Automatic Interfacial Tension Tester

Purpose:
The instrument is designed and made as per ASTM D971 and GB/T6541 “Test Methods for Interfacial Tension of Petroleum Products between Oils and Water (Ring Methods)”. It is suitable to determine interfacial tension between mineral oils and water under non-equilibrium conditions (Liquid-liquid interface). It can also be used to determine surface tension of various liquids (liquid-gas interface).

Technical specifications
1. Measurement range:
(1) For insulating oils: 2～100mN/m;
(2) For other liquids: 2～200mN/m;
2. Sensitive: 0.1mN/m;
3. Accuracy: 0.1mN/m;
4. Resolution: 0.1mN/m;
5. Repeatability: 0.3%;
6. Ambient temperature: 10～30℃ (Representative is 25 ℃);
7. Humidity: (20～75)% RH
8. Power supply: AC 220V±5%, 50Hz;
9. Power: 20 VA;
10. Size: 185×260×360;
11. Weight: 15 kg;