FM 21-40 BASIC FIELD MANUAL DEFENSE AGAINST CHEMICAL ATTACK (The matter contained herein supersedes chapter 8, Basic Field Manual, volume I, December 31, 1937 (including Cl, May 25, 1939).) SECTION I GENERAL • 1. OBJECT OF INSTRUCTION.—The object of instruction and training in defense against chemical attack is to— a. Minimize casualties from enemy chemical attacks. b. Prevent undue interruption to normal military action during cdxnbat. • 2. SCOPE or INSTRUCTION.—The scope of instruction includes— a. A description of chemical agents that may be encoun tered in the field, their properties and physiological effects. b. Effects of weather and terrain on the use of chemical agents. c. Methods of projecting chemical agents. d. Use and care of protective equipment. e. Methods of decontaminating areas and equipment. Pirst-aid treatment for gas casualties. ff.
DesignationFM 21-40
EditionJan 1940
StatusSuperseded
Pages158
FunctionCBRN
CollectionHistoric
Public domain (U.S. Government work)