This special-use surface tensiometer measures dynamic surface tension of surfactant solutions, using the maximum bubble pressure method.
Measurement method | Maximum bubble pressure method |
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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 - 80°C (by optional hot/cold water circulator 4VT) |
Sample volume | About 80mL (exclusive lab dish is used.) |
Sample viscosity | 0.5 - 10mPa · s |
Dimensions, weight | 320(W) x 315(D) x 475(H) mm, 18.5 kg (main body only) |
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 |