DS DS/EN 15922
DS DSEN 15922 2011-JUL-07 Fertlzers - Extracton of soluble phosphorus accordng to Petermann at ambent temperature
DS DSEN 15922 2011-JUL-07 Fertlzers - Extracton of soluble phosphorus accordng to Petermann at ambent temperature
This document specifies the procedure for the extraction of phosphorus soluble in cold alkaline ammonium citrate. The method is applicable for disintegrated phosphates exclusively.