Water Vapor Permeability Tester QT-Q401-WVTR Overview
The AUTO QT-Q401-WVTR single-cell water vapor transmission rate tester, crafted to adhere to ASTM F1249 and international standards, operates on the infrared method testing principle. This WVTR Analyzer ensures a comprehensive and efficient water vapor transmission rate test for high, medium, and low barrier materials.
The advanced WVTR Water Vapor Permeability Tester is apt for assessing water vapor transmission performance in films, sheets, paper, packaging, and related materials across diverse sectors like food, medicine, medical equipment, daily chemistry, photovoltaic electronics, etc. It stands as an ideal configuration instrument for both offline and online testing of packaging material barrier properties in the production units of the packaging industry.
Test Principle
The AUTO QT-Q401-WVTR water vapor transmission rate tester, utilizing the infrared method principle, features a setup where a pre-treated sample is secured in the center of the test chamber. The chamber is divided into a high-humidity side and a low-humidity side. Humidified nitrogen flows on one side of the film, and dry nitrogen (carrier gas) flows on the other side at a fixed rate.
In the presence of a humidity gradient, water vapor permeates from the high-humidity side to the low-humidity side. The water vapor passing through the sample is conveyed to the infrared sensor by the flowing dry nitrogen.
The electrical signal output by the sensor provides the water vapor transmission rate (along with other parameters) of the sample. This device serves as an excellent Water Vapor Permeability Tester and WVTR Transmission Rate Analyzer.
Materials and Applications for Water Vapor Permeability Tester
| Material | Application |
|---|
| Film |  | Water vapor transmittance test of various plastic films (PP/PET/PE/PVC/BOPP/CPP, etc.), plastic composite films, paper-plastic composite films, metal composite films, coextruded films, aluminized films, degradable packaging films (PLA/PBAT/PBS, etc.), and other film-like materials. |
| Sheet |  | Water vapor transmittance test of solid pharmaceutical hard sheets (PP/PVC/PTP, etc.), metal composite sheets, rubber sheets, and other flakes. |
| Medicinal Stickers |  | Water vapor transmission performance test of medical plasters. |
| Paper, Cardboard, and Their Composites |  | Water vapor transmittance test of coated paper, silicone paper, cigarette bag aluminized paper, paper aluminum-plastic composite sheet, and other paper and cardboard. |
| Package |  | Customizable fixtures can be extended to packages such as pharmaceutical polyethylene bottles, sealed bags, pharmaceutical ointment tubes, infusion hoses, plastic trays, etc. |
