The platinum ring method is a traditional testing method with a history of approximately 70 years. It uses a platinum wire with a diameter of 0.37mm to form a ring with a circumference of 60mm. During the test, the platinum ring is first immersed 2-3mm below the liquid surface (or the interface of two immiscible substances), and then slowly lifted upward. A film will form between the ring and the liquid surface. This film exerts a downward pulling force on the platinum ring. The maximum force exerted by the film on the ring during the entire lifting process of the platinum ring is measured, and then converted into the actual surface (interfacial) tension value.

The HTCZ-600 automatic surface and interfacial tension meter achieves accurate measurement of the surface tension value of liquids based on the 【principle of the platinum ring method】, and is widely used in industries such as chemical engineering, petroleum, electric power, scientific research, and railways..

Main Functions:

  1    It adopts a powerful new-generation microprocessor for fully automatic measurement of sample tension values；

  2    240X128 dot matrix Chinese LCD display, Chinese prompt menu operation；

  3    The surface of the appearance has undergone electrostatic plastic spraying treatment, which is corrosion-resistant and easy to clean；

  4    The host is equipped with a wind shield to prevent the measurement results from being affected during the measurement process；

  5    It has an automatic temperature compensation function at 25℃, which solves the influence of temperature on the measured tension value；

  6    The instrument automatically zeros, automatically measures, calculates, and displays experimental results, and has a power-off storage function；

  7    The instrument lifting platform can automatically lift, with smooth operation, low noise and good accuracy；

  8    A closed magnetic tank sensor is used, and equidistant multi-point calibration is adopted, which improves the repeatability and reproducibility of the measurement results；

  9    It can work independently, and can also be connected to laptops and microcomputers via USB or RS232 interfaces to achieve networked management；

Instrument Standards:

   GB6541-1986″Determination of Oil-to-Water Interfacial Tension of Petroleum Products (Ring Method)”

   ISO 6295-1983″Determination of Interfacial Tension Between Petroleum Products, Mineral Lubricating Oils and Water by the Ring Method”

   JB/T 9388-1997 Technical Specifications for Interface Tensiometer

   ISO1409-1995  Determination of Surface Tension of Plastics, Rubbers, Polymer Dispersions and Latices

   SH/T1156-92 Method for Determination of Surface Tension of Synthetic Latex

  GB/T 5549ISO 304-1985″Determination of Surface Tension by the Pulled Liquid Film Method for Surfactants”

   ISO 4311-1979the requirements of standards such as “Method for Determining Surface Tension by Ring Method for Anionic and Nonionic Surfactants”。

   GB/T 22237-2008 Surfactants: Determination of Surface Tension

   JB/T 18396-2001  Natural latex – determination of surface tension by the ring method

   as well as standards such as ISO14090-82, ASTM D1417, EN14370, ZB2025-93, and GB2960-82。

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