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ITEM STANDARD TEST

DESCRIPTION CRYSTAL POWDER  CONFORM 

CONTENT                    99.00-101.0% 99.56%

WATER ≤0.5% 0.3%

MELTING POINT            132°C-135°C                           132.3°C-133.8°C

RESIDUE ON IGNITION        ≤0.2%                                   0.03%

ALDEHYDE(AS FORMALDEHYDE)  ≤0.1%                                   <0.1%

LEAD(PB)                   ≤2PPM                                   <2PPM

ARSENIC(AS)                ≤3PPM                                   <3

MERCURY(HG)                ≤1PPM                                   <1PPM

HEAVY METALS(as PB)        ≤10PPM                                  10PPM