Vapour vacuum pumps measurement of performance characteristics—Measurement of back-streaming rate of pump fluid and the heating time
MOD DIN 28427:1983
全国真空技术标准化技术委员会(SAC/TC 18)
本标准规定了蒸汽流真空泵泵液返流率和加热时间的测量方法。
本标准适用于下列蒸汽流真空泵：扩散泵、扩散喷射泵（以下简称为泵）。泵工作室温为（20±5）℃，泵工作液蒸汽压低于100 Pa。
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