I want to know what Code requires design retrofit for buildings in the state of California. I am modifying a small building that was built in 1965 and I want to know if the entire building needs to be upgraded and what code allows/exempts required changes.
I am curious in understanding what makes 302 Stainless Steel bleach compatible. I have made experiments with small springs made from 302 SS that have not corroded.
Is the 302 steel resistant to oxidation from hypochlorite (OCl-) or is it resistant to the hydroxide (OH-)? How is 302 steel...
Will an object that is heated ever get to a higher temperature then the heat input temperature itself. For example, if I heat a piece of metal with a heat source at 150F, will the temperature of the metal ever exceed 150F if the heat source input remains constant for a long period of time? Thanks!
Do dust collectors located outside of buildings require vent protection per NFPA 68? If so, what paragraph in the NFPA 68 Standard references this requirement? Thank you!
Hello, I have a tank(s)/pipe system with the following set up: I have one tank with 250 gallons of 5% sodium carbonate in solution. This tank is fed into another tank with water added to achieve a final sodium carbonate solution of 0.10% in soultion (by wieght).
My questions are:
1) How much...
I have a dryer that uses off gas heat for evaporating moisture from my product. I want to know what is the required level of oxygen in the air to initiate comustion? The incoming air temperature is 350F and moisture is 0.020 lbs H2O/lbs Air. The exhaust air is 250F and 0.040 lbs H2O/lbs Air...
