Author: elsa

W~ha~ts~Ap`p+86 18~56~1~73`~52~6`5 Test Item Superior Grade Result Chroma,(Platinum-Cobalt) ≤20 15 Purity ≥99.5 99.8 Density(200C),g/cm3 0.981-0.985 0.9824 Acidity(calculated by phthalic acid),% ≤0.02 …