... , have ISO9001, ISO14001, GB/T28001, KOSHER, REACH CERTIFICATION COMMODITYCITRIC ACID MONOHYDRATE BP98PACKAGEIN 25KGS PAPER BAGTESTSTANDARDCONTENT99.5%~101.0%OXALATE100PPMmaxSULPHATES150PPMmaxHEAVY METALS5PPMmaxALUMINIUM0.2PPMmaxARSENIC1PPMmaxLEAD1PPMmaxMERCURY1PPMmaxSULPHATED ... /mg maxREADILY CARBONISABLE SUBSTANCELESS THAN STANDARDIDENTIFICATIONPASS THE TEST citric acid monohydrate