At 73.5 degrees f blue spots will turn to a pink color at relative humidities as follows, top spot 65 pct, middle spot 40 pct, bottom spot 30 pct
NSN 4140-00-360-2031
NSN 6240-00-491-7191
NSN 6240-01-216-4060
NSN 4140-01-089-9724
NSN 5835-01-442-6482
NSN 5895-01-449-1839
NSN 5950-00-005-2764
NSN 6620-01-465-5120
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NSN 6220-01-146-1495
NSN 6610-00-681-0590
NSN 5950-01-472-2467
Last Updated: 05/01/2024