专利名称：Penetration test kit 发明人：Norman B. Hess
申请号：US06/348116
申请日：19820211
公开号：US04483182A
公开日：
19841120
专利内容由知识产权出版社提供
摘要：An apparatus is provided to measure the wetting efficacy of certain dust control chemical additives. The additives are commonly sprayed on the dust to control and/or prevent the dismination of the dust into the atmosphere. The device compris a plurality of dust collection cylinders, each of which is adapted to retain a dust sample and the particular chemical additive for which testing is desired. A support is provided to support the cylinders and a visual display is operatively associated with the cylinders so as to indicate when the particular additive has completely penetrated the dust and thereby contacted the visual display.
申请人：BETZ LABORATORIES, INC.
代理人：Alexander D. Ricci,Bruce E. Peacock
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