Gas permeability tester - pressure difference method

BSG-11-A

Function

Gas permeability performance test.

Suitable for testing the permeability of O2, CO2, N2 and other non-toxic gases in plastic films, composite films, high barrier materials, sheets, metal foils, rubber and other materials.

Working principle

Differential pressure method.

Place the pre-set sample between the high-pressure chamber and the low-pressure chamber, seal it tightly, and then evacuate both chambers simultaneously; After vacuuming for a certain period of time and the vacuum degree drops to the required value, close the low-pressure chamber, fill the high-pressure chamber with test gas, and adjust the pressure of the high-pressure chamber to maintain a constant pressure difference on both sides of the sample; Gas permeates from the high-pressure side to the low-pressure side of the sample under the action of pressure difference; Accurately measure the pressure changes in the low-pressure chamber and calculate the gas permeability parameters of the sample.

Compliant with standards:

YBB 00082003、GB/T 1038、ASTM D1434、ISO 2556、ISO 15105-1、JIS K7126-A。

FEATURES

• Imported high-precision vacuum sensors and pressure sensors with high testing accuracy;
• Semiconductor cold and hot bidirectional temperature control, parallel connection, high reliability;
• Precision valve pipeline components, thoroughly sealed, achieve high-speed vacuum, thoroughly desorb, and reduce testing errors;
• Sample anti leakage design to reduce sample installation leakage;
• Precise pressure control, maintaining a wide range of pressure differences between high and low pressure chambers;
• The patented baseline technology removes system background leaks and reduces testing errors;
• Intelligent automatic: power on self-test to avoid continuing testing under fault conditions; One click start, fully automated testing execution.
• Data recording: graphical, full process, all element recording, no loss of power-off data.
• Data Security: The optional "GMP Computerized System" software module has functions such as user management, permission management, and data audit tracking.
• Working environment: Indoor. No need for constant temperature and humidity environment (reducing usage costs), test data is not affected by environmental temperature and humidity.

TECHNICAL INDEX

Standard configuration

Test host, vacuum pump, testing software, sampler, DELL computer (BSG-11 model not available), vacuum bellows, gas cylinder pressure reducing valve and fittings, sealing grease.

Select accessoriesContainer testing fixture, humidity control unit.

Self provided partsTesting gases and cylinders, testing computer (BSG-11 type).