A.< 0.02mg/L(< 16ppm)B.< 0.03mg/L(< 24ppm)C.< 0.04mg/L(< 32ppm)
A.18.5%~23.5%(v/v)B.19.5%~23.5%(v/v)C.19.5%~24.5%(v/v)
A.0.1%(v/v)B.< 0.2%(v/v)C.< 0.5%(v/v)D.1.0%(v/v)