The invention discloses a test method of a high-purity aluminum
alloy. The test method of the high-purity aluminum
alloy comprises the following steps: 1)
cutting a high-purity aluminum
alloy sample into pieces, and carrying out
impurity removal pretreatment; 2) weighing the pretreated high-purity aluminum alloy sample, adding a corrosive liquid for
corrosion, standing, and adding water for
dilution to form a mixed sample solution; 3) weighing the mixed sample solution, adding water to dilute the mixed sample solution, detecting the
granularity of the sample solution through a liquid particlecounter for at least three times, and taking an average value S1; and 4) adding water into
hydrochloric acid to form a
hydrochloric acid solution with the same proportion as the mixed sample solutionin the step (3), taking the
hydrochloric acid solution, adding water to dilute, detecting through a liquid
particle counter, detecting for at least three times, taking an average value S2, and calculating the
granularity of the sample. According to the test method of the high-purity aluminum alloy, the
corrosion time of a high-purity aluminum alloy sample is shortened, the detection efficiency isimproved, the possibility that sample liquid is polluted is reduced, and data are more stable.