POWEREACH JK99 Series Automatic Surface Tensiometer
| Brand | POWEREACH |
|---|---|
| Origin | Shanghai, China |
| Model | JK99 Series |
| Measurement Range | 0–500 mN/m (JK99F & JK99M: 0–1000 mN/m) |
| Resolution | 0.01 mN/m |
| Accuracy | ±0.01 mN/m |
| Measurement Methods | Du Noüy Ring Method & Wilhelmy Plate Method |
| Sensor Type | Imported Japanese load cell (JK99B/C/D), METTLER high-precision balance sensor (JK99M) |
| Temperature Sensing Accuracy | ±0.1 °C |
| Power Supply | AC 220 V ±5 V, <150 W |
| Compliance | GB/T 22237–2008, GB/T 5549–2010, GB/T 6541–1986 |
Overview
The POWEREACH JK99 Series Automatic Surface Tensiometer is a precision instrument engineered for the quantitative determination of surface tension and liquid–liquid interfacial tension using two internationally standardized physical methods: the Du Noüy ring method and the Wilhelmy plate method. Based on the principle of force measurement via tensiometric balance—where surface or interfacial tension is derived from the vertical force exerted on a calibrated platinum probe immersed at the air–liquid or liquid–liquid interface—the JK99 series delivers high reproducibility, long-term stability, and traceable metrology. Designed for routine QC laboratories, R&D centers, and academic institutions, it supports dynamic measurements over time and concentration gradients, enabling critical characterization of surfactant systems, emulsions, polymer solutions, and complex fluids such as inks, coatings, crude oils, and pharmaceutical formulations.
Key Features
- Automated zero calibration and full-cycle measurement with one-touch operation—eliminating manual intervention and reducing operator-induced variability.
- Dual-method compatibility: Platinum ring (sample volume 40–50 mL) and platinum plate (20–30 mL) configurations, both compliant with ISO 1409, ASTM D971, and DIN 53914 standards.
- High-resolution force detection: 0.01 mN/m resolution and ±0.01 mN/m accuracy across the full 0–500 mN/m range (0–1000 mN/m for JK99F and JK99M models), enabled by imported Japanese load cells or METTLER-certified microbalance sensors.
- Integrated thermal management: Standard circulation-heating platform compatible with external thermostatic baths; optional electric temperature control (up to 200 °C) with embedded Pt100 sensor (±0.1 °C accuracy).
- Modular hardware architecture: Touchscreen LCD interface (standard on JK99C, JK99D, JK99F2, JK99M), roll-type thermal printer (optional or standard per model), and RS232/USB connectivity for PC-based data acquisition and long-term curve logging.
- Comprehensive software suite: Preloaded correction algorithms (e.g., Harkins–Jordan, Zuidema–Waters), real-time tension vs. time plotting, automatic CMC calculation (on JK99D/M), and audit-ready data export (CSV, PDF, XML).
- Robust mechanical design: Vibration-damped platform, ABS or aluminum–stainless steel chassis, and built-in leveling system ensure stable operation in shared lab environments.
Sample Compatibility & Compliance
The JK99 series accommodates low-to-medium viscosity liquids—including aqueous surfactant solutions, organic solvents, polymer melts, paints, inks, crude oil fractions, and biological fluids—without requiring chemical modification or dilution. Its dual-probe methodology ensures reliable results across diverse interfacial systems (e.g., water–hexane, silicone oil–water, molten polymer–air). All models conform to national standards GB/T 22237–2008 (surface tension of surfactant solutions), GB/T 5549–2010 (interfacial tension by ring method), and GB/T 6541–1986 (petroleum products), and are functionally aligned with ISO 4382, ASTM D1331, and OECD Test Guideline 115 for regulatory submissions. Optional modules extend compliance to GLP/GMP workflows, including 21 CFR Part 11–compliant electronic signatures, audit trails, and user-access controls when operated with validated software configurations.
Software & Data Management
The proprietary POWEREACH Tensiometry Suite provides intuitive Windows-based control, real-time visualization of force–distance curves, and automated parameter extraction (equilibrium tension, adsorption kinetics, CMC, diffusion coefficients). Data files include timestamped metadata (operator ID, ambient RH, temperature, probe type, calibration status), supporting traceability under ISO/IEC 17025. Export formats comply with LIMS integration requirements. For regulated environments, optional validation packages include IQ/OQ documentation, calibration certificate templates, and electronic record retention protocols. Remote diagnostics and firmware updates are supported via secure HTTPS channel.
Applications
- Surfactant research: Critical micelle concentration (CMC) determination, adsorption isotherms, and aging behavior of formulation systems.
- Coatings & inks: Wetting assessment, substrate compatibility analysis, and dispersion stability monitoring.
- Petroleum & energy: Interfacial tension between reservoir brine and enhanced oil recovery (EOR) agents; asphaltene aggregation kinetics.
- Pharmaceuticals & cosmetics: Emulsion stability prediction, excipient screening, and liposome membrane characterization.
- Academic teaching: Hands-on demonstration of interfacial thermodynamics, Gibbs adsorption equation validation, and Langmuir monolayer modeling.
- Quality control: Batch-to-batch consistency verification for detergents, wetting agents, and functional fluids per internal SOPs or industry specifications (e.g., ASTM D1148, ISO 13321).
FAQ
What measurement principles does the JK99 Series employ?
It applies the Du Noüy ring and Wilhelmy plate methods—both grounded in classical tensiometry—and calculates surface or interfacial tension from the measured force at equilibrium, corrected for buoyancy and geometry.
Is the instrument suitable for high-viscosity samples?
Yes—optimized mechanical design and force-sensing architecture enable reliable measurements up to ~5000 mPa·s, making it appropriate for paints, resins, and heavy fuel oils.
Can the JK99 be integrated into an automated lab workflow?
All models support RS232 and USB communication; optional LabVIEW drivers and OPC UA interfaces are available for integration with SCADA or MES platforms.
Does the system meet regulatory data integrity requirements?
When configured with audit-trail-enabled software and validated peripherals, it supports ALCOA+ principles and satisfies FDA 21 CFR Part 11, EU Annex 11, and ISO 13485 documentation expectations.
What calibration standards are included?
Each unit ships with a certified set of calibration weights (ring code), distilled water reference standard, leveling tool, and platinum probe verification protocol aligned with ISO 9001 internal calibration procedures.
