Phosphate as P IC Standard Solution, 100 ml, 2,2 mg/l PO43- (as P), HDPEPhosphate as P IC Standard Solution, ROTIStar, 2. 2 mg l PO43 (P), Density (D) 1 g cm, Boiling point (bp) 100 C The standard solution is certified and can be traced to NIST standard reference solutions. The solution is produced according to ISO 17034 in an accredited environment, tested in a laboratory accredited to ISO IEC 17025 and supplied with a detailed, batch specific certificate of analysis. Technical Information Ion PO43 Concentration 2,2 mg l