Gas permeability tester differential pressure method ISO 15105-1 ISO 2556 ASTM D1434 JIS K7126-1

Polywood case

Standards

GB/T 1038-2000,ISO 15105-1,ISO 2556,ASTM D1434,JIS K7126-1,YBB00082003

This gas permeability tester is specialized to test the gas transmission rate (GTR), and permeability of plastic films, composite films, high barrier materials, sheets and metal foils, by using the pressure-differential method, the test temperature is adjustable.

Features

• The gas permeability and gas permeability coefficient of the sample can be measured simultaneously

• Fully independent testing of three test chambers

• Wide range and high-precision temperature and humidity control to meet the test under various test conditions

• Three test process judgment modes are provided, namely, proportion mode, fuzzy mode and time mode

• The test range can be expanded as required to meet the requirements of high transmittance test

• Support the test of toxic gas and flammable and explosive gas (to be customized)

Pneumatic clamping is adopted for sample, which is convenient and fast

• The system adopts electronic intelligent control, and the whole test process is completed automatically

• Provide standard membrane for rapid calibration to ensure the accuracy of test data

• The product complies with GMP multi-level authority

• Micro printer, note printing test statistical results at any time

• Special computer communication software, which can perform real-time display of test, data analysis and processing, and data storage

• Equipped with USB universal data interface for convenient data transfer

Test principle

The instrument adopts the principle of differential pressure method, and places the pre processed sample between the upper and lower test chambers for clamping. First, vacuum the low pressure chamber (lower chamber), and then vacuum the whole system; When the specified vacuum degree is reached, close the lower test chamber, fill the high-pressure chamber (upper chamber) with test gas of a certain pressure, and ensure that a constant differential pressure (adjustable) is formed on both sides of the sample; In this way, the gas will permeate from the high pressure side to the low pressure side under the effect of the differential pressure gradient. Through the monitoring of the internal pressure of the low pressure side, various barrier parameters of the tested sample can be obtained.

Test samples

Specifications

Configurations

Standard configuration: host, professional software, communication cable, special sampler, vacuum grease, fast quantitative filter paper, vacuum pump, temperature control device, micro printer

Options: sampling blade, vacuum pump oil, humidity generator

Remarks: The air supply inlet of this machine is Ф 6mm polyurethane pipe; Gas source and distilled water provided by users