Air permeability testing machine is to test the air permeability of various woven fabrics, including industries fabrics, non-woven and other breathable fabric.
Features
Manual clamp sample and replace nozzle.
Microprocessor processed, test results directly displayed.
Built-in continuous test mode, test units can be switched based on demands.
English touch screen menu operation, equipped with computer port.
Test Standards
GB/T5453 GB/T13764 ISO9237 ISO7231 ISO5636 ASTM D737 DIN 53887 JIS L1096 BS5636
Key Parameters
Model
M027A
Operation display
Touch screen
Pressure difference range
1-4000Pa
Permeability range
0.1~12000mm/s
Measuring error
≤±2%
Fabric thickness
≤12mm
Testing area
5cm2, 20cm2, 50cm2, 100cm2
Ф50mm(≈19.6cm2), Ф70mm(≈38.5cm2)
Nozzle parameter
No.
0
1
2
3
4
5
6
7
8
9
10
Φ(mm)
0.8
1.2
2
3
4
6
8
10
12
16
20
Power supply
AC 220V 50/60HZ, 2KW
Dimensions
700 x 520 x 1100mm (L x W x H)
Weight
93kg
Comparison
1 Air-permeability Standards / Method Comparison
Reference
Title
Scope / application
Status / note
ISO 9237:1995
Textiles — Determination of the permeability of fabrics to air
Most fabrics, including industrial fabrics for technical purposes, nonwovens and made-up textile articles that are permeable to air.
Current ISO listing; reviewed and confirmed in 2023.
ASTM D737-18(2023)
Standard Test Method for Air Permeability of Textile Fabrics
Woven, nonwoven, air-bag, blanket, napped, knitted, layered and pile fabrics; treated and untreated fabrics are included.
ASTM lists the 2023 revision as active and notes use for commercial acceptance testing.
ISO 7231:2023
Polymeric materials, cellular, flexible — Determination of air flow value at constant pressure-drop
Flexible cellular polymeric materials; includes conventional materials and especially low-permeability materials. Method B includes manual and automatic measurement.
Relevant to cellular polymeric materials rather than textile fabric air permeability.
2Air-permeability Standards / Method Comparison
Nozzle Group
Pore Size Range
Throttling Resistance
Suitable Air Permeability Grade
Typical Samples
Small-hole nozzle
0.8~3mm
High
Low breathability
Coated fabrics, films, tightly woven fabrics, filter paper
Medium-hole nozzle
4~10mm
Medium
Medium breathability
Standard woven/knitted fabrics, conventional nonwovens
11 orifice sizes (0.8/1.2/2/3/4/6/8/10/12/16/20 mm), corresponding to the full range of No. 0–10 nozzles
11 orifice sizes (0.8/1.2/2/3/4/6/8/10/12/16/20 mm), corresponding to the full range of No. 0–10 nozzles
Nozzle Replacement
Manual Replacement
Automatic replacement; supports automatic detection of the test area
Dimensions
(L × W × H)
700 × 520 × 1100 mm
1000 × 400 × 960 mm
Total Weight
93kg
90kg
Industries
To test the air permeability of various woven fabrics, including industries fabrics, non-woven and other breathable fabric.
Why Choose This Tester
• Digital automatic calculation
The test data are calculated by the computer, eliminating the need for manual table conversion. The instrument uses a high-precision differential-pressure sensor in place of the traditional differential-pressure test approach.
• Adjustable nozzles
Nozzles can be selected according to the measurement range. The nozzle set covers No. 0–10 with diameters from 0.8 mm to 20 mm.
• Automatic sample clamping
The sample fixing device is cylinder-controlled and automatically presses the specimen when the test starts, helping maintain a tight fit during the measurement.
• Touchscreen + PC connectivity
A high-definition color touch screen is provided. The instrument can operate online with a computer and automatically draw a real-time test-data curve.
• Flexible parameter setup
Users can directly enter test parameters and select units. This interface supports the configuration of sample area, air permeability units, sample pressure difference, number of nozzles, and number of test samples.
• Built-in Report Generation Workflow
Features direct data querying, output to a mini-printer, printable test reports, and the ability to export detailed test report files.
• Multiple Statistical Outputs
Printed reports can include test values, averages, root mean square error, coefficient of variation (CV) values, and 95% confidence intervals.
• Extensive Test Area and Range Coverage
The system supports six test area options, with a pressure difference range of 1–4,000 Pa and a nominal permeability range of 0.1–12,000 mm/s.
FAQ
Q: What is the pressure-difference range?
A:Pressure-difference range is 1–4000 Pa.
Q: What is the stated permeability range?
A:Permeability range of 0.1–12000 mm/s and a measuring error of ≤ ±2%.
Q: Does the tester calculate results automatically?
A:Yes. The CPU calculates the test data automatically, reducing the need for manual table conversion. It also automatic feedback control of the suction fan.
Q: Can the tester print or export reports?
A:Yes. A micro thermal printer, direct printing of queried data, report output and export of detailed test report files.
Q: Can the tester connect to a computer?
A:Yes. The touch-screen instrument can operate online with the upper-computer software and draw real-time test-data curves automatically.
Q: How many test repetitions can be set?
A:The parameter interface allows the number of test-sample times to be entered from 1 to 20.
Q: Does this instrument have a calibration function?
A:Yes. It provides a password-protected calibration interface for calibrating the sample differential pressure sensor and the nozzle differential pressure sensor. We recommend contacting after-sales support for calibration instructions.
Q: What auxiliary equipment and installation requirements are listed?
A:A user-specified AC power supply and air compressor are required; no water supply, drainage, or exhaust is needed. We recommend using a constant temperature and humidity environment, and specify that the computer must run the Microsoft Windows operating system.