If the temperature in the test apparatus is changed from 25 C [77 F] to 80 C [176 F] during the test without modifying the test protocol, water condenses on the charcoal, thereby causing the test to be aborted (to fail).
(the temperature in the test apparatus; is changed; from 25 C; to 80 C; T:during the test) (water condenses on the charcoal; causing; the test to be aborted (to fail) (the test to be aborted; to fail; )
the temperature in the test apparatus water condenses on the charcoal the test to be aborted
is changed causing to fail
from 25 C to 80 C T:during the test
the test to be aborted (to fail