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.
1 Laminate floor installation should take place at a room temperature of at least 65Â°F (15Â°C). 2  A floor surface temperature of 59Â°F and an overall room temperature of 65Â°F must be ensured before, during and three days after the installation. 3  Take extra care when installing laminate flooring over radiant heating.