This instrument is designed in accordance with ISO 6295, ISO 1409, ASTM D1417, EN 14370, and other test methods for measuring interfacial tension of petroleum products between oils and water (Ring Methods).
It is suitable for determining interfacial tension between mineral oils and water under non-equilibrium conditions (liquid-liquid interface). It can also be used to determine the surface tension of various liquids (liquid-gas interface).
Standards
ISO 6295
ISO 1409
ASTM D1417
EN14370
Technical Specification
Equipped with an advanced electromagnetic balanced force sensor, the instrument provides highly precise and reproducible testing results
A large (5") touch screen displays the current environmental temperature, current tension, peak tension, equivalent tension, etc., making it easy to operate.
Built-in testing methods include both platinum ring and platinum plate, allowing the operator to choose either or both
Fully automatic operation eliminates all human error. The platinum plate locks the liquid interface automatically, the platinum ring shows the tension curve, and peak tension is locked automatically. The screen directly displays the tension values without any conversion
Automatic full-range calibration includes weight calibration, pure water tension, and ethanol tension
An elaborate ball screw lift system operates without noise, and its rising and falling speed can be adjusted
The lifting bracket is designed for easy installation and disassembly of the platinum ring and platinum plate
The operator can calibrate the force value at any time using a standard weight
One-button peeling function ensures no drift at zero point and stable data display
Automatic compensation for environmental temperature: using water and ethanol as standards, the tester automatically converts the sample's tension value to the equivalent at 20°C
Main Technical Parameters
Ordering Information →
BGD 234-1
BGD 234-2
Measurement range
0-1000
0-1000
Resolution (mN/m)
0.1
0.01
Accuracy (mN/m)
0.1
0.01
Repeatability (mN/m)
0.1
0.01
Balance precision (g)
0.001
0.0001
Testing Methods
Design platinum plate and platinum ring, either one or both
