发明名称 |
AIRBORNE CONTAMINANT INDICATOR |
摘要 |
An indicator system provides a visual indication of the cumulative level of an airborne contaminant. An indicator has a transparent sheath with support medium treated with acid and a pH indicator, as the contaminant is adsorbed, the color changes along the medium. The indicator system may be used with an adsorptive filter system to predict the life of adsorption bed assemblies. A sample flow is taken upstream of the adsorption beds and is calibrated with a flow meter and valve. By monitoring the indicator, an accurate prediction of adsorption bed life may be made. |
申请公布号 |
EP1000351(A1) |
申请公布日期 |
2000.05.17 |
申请号 |
EP19980933147 |
申请日期 |
1998.07.07 |
申请人 |
DONALDSON COMPANY, INC. |
发明人 |
DALLAS, ANDREW, J.;GRAHAM, KRISTINE, M.;GRAFE, TIMOTHY, H. |
分类号 |
B01D53/04;G01N31/22;(IPC1-7):G01N31/22 |
主分类号 |
B01D53/04 |
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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