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Today's Terms
Backnailing
Definition:
In roofing, the practice of blind nailing (in addition to hot- mopping) all the plies to a substrate to prevent slippage on slopes of 1-1/2 inch or more for steep asphalt, 1/2 inch or more for coal-tar pitch and dead-level asphalt.
Acetic Acid
Definition:
A compound, which in the pure state is a colorless, pungent, biting liquid; vinegar contains 4 to 12 percent of acetic acid.
Inspections
Definition:
Periodic audits of the workplace environment, including equipment, chemicals, building structure, documented procedures, records, and employee knowledge of job requirements and hazards.
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