| Name of index | GB14889-94 | BP93 | BP98 |
| Appearance | White or light yellow crystal or powder | White or light yellow crystal or powder | White or light yellow crystal or powder |
| Content(K3C6H5O7) ≥% | 99.0 | 99.0-101.0 | 99.0-101.0 |
| Heavy metal(AsPb) ≤% | 0.001 | 0.001 | 0.001 |
| AS ≤% | 0.0003 | - | 0.0001 |
| Loss on drying % | 3.0-6.0 | - | - |
| Moisture% | - | 4.0-7.0 | 4.0-7.0 |
| Cl ≤% | - | 0.005 | 0.005 |
| Sulphate Salt≤% | - | 0.015 | 0.015 |
| Qxalate Salt≤% | - | 0.03 | 0.03 |
| Sodium ≤% | - | 0.3 | 0.3 |
| Alkalinity% | Accord with the test | Accord with the test | Accord with the test |
| Readily Carbonisable Substances | - | Accord with the test | Accord with the test |
| Transparenly and color of sample | - | Accord with the test | Accord with the test |
| Pyrogens | - | - | Accord with the test |
6. Usage: In food processing industry, it is used as buffer, chelating agent, stabilizer, antibiotic oxidizer, emulsifier, flavor. Used in dairy product、jellies、 jam、 meat、 tinned、pastry. Used as emulsifier in cheese and used in citrus freshening. In pharmaceutical industry, it is used for curing hypokalimia, potassium depletion and alkalization of urine.
7. Packing: In 25kgs net paper bags lined with PP bags.
8. Storage and transport: To be stored in a tightly-closed, dry and ventilative warehous. Kept away from moisture, heat.and poisonous substance. Handled with care.