C301B Water Vapor Transmission Rate Test System is designed and manufactured based on infrared sensor method and conforms to the requirements of ASTM F1249 and ISO 15106-2. 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. C301B 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.
The pre-conditioned specimen is clamped in the test cell, nitrogen with stable relative humidity flows on one side of the specimen while a stream of dry nitrogen flows on the other side. Due to the humidity difference, water vapor permeates through the specimen from the high humidity side into the low humidity side, and is carried to the infrared sensor by the dry nitrogen flow. By analyzing the electrical signals generated by the water vapor, the sensor calculates the water vapor concentration and the water vapor transmission rate.
ASTM F1249、ISO 15106-2、GB/T 26253、JIS K7129、YBB00092003-2015
Water vapor transmission rate test of various plastic films, paper-plastic composite films, coextruded films, aluminized films, aluminum foils, aluminum foil composite films, glass fiber aluminum foil composite films and many others
Water vapor transmission rate test of PP, PVC and PVDC sheets, metal foils, rubber pads, silicon wafers and other sheet materials
Table 1: Test Parameters Note2
|Testrange||g/(m2·day) (Standard area 50cm2)||0.1～40|
|Test humidity note3||%RH||4%RH～100%RH±2%（Saturated salt solution）|
|Temperature fluctuation||GMP Computer System requirement||Optional|
Table 2: Technical Specifications
|Test Cell||1 Cell|
|Specimen Size||3.8” x 3.8”（9.7cm×9.7cm）|
|Specimen Thickness||≤120 Mil（3mm）|
|Standard test area||50cm2|
|Test Gas||99.999% High purity nitrogen（Outside of supply scope）|
|Gas Pressure||7.2 PSI / 50 kPa|
|Port Size||1/8” Metal tube|
|Instrument Dimension||12.9” H x 16.9” W x 15.7” D (33cm× 43cm× 40cm)|
|Power Supply||120VAC±10% 60Hz / 220VAC±10% 50Hz（one of two）|
Table 3: Product Configuration
|Standard Configuration||Instrument mainframe, TC03 temperature control device, porous ceramic plate ,sampler, vacuum grease|
|Optional Parts||Professional software, GMP Computer System requirement, Micro-printer|
Note 1: The described product functions are subject to the specification in "Technical Parameters".
Note 2: The parameters in the table are measured in Labthink laboratory by professional operators according to the requirements and conditions stapulated in laboratory environmental standards.
Note 3: Different humidity can be achieved by immersing porous ceramic plate is in different saturated salt solutions, see ASTM E 104.