Items

Specification

Appearance:

Light yellow powder

Total Nitrogen:

Not less than 14%

Solubility:

Easy soluble in water

PH value:

5.0-7.0

Loss on drying:

Not more than 5%

Residue on ignition:

Not more than 4%

Average molecular weight:

15000-27000

Hg (mg/kg):

Not more than 0.02mg/kg

As (mg/kg):

Not more than 0.5mg/kg

Pb mg/kg:

Not more than 1.0mg/kg

Aerobic bacterial count:

Not more than 50/g

Fecal coliforms

Negative

Pseudomonas aeruginosa

Negative

Staphylococcus aureus

Negative

Particle size:

100% pass 80 mesh sieve