Aggressive Sampling Clause Samples

Aggressive Sampling. A. Aggressive sampling will be used when directed by the Consultant or required by law. The following aggressive sampling techniques will be used: 1. Before the sampling pumps are started the exhaust from forced air equipment (electric leaf blower) will be directed against all walls, ceilings, floors, ledger and other surfaces in the room. This procedure will be continued for five minutes per 10,000 cubic feet of room volume. 2. The Contractor shall provide one 20-inch diameter fan per 10,000 cubic feet of room volume, mounted in a central location in the Work Area at approximately two meters above floor, directly toward ceiling and operated at low speed for the entire period of sample collection. 3. Air samples will be collected in areas subject to normal circulation away from room corners, obstructed locations, and sites near windows, doors and vents.