No.572 Water Vapor Permeability Measurement Device (Differential Pressure Method)
It is a device for measuring the water vapor permeability and water vapor transmission rate (water vapor barrier properties) of materials such as plastic films using the differential pressure method.
● Measures the water vapor permeability and water vapor transmission coefficient of plastic films and other materials. ● The measurement section accommodates two sizes of test specimens (measurement section diameters ∅30mm and ∅70mm). ● Modular design of the measurement section allows for additional expansions. ● Utilizes a high-precision vacuum pressure gauge with a reading accuracy of 0.25%. ● Email functionality enables receipt of messages in case of errors or at the end of tests.
basic information
■Number of test specimens: 1 or 3 ■Measurement range: 20–85℃, 80–90%RH (depending on combination) ■Temperature control method: Water circulation (using a constant temperature circulation bath) ■Test specimen dimensions: ・50×50mm (measurement area diameter Ø30mm, transmission area 707mm²) ・90×90mm (measurement area diameter Ø70mm, transmission area 3848mm²) *Select transmission area based on water vapor permeability ■Water vapor permeability measurement range: ・Type A: 0.001–1.000 [g/(m²・24h)] ・Type B: 0.01–100.00 [g/(m²・24h)] *Vacuum pressure gauge accuracy 0.25% of reading ■Supply gas: 0.5MPa ■Medium for water vapor: Water (Type A1 or higher as specified in JIS K 0557) ■Measurement items: Water vapor permeability ([g/(m²・24h)]) Water vapor permeability coefficient [g・mm/(m²・24h)] ■Data processing device: PC, dedicated software (standard included) ■Reference standards: JIS K 7129-5, ISO 15106-5 For other specifications, please refer to the catalog.
Price range
Delivery Time
Model number/Brand name
Catalog No. 572
Applications/Examples of results
Measurement of water vapor permeability and water vapor transmission rate (water vapor barrier properties) of plastic films and the like.
