| Customization: | Available |
|---|---|
| Certification: | ISO9001, ISO |
| Application: | Vegetables, Flowers, Fruit |
|
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Audited Supplier Audited by an independent third-party inspection agency
Inspection Items |
Unit |
Superior |
First Grade |
Regular Grade |
| Nitrogen | %≥ | 21.0 | 21.0 | 20.5 |
| Sulfur | %≥ | 23.0 | 23.0 | 23.0 |
| Moisture | %≤ | 0.2 | 0.3 | 1.0 |
Free Sulfuric Acid |
%≤ | 0.03 | 0.05 | 0.2 |
| Fe | %≤ | 0.007 | ||
| As | %≤ | 2ppm | ||
| Pb | %≤ | 50ppm | ||
| Water-insoluble | %≤ | 0.01 | ||
| Appearance | , White Crystal, No Impurities | |||
| Serial No. | ITEM | SPECIFICATIONS | Result of Analysis |
| 1 | Appearance | White crystal | White crystal |
| 2 | N Content % ≥ | 21.00% | 21.70% |
| 3 | Water(H2O) % ≤ | 0.30% | 0.22% |
| 4 | Free acid (H2SO4)Content % ≤ | 0.05% | 0.005% |
| 5 | FE % ≤ | 0.007% | Pass Test |
| 6 | AS % ≤ | 0.00005% | Pass Test |
| 7 | Heavy Metal(AS PB)% ≤ | 0.005% | Pass Test |
| 8 | Water insolubles content % ≤ | 0.010% | Pass Test |
| Conclusion:All items are in conformity with the GB535-1995. | |||
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