指標(biāo)名稱 Specifications

食品級 Food Grade

1

主含量（以NH4H2PO4計）%≥ Main contents

99.0

2

**（以P2O5計）%≥ Phosphorus pentoxide

61.0

3

氮（以N計） %≥ Nitrogen, as N

11.9

4

PH值（1%水溶液） PH value (1% solution)

4.3-5.0

5

水份 %≤ Moisture

0.2

6

重金屬（以Pb計）%≤ Heavy metal, as Pb

0.001

7

砷（以As計）%≤ Arsenic, as As

0.0003

8

氟化物（以F計） %≤ Fluoride as F

0.001

9

水不溶物%≤ Water insoluble

0.10