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N900 Textile Air Permeability Tester
Introduction
N900 Textile Air Permeability Tester is developed in accordance with GB/T 5453-1997 . It is a high-precision testing instrument integrating machinery, electronics and software. High-precision pressure sensors are adopted to replace the traditional water column differential pressure method for higher accuracy of test data. It features LCD display and touch screen operation. Test parameters can be set digitally for convenient and fast operation.
It is suitable for air permeability testing of various textile fabrics, including industrial fabrics, nonwovens and other breathable textile products. Through the air permeability test results of textiles, the air permeability performance of different fabrics can be compared. Meanwhile, it provides numerical reference for air permeability of special fabrics such as parachutes, sails and spacesuits.
Test Principle
Air permeability refers to the property of air passing through fabric. It is expressed as the rate of airflow vertically passing through the sample under specified test area, pressure drop and time conditions.
Under specified differential pressure conditions, measure the airflow volume vertically passing through the given area of the sample within a certain period of time, and calculate parameters such as air permeability.
Standards
GB/T 5453-1997, ISO 9237-1995, GOST ISO 9237-2013, GB/T 10655-2003, QB/T 2799-2006, ISO 4638-1984, ASTM D737-2004(2016)
Technical Parameters
| Differential Pressure Measurement Range | 1～5000 Pa (customizable pressure drop) |
| Measurement Error | ≤±2% |
| Measurable Air Permeability | 1～5000 mm/s |
| Specimen Size | 150 mm×150 mm |
| Effective Test Area | 5 cm2, 20 cm2, 50 cm2, 100 cm2 |
| Sample Thickness | ≤10 mm |
| Measurement Units | mm/s, L/(dm²∙min), L/(m²∙s), m³/(m²∙min), m³/(m²∙h), cfm, cm³/(cm²∙h), mL/s, mL/min, L/s, L/min |
| Overall Dimension | L×W×H: 380mm×640mm×865mm |
| Weight | 50 kg |
| Power Supply | AC 220 V , 50 Hz |
Product Features
- High-precision laboratory test equipment integrating machinery, electronics and software, designed and manufactured in accordance with GB/T 5453 and other standards.
- The default test area is 20cm2, and optional test areas including 5cm2, 50cm2 and 100cm2 are available to meet the test requirements of samples with different sizes.
- Differential pressure can be adjusted arbitrarily; fully automatic operation for automatic measurement and result calculation.
- The main unit is equipped with a color touch screen, no external computer required, real-time observation of sample air permeability.
- Supported by professional software with simple and intuitive interface for easy operation. Test data (temperature, humidity, differential pressure, air permeability) is displayed dynamically in real time, and multi-unit conversion is available.
- Continuously test multiple groups of data; query or delete single or multiple test results and print reports.
- Automatically generate standard test reports, including sample name, specification, serial number, ambient temperature and humidity, test area and pressure drop, executed standards, test date and test results.
Application
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Woven Fabric |
Woven fabrics |
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Knitted Fabric |
Knitted fabrics |
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Nonwoven Fabric |
Nonwovens |
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Parachute |
Parachutes |
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Sail |
Sails |
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Spacesuit |
Spacesuits |
