标准编号：ISO 21013-3:2006
中文名称：低温容器-低温容器用减压附件 第3部分：规格及容量测定
英文名称：Cryogenic vessels — Pressure-relief accessories for cryogenic service — Part 3: Sizing and capacity determination
发布日期：2006-01
标准范围
This part of ISO 21013 provides separate calculation methods for determining the required mass flow to be relieved for each of the following specified conditions.- Vacuum-insulated vessels with insulation system (outer jacket + insulating material) intact under normal vacuum; outer jacket at ambient temperature; inner vessel at temperature of the contents at the relieving pressure.- Vacuum-insulated vessels with insulation system (outer jacket + insulating material) intact under normal vacuum; outer jacket at ambient temperature; inner vessel at temperature of the contents at the relieving pressure; pressure regulator of the pressure build-up system functioning at full potential.- Vacuum-insulated vessels with insulation system remaining in place but with loss of vacuum, or nonvacuum- insulated vessels with insulation system intact; outer jacket at ambient temperature; inner vessel at temperature of the contents at the relieving pressure; vacuum or non-vacuum-insulated vessels with insulation system remaining fully or partially in place, but with loss of vacuum in the case of vacuuminsulatedvessels, and fire engulfment; inner vessel at temperature of the contents at the relievingpressure.- Vessels with insulation system totally lost and fire engulfment.Good engineering practice based on well-established theoretical physical science shall be adopted to determine the required mass flow where an appropriate calculation method is not provided for an applicablecondition.
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