List three of the sample locations that may be used, depending upon the type of
evaluation desired, when performing sampling techniques.
Which of the following sampling devices is NOT a direct readout device of gases
a. Portable carbon monoxide monitor and dector tube.
Charcoal tube and silica gel tube.
d. Fritted bubbler and infrared analyzer.
The number of air samples to be collected will depend upon the type of evaluation
being conducted and what is necessary to effectively evaluate a worker's
Devices used to sample air, which are interconnected in a certain order to obtain
the desired sample, are known as:
b. Flow meters.
d. Suction pumps.
Air purifying respirators do not protect against _________________ or against