Formulas
If L x W x H of water = Cubic foot of water (CFW)
then
CFW x _.__ = gallons of water GW
GW x _.__ = Weight of Water
7.48; 8.34
At what relative humidity will hygroscopic material absorb excess water vapor?
60%
The process of removing contaminated materials in a manner that minimizes the spread and aerosolization of contaminants and debris.
Controlled removal
In areas where visual signs are not evident but smoke odors still exist, it is necessary to test for...
Smoke
Category 1 water is from a clean source with no substantial risk of causing...
Sickness or discomfort
Total gallons of flooded water...
Ft3(CF) x 7.48gal/ft3
Many building materials will absorb excess water vapor and suffer damage, especially when air is allowed to remain above _____% relative humidity.
40%
Condition 1
An indoor environment that may have settled spores, fungal fragments or traces of actual growth whose identity, location, and quantity are reflective of a normal fungal ecology for a similar indoor environment.
Thermal fogging petroleum-based deodorizers excessively in a confined space can create what safety hazards?
-Respiratory irritation
-Slippery residues
Category 2 water carries a significant degree of
Chemical, biological, and physical contamination
Submersible pump- Time required
Total gallons / Pump lift rate
/ = division
What surface temperature promotes the most rapid evaporation?
80 degrees
Condition 2
An indoor environment that is primarily contaminated with settled spores or fungal fragments that were dispersed directly or indirectly from a Condition 3 area, and which may have traces of actual growth.
Smoke a soot are visible by-products of...
incomplete combustion
Category 3 water results from a grossly ____ or carries...
Unsanitary source; pathogenic agents
Refrigerant formula
Ft3(CF)/class = Pints per day (PPD)/Unit AHAM = #Units
_______ is the temperature at which air becomes saturated with moisture and can hold no more water vapor.
Dew Point
Condition 3
An indoor environment contaminated with the presence of actual mold growth, associated spores, and fungal fragments. Actual growth includes growth that is active or dormant, visible or hidden.
To remove high levels of protein odor from surfaces, ______ __________ is usually required for cleaning protein residues.
Wet cleaning
What are the "4 knows" of drying?
What's wet?
How wet is it?
Is it drying?
Is it done?
Desiccant Formula
Ft3(CF) x class/60 = CFM required/Unit CFM = #Units
Which of these surface temperatures would have the fastest rate of evaporation?
30 degrees above dew point, the higher the better
The transport of contaminants in the air from a contaminated work area to an unaffected area
Cross contamination
Both PAH and soot particles have been reported to be ___________ to humans
Carcinogenic; thus proper PPE must always be worn
How do you obtain a "dry standard"?
Dry standard involves pre-loss moisture levels in the structure, and they can be found by locating unaffected materials in the structure and getting the target values from there