| Parameter | EC90% | EC95% | EC98% |
|---|---|---|---|
| Loss on drying | NMT 5.0% | NMT 5.0% | NMT 3.0% |
| Ash | NMT 3.0% | NMT 3.0% | NMT 1.0% |
| Heavy metals | NMT 10ppm | NMT 10ppm | NMT 10ppm |
| Lead (Pb) | NMT 2ppm | NMT 2ppm | NMT 2ppm |
| Arsenic (As) | NMT 1ppm | NMT 1ppm | NMT 1ppm |
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