Serial Number

Item

Project  Standard

1

Ammonium Chloride (NH₄CL)     ≥%

99.5

2

H₂OMoisture          ≤%

0.5

3

Burning  draff               ≤%

0.4

4

Heavy metal as Pb       ≤%          

0.0005

5

Sulphate  (SO₄)        ≤

0.02

6

Fe                       ≤% 

0.0007

7

PH (200g/L liquor, temperature 25)

4.0-5.8

Item

Superior Grade

Frist Grade

Fraction of nitronge(N)/%      ≥

25.4

25.0

H₂OMoisture  /%                   ≤

0.5

1.0

Sodium salt /%                 ≤

0.8

1.0

Particel size(2.00mm-4.00mm)   /%     ≥

75

70