The main purpose

The liquid surface tension tester is suitable for measuring the surface tension of surfactants, organic solvents and mixtures containing one or more surfactants and pure liquids or solutions.

Instrument characteristics

1. Platinum ring test principle, simple and convenient operation;

2. Automatic digital measurement reduces human operation errors;

3. Full range clearing: one-key clearing, complete in an instant, zero drift free;

4. Full range automatic calibration: accurate and reliable data, excellent repeatability;

5. During the platinum plate test, the displayed value is the surface/interface tension value of the sample, and there is no need to calculate it again; during the platinum ring test, it has a peak hold function, which needs to be calculated by Exce or automatically converted to surface/interface tension through data processing software value;

6. The instrument has a compact structure and works independently without any additional equipment (such as an external computer, etc.);

7. It can measure the changes in the surface tension of the sample due to different time (especially when there are surfactants or volatile substances, only in the platinum plate test mode);

8. Automatically measure medium and high viscosity liquid samples and get accurate balance results (limited to platinum plate test mode);

9. It can measure the interfacial tension between incompatible liquids such as oil/water interface;

10. It can completely replace the traditional mechanical surface tension meter;

11. Except for the manual control of the lifting and lowering of the sample platform, the main structure and technical parameters of this series of instruments are similar to those of the QBZY series, with high-quality design, economical price and extremely high cost performance.

Technical index

Test mode: platinum ring

Measuring range: 0-400 mN/m

Measurement accuracy: 0.01 mN/m

Accuracy error: 0.04 mN/m

Repeatability error: 0.04 mN/m

Sample constant temperature range: 0-100℃

Applicable standards

GB/T 5549-2010 Surfactant Use to pull up liquid film to measure surface tension