Name of index

Index

Analysis value

Content (As Na₂H₂P₂O₇),      %

93.0-100.5

96.6

Fluoride(As F) ,              % ≤

0.005

<0.005

Arsenic(As),                 % ≤

0.0003

<0.0003

Heavy metals (As Pb) ,       % ≤

0.0010

<0.0010

Lead(Pb),                 % ≤

0.0002

 <0.0002

Water Insoluble ,           % ≤

1.0

0.12

Rate of reaction (2mintues)

     25-30

28

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Expiry date

        Feb,19, 2014

Conclusion :

Pass