High-performance weighing sensor utilizing the electromagnetic force balance principle, providing accurate measurements and excellent repeatability.Compatible with both platinum plate method and platinum ring method.Fully automatic measurement with one-click value retrieval.Range calibration and accuracy calibration functions ensure long-term precise measurement.Save data and print directly.Chinese/English language switchable.

I. Main Features of Fully Automatic Surface Tensiometer / Interfacial Tensiometer / HSY920:

HSY920 is an upgraded product of our previously manufactured HSY-810, HSY-811, HSY-812, HSY-820, etc., with significantly improved performance.
* Equipped with a 4.3-inch touch screen, all operations and information are completed or displayed on the screen;
* Sensor based on electromagnetic force balance principle, offering high sensitivity, high precision, and high repeatability;
* Compatible with both platinum plate method and platinum ring method;
* Fully automatic measurement, no calculation required, directly displays surface tension or interfacial tension values;
* One-click zeroing, one-click calibration; digital processing technology, no deviation;
* Users can calibrate data with standard samples (distilled water and pure ethanol) to ensure measurement accuracy;
* Real-time display of measurement curves, save measurement results, print key parameters, data, and curves;
* Transparent acrylic wind shield for convenient operation and reduced environmental requirements;
* Password management function ensures data traceability and prevents data modification or accidental deletion;
* Chinese/English language switchable operation

Complies with EU, ISO, DIN, ASTM standards for surface and interfacial tension, as well as relevant domestic standards.

ASTM D971 Standard Test Method for Interfacial Tension of Oil/Water by Ring Method

ASTM D1331 Standard Test Methods for Surface and Interfacial Tension of Surfactant Solutions

ASTM D1417 Standard Test Methods for Rubber Latices—Synthetic

DIN EN 10 Surfactants—Determination of Interfacial Tension of Surfactant Solutions by Stirrup or Ring Method

DIN EN 14370 Surfactants—Determination of Surface Tension

ISO 304 Surfactants—Determination of Surface Tension by Drawing a Film

ISO 1409 Plastics/Rubber—Polymer Dispersions and Rubber Latices (Natural and Synthetic)—Determination of Surface Tension by Ring Method

ISO 4311 Anionic and Non-ionic Surfactants—Determination of Critical Micelle Concentration—Method by Measuring Surface Tension with Plate, Stirrup, or Ring

OECD 115 OECD Guidelines for Testing Chemicals: Surface Tension of Aqueous Solutions

ISO 6889 Surfactants—Determination of Surface Tension by Drawing a Film

GB/T22237-2008 Determination of Surface Tension of Surfactants
JB/T9388-2002 Technical Specifications for Interfacial Tensiometers
JB/T18396-2001 Determination of Surface Tension of Natural Latex by Ring Method
SH/T1156-95 Determination of Surface Tension of Synthetic Latex
GB/T6541-86 Petroleum Products—Determination of Interfacial Tension of Oil Against Water (Ring Method)
ISO1409-1995 Plastics, Rubber, Polymer Dispersions, and Latices—Determination of Surface Tension
ISO6295-1983 Petroleum Products—Determination of Interfacial Tension of Mineral Oils Against Water (Ring Method)
GB/T5549(ISO304-1985) Determination of Surface Tension by Pulling Film Method

GB 15308-2006 Foam Fire Extinguishing Agents

GBT 11276-2007 Surfactants—Determination of Critical Micelle Concentration

GB-T 22237-2008 Surfactants—Determination of Surface Tension

etc.

Main Technical Parameters of Fully Automatic Surface Tensiometer / Interfacial Tensiometer:

Platinum Ring Dimensions: Wire radius 0.185mm, ring radius 9.55mm, ring circumference 60mm

*Note: Standard configuration includes only one platinum plate or one platinum ring; please specify when ordering. If the budget allows, it is recommended to configure both platinum plate and platinum ring.

**Note: Printer is not included as standard; purchase separately as needed.