Perform Steps using No.
Finger-crush Heater Ampoule
After two minutes have passed, swing the hinged heater
assembly and hinged protective strip away from the test
Sampler can be laid down or held by hinged protective
strip. Shield the sampler from direct sunlight for 10
Finger-crush the second green ampoule marked No.4
(Figure 1-10). Swing the heater assembly over the test
spot. Vent vapor away from operator's body. Leave the
hinged heater assembly in place for one minute.