Test Gases are used for qualitative functional testing of sensors and alarms only. Test gases cannot be used as calibration gases.
	
	This cylinder contains:
- 40ppm H2S (hydrogen sulfide)
 - 200ppm CO (carbon monoxide)
 - 2.5% CH4 (methane)
 - 10% O2 (oxygen)
 
KKInstruments sells various types of calibration gas.
| 
				 Cylinder Material  | 
			
				 Aluminum  | 
		
| 
				 Balance  | 
			
				 N2  | 
		
| 
				 Volume  | 
			
				 11 (Liters)  | 
		

 