发明名称 |
METHOD FOR LEAK-TESTING HAND-HELD PISTON STROKE PIPETTES AND ASSOCIATED LEAK-TESTING APPARATUS |
摘要 |
A method for leak testing of hand-held piston stroke pipettes and a corresponding leak testing apparatus (1) for performing the method. Essential to the system is a holder (8) for the sealed connection of a pipette tip (3) to the leak-testing apparatus. A line system (9) with connecting sections of the leak-testing apparatus forms a specific connection volume. The pipette tip (3) is evacuated to a measuring pressure below atmospheric pressure. With the vacuum pump (5) disconnected and the connection volume sealed off, the pressure is measured after a specific time interval, and any possible rise in pressure is determined. An indication of the serviceability of the pipette (2) is generated from the pressure rise determined. |
申请公布号 |
US2012240663(A1) |
申请公布日期 |
2012.09.27 |
申请号 |
US201013505076 |
申请日期 |
2010.10.20 |
申请人 |
FELDMANN RAINER;ETTIG WOLFGANG;BRAND GMBH + CO KG |
发明人 |
FELDMANN RAINER;ETTIG WOLFGANG |
分类号 |
G01M3/28 |
主分类号 |
G01M3/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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