0	Passed
16	Failed read - general (Communications failure)
18	Failed reading emergency mode (Communications failure)
19	Failed reading failure status (Communications failure)
48	Failure with no available detail
50	Duration Failure 
52	Battery Failure
54	Duration Failure + Battery Failure
56	Emergency Lamp Failure  
62	Duration Failure + Battery Failure + Emergency Lamp Failure  
64	Test deferred (Battery not yet charged)
66	Test deferred (Battery not yet charged)
72	Test deferred (Battery not yet charged)
74	Test deferred (Battery not yet charged)
160	Below Threshold