Interfacial Tensiometer

I. Product Introduction

This instrument is a dedicated testing device for measuring surface tension, interfacial tension and liquid density. It strictly complies with a number of national and international standards and is widely used for the related index testing of petroleum products, surfactants, natural latex and various other samples. The applicable standards include GB 6541-1986 "Petroleum products - Determination of interfacial tension of oil against water (ring method)", GB/T 22237-2008 "Surface active agents - Determination of surface tension", GB 18396-2001 "Natural rubber latex - Determination of surface tension by the ring method" and ISO 6295-1983 "Petroleum products - Mineral oils - Determination of interfacial tension of oil against water - Ring method".

II. Working Principle

The instrument is based on two classic measurement principles: the platinum ring method and the platinum plate method. Using a mechanical force measurement approach, a high-precision sensor captures the tension signal generated when the platinum ring or plate contacts the sample surface; the system then precisely calculates the surface/interfacial tension value. Liquid density is measured by a high-precision density sensing technique combined with a constant-temperature control module to ensure density measurement accuracy. The constant-temperature device uses a closed-loop temperature control system to stably maintain the temperature required for sample testing, providing a stable environment for index determination and ensuring reliability and repeatability of measurement data.

III. Features

1. Operating screen: equipped with a 10-inch large touch screen, convenient to operate with an intuitive interface.

2. Two measurement methods supported: either the platinum ring method or the platinum plate method can be freely selected.

3. Simultaneous surface/interfacial tension and density measurement: two measurement functions integrated, with no additional equipment required.

4. Fully automatic measurement with automatic lifting: the sample stage rises and lowers automatically, fully automatic throughout with no manual intervention.

5. Built-in printer: a built-in thermal printer automatically prints the measurement results.

6. Large data storage capacity: built-in high-capacity storage retains a large amount of measurement data over the long term.

7. Built-in constant-temperature device: a high-precision thermostatic module precisely controls the sample temperature.

IV. Technical Parameters