Table 1

Test condition of DDT

Item

Specification

Test voltage [kV]

DC+3

Test liquid

Deionized or distilled water with NaCl

Conductivity [mS/cm]

0.1, 1, 4, 8, 12, and 16

Temperature of test liquid [°C]

23 ± 3

Dropping rate [drops/min]

12, 24, 36, 48, and 60

Seo et al. Nanoscale Research Letters 2012 7:4   doi:10.1186/1556-276X-7-4