Battery grade(E)

High purity grade (H)

Technical grade(I)

Purity (Gas chromatographic method)

≥ 99.95%

≥ 99.90%

≥ 99.50%

Carbonic ester content (Gas chromatographic method)

≥ 99.99%

≥ 99.97%

≥ 99.95%

Methanol and ethyl alcohol content (Gas chromatographic method)

≤ 20ppm

≤ 100ppm

≤ 200ppm

Moisture (Karl Fischer method)

≤ 20ppm

≤ 100ppm

≤ 200ppm

Color (Pt-Co method)

≤ 5APHA

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Metal impurities

Note: upon customer's request;