publication . Patent . 1991


Fritsche, U.;
Open Access German
  • Published: 01 Jan 1991
  • Country: Germany
The invention relates to a passive collector for air pollution for the determination of emission rates for dry and wet deposits on construction materials such as natural stone, whereby the collector has a surrogate surface of the stone under investigation, the surrogate surface being linked to a collecting vessel such that any dry or wet contamination occurring can be collected.
Medical Subject Headings: otorhinolaryngologic diseasesstomatognathic diseases
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