International Sensor Technology , 3 Whatney, Irvine, CA 92618-2824
Tel: (U.S. & Canada) 1-800-478-4271; (International) 1-949-452-9000
Fax: 1-949-452-9009; Email:
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Introduction- from "Hazardous Gas Monitors" book (24 pages)- includes descriptions, "Terms, Definitions & Abbreviations," fully illustrated with charts and graphs, and types of protection (File size: 544K)