TQD-G1A Air Permeability Tester is applicable to the test of air permeability and air resistance of automotive interior decoration materials, such as polyurethane foam, PVC, leather, textiles, nonwovens etc. In addition, it can also be used to test the permeability of separation membrane, sponge, carpet, non-woven fabric, paper and leather. Through measurement, the performance control of materials is realized to meet the needs of practical application of products.
Product FeaturesNote1
- Two measurement methods of constant pressure difference and constant flow can be freely selected.
- High precision electronic air flow and air pressure sensors ensure the accuracy of test data.
- Built-in imported maintenance-free vacuum pump system for better airflow stability.
- Professional sample fixture for safer operation.
- Pneumatic clamping of the sample saves time and labor, and the clamping force is consistent.
- 7" color industrial touch screen & desktop operating system are for simple and convenient operations.
- The system has built-in calendar, multi-language switching & multi-level authority management, etc.
- Needle micro printer is connectable for the output of test results, and the results can be stored for a long time (optional).
- Standard RS232 interface facilitates the connection between the system and computer and data transmission (optional)
Test Principle
Method A:the air flow is stabilized vertically through the sample at a constant flow. Then, the pressure difference formed on both sides of the sample is measured under this condition, and air flow resistance and other parameters are calculated.
Method B:through adjustment, a constant pressure difference is formed on both sides of the sample, the air flow passing vertically through the given area of the sample in a certain time is measured, and the air permeability and other parameters are calculated.
Standard
ISO 9237, ISO 4638, ISO 5636, GB/T 10655, GB/T 5453, GB/T 4689.22, GB/T 13764, ASTM D737, TAPPI T460, JIS P8117
ApplicationsNote 1
| Basic Applications |
|---|
It is suitable for testing the air permeability and air resistance of automotive interior materials, such as polyurethane, PVC, leather, textiles, non-woven and so on. |
It is applicable to the air permeability test of high polymer porous elastic materials, such as sponge, etc. |
It is applicable to the permeability test of textile materials, such as cloth, non-woven fabric, etc. |
It is suitable for air permeability test of leather materials. |
| Extended Applications |
It is applicable to the air permeability test of paper materials, such as tissue and toilet paper, etc. |
It is applicable to the test of ventilation resistance and pressure difference of various masks. |
Technical Specifications
Table 1: Test Parameters Note2
| Parameters/Model | TQD-G1A | |
|---|---|---|
| Differential Pressure Test Range | Pa | 0～1000 |
| Differential Pressure Resolution | Pa | 0.1 |
| Differential Pressure Accuracy | Pa | 0.25% |
| Flow Measurement Range | L/min | 0～30 |
| Flow Resolution | L/min | 0.1 |
| Flow Accuracy | L/min | 2% |
Table 2: Technical Specifications
| No. of Test Cell | 1 Cell |
|---|---|
| Specimen Size | 2” x 2” (5cm×5cm) |
| Specimen Thickness | ≤40 Mil (1mm) |
| Test Area | 20cm2(other sizes can be customized) |
| Gas Specification | Clean Compressed Air (the air source is provided by the user) |
| Air Source Pressure | 72.5 PSI / 500kPa |
| Interface Size | Φ8 mm Polyurethane Pipe |
| Instrument Dimension | 12” H x 18” W x 20” D (30cm× 46cm× 52cm) |
| Power Supply | 120VAC±10% 60Hz / 220VAC±10% 50Hz (one from the two) |
| Net Weight | 55Lbs (25kg) |
Table 3: Product Configuration
| Standard Configuration | Mainframe, one set of fixtures and Φ8mm polyurethane pipe |
|---|---|
| Optional Parts | Computer software, air compressor |
| Notes | The compressed air inlet of this tester isΦ8mm polyurethane pipe (pressure≥79.7 PSI / 550 kPa, outlet flow > 120L/min); Air source is to be provided by the user. |
Note 1: the reference standards, test applications and product features mentioned are subject to the parameters in the "Technical Parameters".
Note 2: the parameters in the table are measured by professional operators in Labthink laboratory according to the requirements and conditions of relevant laboratory environmental standards.