| Test |
Specification |
Actual value |
| Assay | min. 85.0 % | 85.7 % |
| Alkali phosphates | passes test | passes test |
| Chloride (Cl) | max. 1 ppm | < 1 ppm |
| Color (APHA) | max. 10 | < 10 |
| Heavy Metals (as Pb) | max. 0.001 % | < 0.001 % |
| Insoluble Matter | max. 0.001 % | < 0.001 % |
| Nitrate (NO3) | max. 5 ppm | < 5 ppm |
| Phosphorous or Hypophosphorous Acid | passes test | passes test |
| Reducing Substances | passes test | passes test |
| Sulphate (SO4) | max. 0.003 % | < 0.003 % |
| Volatile Acids (as CH3COOH) | max. 0.001 % | < 0.001 % |
| Trace Impurities (in ppm) | | |
| Aluminium (Al) | max. 10 | < 10 |
| Antimony (Sb) | max. 4 | < 4 |
| Arsenic (As) | max. 0.5 | < 0.5 |
| Cadmium (Cd) | max. 5 | < 5 |
| Calcium (Ca) | max. 20 | < 20 |
| Copper (Cu) | max. 5 | < 5 |
| Iron (Fe) | max. 10 | < 10 |
| Lead (Pb) | max. 5 | < 5 |
| Magnesium (Mg) | max. 10 | < 10 |
| Manganese (Mn) | max. 0.5 | < 0.5 |
| Nickel (Ni) | max. 5 | < 5 |
| Potassium (K) | max. 5 | < 5 |
| Sodium (Na) | max. 10 | < 10 |
| Zinc (Zn) | max. 10 | < 10 |
