Contractor shall tent fumigate Building D (Cafeteria) for drywood termites. DOSAGE A. The Dow Chemical Fumiguide B and Y calculators shall be used for the coordination of fumigant rates with soil or slab temperature, exposed period, and fumigant loss rate measured as half-loss-time HLT. 1. Fumiguide B: Used for coordination of fumigant rates with temperatures, a 20 to 24 hour exposure period, and an estimated HLT. 2. Fumiguide Y: Used when fumigant concentrations are monitored and/or there are measured variations in exposure time. 3.03 APPLICATION A. Fans shall be placed to provide for forced air circulation of the fumigant during the application period. B. The fumigant shall be released at locations to ensure rapid, even distribution of the gas (equilibrium within 1 hour). C. The release of the fumigant shall be in strict accordance with the directions on the label of the fumigant.
