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Infrared Method Water Vapor Permeability Tester

Product Item : ZHIYI-809
Category： Paper, Packaging & Print
Product description：Infrared-Method-Water-Vapor-Permeability-Tester
INQUIRY

Test principle

W401L water vapor transmission rate tester adopts the principle of the infrared method. Fix the pre-treated sample in the middle of the test chamber, divide the test chamber into a high-humidity side and a low-humidity side, the humidified nitrogen flows on one side of the film, and the dry nitrogen (carrier gas) flows at a fixed flow rate on the other side, in the presence of a humidity gradient, water vapor will permeate from the high-humidity side to the low-humidity side, and the water vapor that passes through the sample is carried to the infrared sensor by the flowing dry nitrogen, and the water vapor transmission rate (and other parameters) of the sample is obtained by the electrical signal output by the sensor.

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Working principle diagram

Standard

ASTM F 1249, BS EN ISO 15106-2, JIS K7129, GB/T 26253, YBB 00092003

Specification

Item	Technical Parameters
Test range	0.01～200 g/(m²·24h)
Resolution	0.0001 g/(m²·24h)
Temperature control range	15～45℃
Temperature control accuracy	±0.2℃
Humidity control range	(5～90) %RH, 100%RH
Humidity control accuracy	±2%RH
Permeable area	50.24 cm²
Sample size	Φ100 mm
Sample thickness	≤3 mm
Sample quantity	1 piece
Carrier gas	99.999% Nitrogen (user-provided)
Carrier gas pressure	≥0.1 MPa
Carrier gas flow	5~100 mL/min
Dimension	380545315mm
Power	450 W
Power supply	AC 220 V, 50 Hz