挥发性排放用四分之一转阀门的型式试验

[中文适用范围]： 本标准规定了四分之一转阀门的无组织排放型测试的要求和验收准则。NPS 60以上的阀门、ASME B16.34标准中等级大于Class 1500的阀门，以及环境温度下压力等级低于6.89 barg（100 psig）的阀门，均不属于本标准的适用范围。对于所有额定温度等于或高于400 °C（750 °F）的阀门，可根据附录C或应采购方的要求，额外进行高温测试。 [外文原描述]： This standard specifies the requirements and acceptance criteria for fugitive emission type testing of quarter-turn valves. Valves larger than NPS 60 and valves greater than ASME B16.34 class 1500 are outside the scope of this standard. Valves with a pressure rating at ambient temperature less than 6.89 barg (100 psig) are outside the scope of this standard. For all valves rated greater than or equal to 400 °C (750 °F), an additional high temperature test may be performed in accordance with Annex C or when specified by the purchaser.