Chemical Penetration : The movement of material through a suit's closures, such as zippers, buttonholes, seams, flaps, or other design features. Abraded, torn, or ripped suits will also allow penetration
John R. Cashman, Emergency Response to Chemical and Biological Agents, Glossary, ISBN 1-56670-355-7, Lewis Publishers, CRC Press LLCU, USA 2000. https://books.google.com.kw/books?id=i0lCG8f_6T8C& pg=PA319&lpg=PA319&dq=Fog+%26+Mist+Emergencies+Glo ssary&source=bl&ots=65he7jtVb3&sig=eihli-g4gRSarGm f6usuIOCuksQ&hl=en&sa=X&ei=odQOVZWKDcv3auXvgKgD&ve d=0CDUQ6AEwBA#v=onepage&q=Fog%20%26%20Mist%20Emerg encies%20Glossary&f=false, (Chem&BiolEmr - Amer) {973}