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it gets too hot, it just took me 8 min. to get it down to 99.1 degrees. are you supposed to blow into the vial? or just at the side?
for the next practice test I'm going to apply the heater and keep it crotched for an hour and then remove the heater and keep it crotched and check to see how long the temp. stays up. The heater is bringing it to about 106 degrees, I think if I keep it crotched without the heater, body heat should keep it at optimal temperatures. I'll probably have to call the test center and go in when they arent busy. If I can keep the temperatures in the correct range crotched without a heater for an hour then I think I should try it this way instead.
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