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dispensers will prevent many accidents that result from misapplication, mishandling, or improper storage
of industrial sprays.
The rules for safe use of aerosol dispensers are listed below:
Carefully read and comply with the instructions printed on the container.
Do not use any dispenser that is capable of producing dangerous gases or other toxic effects in
an enclosed area unless the area is adequately ventilated.
If a protective coating must be sprayed in an inadequately ventilated space, either an air
respirator or a self-contained breathing apparatus should be provided. However, fresh air
supplied from outside the enclosure by exhaust fans or portable blowers is preferred. Such
equipment prevents inhalation of toxic vapors.
Do not spray protective coating on warm or energized equipment because this creates a fire
hazard.
Avoid skin contact with the liquid. Contact with some liquids may cause burns, while milder
exposure may cause rashes. Some toxic materials are actually absorbed through the skin.
Do not puncture the dispenser. Because it is pressurized, injury can result.
Keep dispensers away from direct sunlight, heaters, and other heat sources.
Do not store dispensers in an environment where the temperature exceeds the limits printed on
the can. High temperatures may cause the container to burst.
Q34. List two causes of damage to ESD-sensitive electronic components.
Q35. What is the purpose of the wrist ground strap?
Q36. What is the cause of most accidents?
SUMMARY
This topic has presented information on miniature and microminiature (2M) repair procedures and
2M safety precautions. The information that follows summarizes the important points of this topic.
CONFORMAL COATINGS are protective materials applied to electronic assemblies to prevent
damage caused by corrosion, moisture, and stress.
CONFORMAL COATINGS REMOVAL is accomplished mechanically, chemically, or thermally,
depending on the material used.
