Air Permeability Tester to test composite blanket specimens per ASTM D737

Product Description

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
Auto Interior Materials 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.
Polymer Porous Elastic Materials It is applicable to the air permeability test of high polymer porous elastic materials, such as sponge, etc.
Textile It is applicable to the permeability test of textile materials, such as cloth, non-woven fabric, etc.
Leatherwear It is suitable for air permeability test of leather materials.
Extended Applications
Paper It is applicable to the air permeability test of paper materials, such as tissue and toilet paper, etc.
Masks 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	01000
Differential Pressure Resolution	Pa	0.1
Differential Pressure Accuracy	Pa	0.25%
Flow Measurement Range	L/min	030
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 (5cm5cm)
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	8 mm Polyurethane Pipe
Instrument Dimension	12 H x 18 W x 20 D (30cm 46cm 52cm)
Power Supply	120VAC10% 60Hz / 220VAC10% 50Hz (one from the two)
Net Weight	55Lbs (25kg)

Table 3: Product Configuration

Standard Configuration	Mainframe, one set of fixtures and 8mm polyurethane pipe
Optional Parts	Computer software, air compressor
Notes	The compressed air inlet of this tester is8mm polyurethane pipe (pressure79.7 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.

Precise and Versatile Testing

Engineered for laboratory evaluation, this Air Permeability Tester offers highly accurate measurement (2% of reading) of air flow through composite blankets, textiles, and fabrics as per ASTM D737. Its high throughput and adjustable test settings enable rapid, repeatable testing for research, quality control, and development purposes.


User-Friendly Operation and Advanced Features

Featuring a digital LCD, adjustable test pressure, data storage, and automatic calculation capabilities, the tester streamlines the entire testing process. Its semi-automatic functionality, multi-language user interface, and included PC software for result analysis support easy integration into laboratory environments and workflows.


Reliable Performance and Comprehensive Protection

Built with durable stainless steel and anodized aluminum, this tester includes robust protections against over-current and leakage. Its quiet operation (<65 dB(A)), adjustable gas pressure, and wide operating range (1012000 mm/s) make it ideal for routine and advanced laboratory applications worldwide.