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.
The MSL rating is given after product qualification and determined by the materials used in its IC. packaging and assembly process is based on a constant 30Â°C and constant relative humidity. In practice, the absorption of moisture into an IC package is proportional to temperature and relative humidity. Therefore, floor life can generally be increased with exposure to temperatures lower than 30Â°C or lower. humidity levels than 60% RH.