BP-D

This special-use surface tensiometer measures dynamic surface tension of surfactant solutions, using the maximum bubble pressure method.

Measurement method
 BP-D5BP-D5L
  Maximum bubble pressure method
Measurement range Surface tension: 10 - 100 mN/m, Lifetime: 20 - 5000ms (Fixing mode: 20 - 1000ms)
Resolution Surface tension: 0.01mN/m, Lifetime: 0.1ms
Repeatability 0.5mN/m (standard deviation based on manufacturer's standard)
Measurement temp +10 - 70ºC (by optional hot/cold water circulator 4VT)
Sample volume About 80mL (exclusive lab dish is used.)
Sample viscosity 0.5 - 10mPa · s
Dimensions (main body) 320(W) x 315(D) x 475(H) mm 321(W)×223(D)×422(H)mm
Weight (main body) 18.5 kg 11 kg
Utilities AC100 - 240V, 50/60Hz, 50W, 80VA, Pressurized dry air 0.4-0.7Mpa
Operating environment Room temp. 15~30℃, Humidity 30~80%RH non condensing
Comparison between BP-D5 and BP-D5L
 BP-D5BP-D5L
Stage up/down movement Automatic Manual
Liquid surface detection by probe Automatic Automatic (Software notifies with beep sound)
Probe immersion Automatic Manual by one-touch lever
Bubble generation Automatic Manual (Leaving open bubble)
Constant life time measurement Available Not available
Temperature sensor Built-in Option
Jacket type stage Built-in Option