... 30 liter PE can with poring spout,200 liter drum,1000 liter IBC Tank,18000 liter Fexi-Tank. ... wt%)31.8 ~ 33.2AppearanceTransparent solutionDensity (Kg/m3)1087.0 ~ 1093.0Specific Gravity (20°C)1.09Insolubles (mg/kg ... )Less than 20Alkalinity as NH3 (wt%)0.2 max.Biuret (wt%)0.3 maxRefractive index at 20°C1.3814 ... - 1.3843Aldehyde (ppm)5 max.Phosphate (PO4 ) (mg/kg)0.5 max.Ca, Fe, Al, Cu, Zn, Cr, Ni ...