Evaluating water vapour permeability of moisture-proof packaging, leather, and coatings | WATER VAPOUR PERMEABILITY CUP / No.318

Overview of WATER VAPOUR PERMEABILITY CUP

This tester is used to evaluate the permeability of plastic film and moisture-proof packaging material for processed paper and coating according to the cup method.
The permeability obtained by this method will be the mass of vapour that went through the unit area of membranal material during a specific amount of time and prescript temperature and humidity conditions.

Reference Standards

JIS (K5400), K6549, Z0208, TAPPI-T448, T464, ISO 2528

Specification

Specifications are subject to change without notice.
Specimen	φ70 mm
Vapour Transmission Area	28 cm2 (Inner Diameter of Cup φ60 mm)
Accessories	Cup, Ring, Glass dish: 10 pcs each Guide, Base, Weight, Cutter: 1 pc each
Test Methods	A Method: Temperature 25 ± 0.5 °C, Humidity 90 ± 2 % B Method: Temperature 40 ± 0.5 °C, Humidity 90 ± 2 %, Air Velocity 0.5 to 2.5 m/s
Dimensions/ Weight (Approx.)	W450 × D250 × H230 mm, 8 kg (Including Case)