Gas Barrier Property Test System for Packaging Materials

For most packaging materials, they should have good barrier property to protect the content from oxygen in the air or preven the inner gases transmitting through the packaging. To determine the product shelf life or to improve the packaging materials, the first thing you need to do is to know what's current property of your packaging materials, that is to say, you need to know what about the gas barrier property of your current packaging materials. 

Labthink develops and manufactures professional gas barrier property test systems. Conforming to different international standards, labthink has gas permeability testers based on equal pressure method and differential pressure method. Also according to clients different requirement on test efficiency requirements, Labthink Gas barrier property test systems are designed with 1, 3, or 6 testing cells in one instrument, which can test multiple samples in one operations. G2/132 Gas Permeability Tester is one of gas barrier property tester that is based on differential pressure method and has three testing cells with independent testing results. 

Principle 

The pre-conditioned specimen is mounted in the gas diffusion cell as to form a sealed barrier between two chambers. The lower-pressure 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 and a constant pressure difference is generated between the two chambers. The gas permeates through the specimen from higher pressure side into the lower side. The gas permeability and other barrier properties of the specimen can be obtained by monitoring the pressure changes in the lower chamber.

This Gas Permeability Tester is equipped with three diffusion cells, which could generate test results of three equivalent specimens at one operation, and conforms to ISO 2556, ISO 15105-1, GB/T 1038-2000, ASTM D1434

Technical specifications 

Specifications	Film Test
Test Range	0.01~150,000 cm3/m2·24h·0.1MPa
Temperature Range	15°C~55°C (room temperature 23°C)
Temperature Accuracy	±0.1°C (standard)
Humidity Range	0%RH, 2%~98.5%RH, 100%RH (humidity generator is not in our supply scope)
Humidity Accuracy	±1%RH
Vacuum Accuracy	0.1Pa
Vacuum Degree of Test Chamber	<20Pa
Number of Specimens	3
Specimen Size	Φ97 mm
Test Area	115.44 cm2
Test Gas	O2, N2 and CO2 (not in supply scope)
Test Pressure	-0.1MPa~+0.1MPa

Heat Seal Tester: Determine Seal Temperature, Seal Pressure and Dwell time of Plastic Films

There are three elements in heat sealing of plastic films -- temperature, pressure and dwell time. Usually, we need to find a proper seal temperature, pressure and dwell time for our pakcaing materials before we apply it in production line. Labthink HST-H3 Heat Seal Tester is a laboratory heat sealer to determine the seal temperature, pressure and dwell time to meet a specific seal strength and product efficiency requirements. So this instrument is always used with a seal strength tester. 

This heat seal tester adopts digital P.I.D temperature control technology which ensures the preset temperature to be reached rapidly without any fluctuation. and it is controlled by micro-computer with LCD, PVC operation panel and menu interface for convenient operations. 

The instrument adopts the specially designed heat sealing jaws, which completely conform to multiple national and international standards.

For safety operations, this seal tester is equipped with pedal switch, as well as as well as anti-scald design

Technical Specifications 

Specifications	HST-H3
Sealing Temperature	Room temperature ~ 300°C
Accuracy	±0.2°C
Dwell Time	0.1~999.9 s
Sealing Pressure	0.05 MPa ~ 0.7MPa
Sealing Area	330mm x 10mm (customization available)
Heating Mode	Single heating surface or double heating surfaces
Gas Supply Pressure	0.5 MPa ~ 0.7MPa (not in supply scope)
Port Size	Ф6mm PU Tubing
Instrument Size	536 mm (L) x 335 mm (W) x 413 mm (H)
Power	AC 220V 50Hz
Net Weight	43 Kg