PRINCIPLES OF NAVAL ENGINEERING 



NATO COUNTRIES INCLUDING UNITED STATES 



FRONT 



GAS 



BACK 



CHEMICAL 



BIOLOGICAL 



USE OF TREFOIL 

 IS OPTIONAL 



RADIOLOGICAL 



^> 



DATE ANDTIME 

 OF DETECTION 

 NAAAE OF AGENT, 

 IF KNOWN 



DATE AND TIME 

 OF DETECTION 

 NAME OF AGENT, 

 IF KNOWN 



DOSE RATE 



DATE AND TIME 



OF READING 



DATE AND TIME 



OF BURST, 



IF KNOWN 



CURRENTLY USED WITHIN UNITED STATES 



RADIOLOGICAL 



DOSE RATE 



DATE AND TIME 



OF READING 



DATE AND TIME 



OF BURST, 



IF KNOWN 



Figure 4-8.— NBC contamination markers. 



C3.178 



78 



