Exploring Materials Permeability Test Methods and Instrumentation

Product Description

Product FeaturesNote1

Accurate Data

• Brand new dome design test chamber and 360 air circulation constant temperature technology ensures better temperature stability.
• Imported high-precision vacuum sensor can accurately test ultra-high barrier materials with 0.010.09cm3/ m324h0.1MPa test range.
• Imported pneumatic control system has a low failure rate and an ultra-long service life, ensuring good overall system air tightness and high test accuracy.
• Imported vacuum pump can reach 0.2Pa extreme pressure with increased vacuum rate.
• The vacuum pump is controlled automatically by the system without manual opening and closing, increases efficiency and saves labor.
• Labthinks unique high-precision automatic pressure compensation technology in the test process realizes a constant pressure difference in the high-pressure chamber, and the pressure fluctuation is less than 0.2 kPa.
• The pressure in high-pressure chamber can be set within the range of 10kPa210kPa, the pressure can be maintained accurately and stably by the system.

High Efficiency

• Six independent test cells with standard area, three times the number of test cells in traditional oxygen permeability testing instruments.
• Six specimens can be tested simultaneously under the same testing condition, delivering independent test result.
• Medium and low barrier materials, test time <4 hours (including vacuumize time).
• High barrier materials, test time <4 hours (including vacuumize time).
• Automatic specimen clamping saves time and effort. The clamping force is consistent, resulting in better air tightness.

Intelligent control

• 12 touch-screen tablet powered by WindowsTM 10 operating system makes the operation simpler and more convenient.
• Automatic test mode requires only inputting temperature and humidity, one click start, the test is fully automated.
• Intelligent test chamber hood automatically opens and closes with sound and light alert

Safe and reliable

• System security -- Built-in Labthinks unique high-end industrial computer prevents system failures caused by computer viruses, ensures operational reliability and data storage security.
• Operation safety-- Equipped with intelligent optics sensors which give sound and light alert to ensure safe operation.
• Performance reliabilitythe instrument adopts components of global renowned brands, to ensure stable and reliable performance.

Space saving

• The width of the instrument is only 1/3 of the traditional six-cell instrument, saving space for a laboratory.

Powerful functions

• Professional test mode provides flexible and diverse control options to meet various needs of scientific research.
• The system provides gas transmission rate curve, gas transmission coefficient curve, and temperature curve.
• Ultra-wide test temperature range to enable the barrier tests under various extreme temperature (Optional).
• Ultra-wide test range to meet the barrier test of various materials (customize).
• Tests of hazardous gases such as H2CH4 are applicable (Customize).

Test Principle

The pre-conditioned specimen is mounted in the test cell as to form a sealed barrier between two chambers. The lower-pressure chamber (lower chamber) is firstly evacuated, followed by the evacuation of the entire cell. A flow of gas is thereafter introduced into the evacuated higher-pressure chamber (upper chamber) and a constant pressure (adjustable) difference is generated between the two chambers. The gas permeates through the specimen from higher pressure side into the lower pressure side. The gas permeability and other barrier properties of the specimen can be obtained by analyzing the pressure changes in the lower chamber.

Standard

ISO 15105-1ISO 2556GB/T 1038-2000ASTM D1434JIS K7126-1YBB 00082003

Applications

Applications
Films Gas transmission rate test of various plastic films, paper-plastic composite films, coextruded films, aluminized films, aluminum foils, aluminum foil composite films, glass fiber aluminum foil composite films and many others
Sheets Gas transmission rate test of PP, PVC and PVDC sheets, metal foils, rubber pads, silicon wafers and other sheet materials

Technical Specifications

Table 1: Test Parameters Note2

Parameters/Model		C106H
Test range	cm3/m224h0.1MPa	0.0150,000
Resolution	cm3/m224h0.1MPa	0.001
Test temperature		1550560Optional
Temperature resolution		0.01
Temperature fluctuation		0.15
Test humidity	%RHWithin standard test temperature range	0%5902%Customize
Vacuum Resolution	Pa	0.01
Vacuum Accuracy	Pa	0.2%1%-100% of Full Scale
Vacuum Degree of Test Chamber	Pa	10
Additional Functions	DataShieldTM note3	Optional
	GMP Computer System requirement	Optional
	CFR21Part11	Optional

Table 2: Technical Specifications

Test Cell	6 Cells
Specimen Size	4.6 x 4.611.7cm11.7cm
Specimen Thickness	120 Mil3mm
Standard test area	38.48cm2
Test Gas	O2N2CO2 etc.Outside of supply scope
Test Pressure	10 kPa210 kPaCan be set between
Pressure Fluctuation	0.2 kPa
Gas Pressure	79.7 PSI / 550 kPa
Port Size	6 mm PU tubing
Instrument Dimension	23.6 H x 19.2 W x 25.9 D (60cm 49cm 66cm)
Power Supply	120VAC10% 60Hz/220VAC10% 50Hzone of two
Net Weight	220Lbs100kg

Table 3: Product Configuration

Standard Configuration	Instrument mainframe, tablet, vacuum pump (UK), sampler, vacuum grease, 6 mm PU tubing
Optional Parts	Air compressor, CFR21Part11, GMP Computer System requirement, DataShieldTM note3
Note	The gas compressor port of the instrument is 6 mm PU tubingpressure79.7 PSI/ 550kPa, customers need to prepare gas supply.

Note 1: The described product functions are subject to the specification in "Technical Parameters" "Table 1: Test Parameters".
Note 2: The parameters in the table are measured in Labthink laboratory by professional operators according to the requirements and conditions stapulated in laboratory environmental standards.
Note 3: DataShieldTM provides safe and reliable data application support. Multiple Labthink instruments can share one single DataShieldTM system which can be configured as required.

Advanced Gas Transmission Testing Principle

This equipment employs the Gas Transmission Method to accurately evaluate the permeability of materials such as films, membranes, textiles, and construction components. The method ensures reliable results, complying with ISO and ASTM standards for quality assurance. Its microcomputer and manual control modes provide flexibility and precision during testing.


Flexible Test Parameters and Automation

Featuring adjustable temperature (1050C), humidity (3090% RH), test speed (0.01500 mm/min), and customizable measuring ranges, the machine adapts to distinct material requirements. Automatic or manual calibration, data logging, and built-in sample preparation tools streamline laboratory workflows, making it highly efficient for consistent material testing.


User-Friendly and Reliable Performance

The machine is engineered for quiet indoor operation with noise levels below 60 dB, and can store up to 10,000 test results. Its alarm system (acoustic and visual) enhances user safety, while an LCD digital display, quick response time (<3 s), and robust leak-proof chamber ensure dependable results. It operates on standard AC220V/50Hz power.