citric acid mono ,citric acid anhydrous , BP93 , USP23, BP2003 , USP27/28 , E300/331 Quality Standard of Citric Acid AnhydrousITEMUNITBP93BP98USP24Standard of Enterprise Description Colourless Crystals or Crystal PowdersIdentification Pass ... .2/≤0.2Bacteria EndotoxinIU/mg/≤0.5/≤0.5 citrc acid Mono&Anhy