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C390H Water Vapor Transmission Rate Test System, is designed and manufactured based on infrared sensor method and conforms to the requirements of ISO 15106-2 and ASTM F1249. This instrument can be used to measure the water vapor transmission rate of barrier materials with high, and medium moisture barrier properties with a wide testing range and high testing efficiency. The instrument is featured with patented design of integrated block consisting of 3 test cells. Equipped with high precision sensors and professional computer-controlled system, the instrument can regulate and control the temperature, humidity and flow rate precisely, which guarantee the testing sensitivity and repeatability of test results. C390H is applicable to determination of water vapor permeability of plastic films, sheeting, paper, packages and other relative packaging materials in food, pharmaceutical, medical apparatus, consumer goods, photovoltaic and electronic industries, etc.

New type infrared sensor for water vapor analysis with higher sensitivity.
Patented integrated test block with advanced hydrodynamic and thermodynamic design
Temperature and humidity are accurately and automatically controlled throughout the test, eliminating the need for operator intervention or separate data-logging devices.
Temperature and humidity sensor for independent monitoring of test cells.
ISO 15106-2, ASTM F1249, GB/T 26253, JIS K7129, YBB 00092003-2015
Films, Sheeting
Paper and Paper Board
Packages, Package Caps
LCD Monitor Films
Solar Back-Sheets
Plastic Packages for Drugs and Health Care Products
Plastic Pipes
Blister Packs
Aseptic Wound Protection Films and Medical Plasters
Battery Plastic Shells
Parameters | ||
Testing Efficiency | g/(m2·day) (Standard) | 0.005 ~ 40 |
g/(100in2·day) | 0.0003 ~ 2.6 | |
g/(pkg·day) (Package) | 0.000025 ~ 0.2 | |
Resolution | g/(m2·day) | 0.0001 |
Repeatability | g/(m2·day) | 0.005 or 2% |
Test Temperature | °C | 10 ~ 55 ±0.2 |
Test Humidity | RH | 5% ~ 90% ±1%, 100% |
Package Test (3L Max.) | Optional | |
DataShieldTM | Optional | |
Computer System required by GMP | Optional | |
CFR21 Part11 | Optional |
Specifications | |
Test Chamber | 3 test chambers |
Specimen Size | 108mm x 108mm |
Specimen Thickness | ≤3mm |
Standard Test Area | 50cm2 |
Carrier Gas | 99.999% High-purity Nitrogen (outside of supply scope) |
Carrier Gas Pressure | ≥0.28MPa/40.6psi |
Port Size | 1/8 inch metal tubing |


Note: this is just a sample packaging. We Labthink cares all instruments that we are sending to customers.
Lifelong free of charge! unpacking, Installation, debugging, training, maintainance, etc
Include installation, debugging, operation and application training, calibration, repairing
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Located in Medford, MA; has 30+ employees, including sales team, after-service team and shown room.
360 m2 test area, 120 testing instruments, 20+ experienced lab technicians. Provide test data as well as soluction services
Each Lathink instrument are carefully checked and debugged by the engineers.


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