Product Brief
The N600C Carbon Paper Air Permeability Rate Tester is designed and developed in accordance with GB/T 20042.7-2014. Adopting the differential pressure method as its testing principle, it is professionally used for measuring the air permeability rate of various types of carbon paper for proton exchange membrane fuel cells (PEMFC).
Testing Principle
Based on the differential pressure method, the sample is placed between two fixtures, forming a constant differential pressure on both sides of the sample. Driven by the differential pressure, gas flows from the high-pressure side through the sample to the low-pressure side. The air permeability rate of the carbon paper is calculated based on the transmission flow rate, sample thickness, test area, and test differential pressure.
Executed Standards
GB/T 20042.7-2014
Technical Parameters
| Item | Technical Parameters |
|---|---|
| Test Range | 0~200,000 mL·mm/(cm²·h·mmHg)0~14,701 mL·mm/(cm²·hr·mmAq) |
| Resolution | 0.1 mL·mm/(cm²·h·mmHg)0.1 mL·mm/(cm²·hr·mmAq) |
| Pressure Range | 0~500 Pa (other ranges available upon request) |
| Pressure Resolution | 0.1 Pa |
| Pressure Accuracy | 0.1% FS (Full Scale) |
| Flow Range | 0~50 L/min (other ranges available upon request) |
| Flow Resolution | 1 mL/min |
| Flow Accuracy | 1% FS (Full Scale) |
| Test Area | 16 cm² |
| Instrument Dimensions | 410 mm×295 mm×365 mm |
| Power | 100 W |
| Power Supply | 110~250 VAC, 50~60 Hz |
Product Features
• The instrument's differential pressure is adjustable within the range of 0~500 Pa, with an accuracy of 0.1% FS, fully meeting the test pressure requirements of different samples;• The test range can be customized according to different sample requirements;• Arbitrary pressure adjustment, fully automatic operation, and automatic measurement and calculation of results;• Equipped with a color touch screen, no external computer required;• Built-in micro-printer for real-time printing of test reports;• The upper computer software is designed in accordance with the new GMP Appendix "Computerized Systems", supporting functions such as hierarchical permission management, audit trail, and electronic signature (optional).

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