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ITEM | STANDARD | TEST RESULT | TEST METHOD |
Purity(on a dry matter basis) | ≥98.5% | 98.90 | GBT21979-2008 |
RESIDUE ON IGNITION % | ≤0.5% | 0.08 | GB/T6438 |
LOSS ON DRYING | ≤1.0% | 0.18 | GB/T 6435 |
SPECIFIC ROTATION [α]D20ºC | -260 - -290 | -28.05 | GBT21979-2008 |
HEAVY METALS (AS Pb) | ≤20PPM | Conform | GB/T 13080 |
ARSENIC (As) | ≤2PPM | Conform | GB/T 13079 |