BS ISO 21360-3:2019规定了测量机械增压真空泵最大容许压差、有效压缩比、零流量压缩比和溢流阀压差的方法和特殊要求。交叉引用:ISO 21360-1:2012ISO 3529-2ISO 3529-1ISO 3567ISO 21360-2:2012ISO/IEC 17025ISO 14617（所有部分）ISO/IEC指南98-3购买本文件时提供的所有现行修订版均包含在购买本文件中。

BS ISO 21360-3:2019 specifies methods and special requirements for measuring the maximum tolerable pressure difference, effective compression ratio, compression ratio with zero throughput and overflow valve pressure difference of mechanical booster vacuum pumps.Cross References:ISO 21360-1:2012ISO 3529-2ISO 3529-1ISO 3567ISO 21360-2:2012ISO/IEC 17025ISO 14617 (all parts)ISO/IEC Guide 98-3All current amendments available at time of purchase are included with the purchase of this document.