鑒別                            顯鉀鹽和乳酸鹽的鑒別反應(yīng)
色度                            ≤100APHA
含量                            60-61%
立體化學純度                    ≥95%
PH(1mol/L溶液)                  6.5-7.5
密度（20℃）                     1.32-1.35g/ml
鐵鹽                            ≤0.001%
氯化物                          ≤0.05%
鈣鹽                            ≤0.002%
硫酸鹽                          ≤0.005%
重金屬（以Pb計）               ≤0.001%
砷鹽                             ≤0.0002%
還原糖                           通過FCC實驗
草酸鹽.硫酸鹽.酒石酸鹽.檸檬酸鹽  通過FCC實驗
氰化物                           ≤0.00005%
甲醇/甲酯                        ≤0.025%
鉛                               ≤0.0005%
鈉鹽                             ≤0.1%