发明名称 |
Apparatus having limited time and particle size resolution for determining the concentration of dust, in particular wood dust, in the air breathed in places of work |
摘要 |
The invention describes a process and an apparatus having limited time and particle size resolution for determining the concentration of dust, in particular wood dust, in the air breathed in places of work, with a complete fractionation of the coarse dust and a resolution in each case of the concentration of the coarse dust using an apparatus which comprises individual impactors for the dust fraction and a virtual impactor for enriching the coarse dust, and is used for the photometric determination of the coarse and fine dust population.
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申请公布号 |
DE3737129(A1) |
申请公布日期 |
1989.05.11 |
申请号 |
DE19873737129 |
申请日期 |
1987.11.02 |
申请人 |
FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG EV |
发明人 |
LOEDDING,HUBERT,DIPL.-ING.;DUNKHORST,WILHELM,DIPL.-ING.;KOCH,WOLFGANG,DIPL.-PHYS.DR.RER.NAT. |
分类号 |
G01N15/02 |
主分类号 |
G01N15/02 |
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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