N500 L Gas Permeability Analyser
Product Introduction
This product is based on the test principle of the differential pressure method, and is designed and manufactured with reference to ASTM D1434, ISO 2556 and other standards. With high-precision pressure sensor and automatic differential pressure maintaining technology, this machine has high test accuracy. It is suitable for the gas permeability test of films, sheets, paper, packaging and related materials in food, medicine, medical equipment, daily chemicals, photovoltaic electronics and other industries. It can be used to test high, medium and low gas barrier materials with outstanding efficiency.
Test Principle
The N500L gas permeability tester adopts the principle of differential pressure method. Place the processed sample between the upper and lower chambers and use a vacuum pump to evacuate the entire gas circuit system. Add an atmospheric pressure experimental gas to the upper chamber to form a constant pressure difference between the upper and lower chambers. Due to the pressure difference, the gas permeates from the upper cavity to the lower cavity through the film, and the system can calculate the barrier performance such as the gas permeability of the sample through the pressure change of the lower cavity.
Standards
ASTM D1434, ISO 2556, ISO 15105-1, JIS K7126-1
Specifications
| Item | Technical Parameters |
|---|---|
| Test Range | 0.05~50000 cm³ / (m²·24 h·0.1 MPa) |
| Resolution | 0.0001 cm³ / (m²·24 h·0.1 MPa) |
| Temperature Range | 15~60℃ |
| Temperature Control Accuracy | ±0.2℃ |
| Vacuum Degree | ＜20 Pa |
| Vacuum Resolution | 0.01 Pa |
| Test Pressure | 0.1 MPa |
| Test Gas | O2, CO2, N2, etc. |
| Through Area | 50.24 cm² |
| Sample Size | Φ110 mm |
| Sample Thickness | ≤2 mm |
| Number of Samples | 1 piece |
| Dimension | 440mm*680mm*380mm |
| Power | 450W |
| Power Supply | AC 220 V, 50 Hz |
Features
Patented core technology, efficient and accurate testing
1) The patented automatic differential pressure maintaining technology automatically maintains the pressure difference between the two sides of the sample (the differential pressure maintaining pressure can be adjusted arbitrarily), with a built-in high-precision pressure sensor with a resolution of 0.01 Pa, good stability and low failure rate.
2) Water-cooled temperature control technology, imported original temperature sensor, automatically adjust the test temperature, the temperature is accurate to 0.1 ℃.
3) The original imported vacuum pump, the ultimate pressure can reach 0.1 Pa, the vacuum pumping efficiency is high, and the noise is low.
Meet the test requirements of wide range and high applicability
1) The instrument is equipped with a single cavity, with a measurement accuracy of 0.001 cm³/(m²·24 h·0.1 MPa).
2) The measurement range is 0.02~50000 cm³/(m²·24 h·0.1 MPa), and the measurement range is wide, which can meet the testing requirements of high, medium and low barrier materials.
3) With the addition of matching accessories, it can measure the gas permeation of bottles, bags, bowls and other packaging. At the same time, it supports the permeability test of different gases such as oxygen, carbon dioxide, nitrogen, and air.
Excellent appearance, convenient control, real-time visualisation of curves
The products are artistically designed from the perspective of ergonomics and technical aesthetics. Fully automatic operation with one-key test, automatic judgment and automatic shutdown. Real-time display of five sets of curves of transmittance-time, temperature-time, upper chamber pressure-time, lower chamber pressure-time, differential pressure change-time, and the curve supports preview and hide function.
Application
| Product | Price |
|---|---|
| Films | Various plastic films (PP/PET /PE/PVC/BOPP/CPP, etc.), plastic composite films, paper-plastic composite films, metal composite films, co-extruded films, aluminised films, degradable packaging films (PLA/PBAT/PBS etc.) and other membranous materials. |
| Sheet | Solid medical hard sheet (PP/PVC/PTP, etc.), metal composite sheet, rubber sheet and other sheet materials. |
| Paper and cardboard | Coated paper, carbon paper, silicone paper, aluminised paper, paper-aluminium-plastic composite sheet and other paper, cardboard. |
| Medicinial patch, warmer patch | Medical plaster treatment patch, warm patch, dysmenorrhea patch, etc. |
| Hygiene | Sanitary napkins, pads and other hygiene products. |
| Package | Wine bottles, coke bottles, peanut oil drums, Tetra Pak packaging, vacuum packaging bags, three-piece cans, cosmetic packaging, toothpaste tubes, jelly cups, yoghurt cups, etc. Plastic, rubber, paper, paper-plastic composite, glass, metal bottles. Gas transmission rate test of bags, cans, boxes and drums. |
| Gases | Oxygen, carbon dioxide, nitrogen, air, helium, etc. |
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