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.
A: There is not just one ideal year-round indoor humidity level. People are typically comfortable with a RH (relative humidity) in the 30 to 50 percent range and can tolerate 20 to 60 percent.The ideal RH depends whether you live in the North or South, and it changes with the seasons.eople are typically comfortable with a RH (relative humidity) in the 30 to 50 percent range and can tolerate 20 to 60 percent.