ISO 5627 ISO8791 BEKK Smoothness Measuring Tester , High Performance & Precision
High-performance smoothness measurement instrument compliant with ISO 5627 and ISO 8791 standards. Features advanced microcomputer technology, high-precision sensors, and an oil-free vacuum pump for reliable testing performance.
The PN-BST Bekk Smoothness Tester is a professional instrument developed according to ISO standards for measuring the smoothness of paper and cardboard using the Bekk method. Bekk smoothness measures the time in seconds required to draw a defined quantity of air at atmospheric pressure between the test piece surface and a ring-shaped plane surface under specified contact conditions.
This method is suitable for a wide range of papers and boards, particularly recommended for smooth papers and boards. Note that for extremely smooth samples, measurement times may be extended.
Paper and paperboard smoothness testing
ISO 5627; ISO 8791
| Parameter | Specification |
|---|---|
| Power Supply | AC220V±10% 50HZ |
| Precision | 0.1s; Testing range: 1~99999 s |
| Measuring Range | 10±0.05cm² |
| Pressure | 100kpa±0.5kpa |
| Display | English menu and LCD screen |
| Printer | Thermal printing, high speed and no noise |
| Communication Output | Standard RS232 interface |
| Vacuum Container Volume | Big vacuum container: 380±1ml Small vacuum container: 38±1ml |
| Vacuum Setting Range | >300S: 50.66～48.00 kPa 15-300S: 50.66～48.00 kPa <15S: 50.66～29.33 kPa |
| Air Discharge Volume | Big vacuum container: 10±0.15ml Small vacuum container: 1±0.04ml |
| Ambient Conditions | Temperature: 10~30°C, Relative humidity <85% |
| Dimensions & Weight | 370mm × 330mm × 390mm / 30kg |
- Oil-free vacuum pump system
- Selectable pre-pressing time
- Rapid measurement capability
- Enhanced sealing performance
- Integrated thermal printer
- PLC display interface
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