Very high levels of AST (more than 10 times normal) are usually due to acute hepatitis, sometimes due to a viral infection. With acute hepatitis, AST levels usually stay high for about 1-2 months but can take as long as 3-6 months to return to normal.
MFMA recommends the relative humidity level for a concrete slab for a non-glue-down maple floor system be 85% or lower and for glue down systems the concrete slab relative humidity level should be 75% or lower before installation.
Shares & Saves. Save. The ideal moisture level for a basement, whether finished or unfinished, is 30 to 50 percent relative humidity. During summertime, outside moisture pours in through basement walls and windows, bumping this figure up to 65 to 70 percent in much of the United States and Canada.hares & Saves. Save. The ideal moisture level for a basement, whether finished or unfinished, is 30 to 50 percent relative humidity. During summertime, outside moisture pours in through basement walls and windows, bumping this figure up to 65 to 70 percent in much of the United States and Canada.