;- test and statistical methods for conducting a verification of the pressure ratings on FRLs;- common requirements and an industry-wide philosophy in judging one type of pressure capability for FRLs;- 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;- pressure gauges are specifically excluded.1.3 This standard encourages manufacturers to use this common method to enhance the credibility of their pressure ratings.