Máy đo thẩm thấu hoi nước bao bì gói Oakland WVTR-303 Water Vapor Permeation Tester
The WVTR Series Water Vapor Permeation Testers are designed to meet or exceed ASTM D 1653 Specifications as well as international standards.  Includes bi-directional PC programming, precision DC servo-drive motor/encoder, digital LED display and touch panel keyboard, cleaning and operating tools, and built-in communication ports:
 
Method of Operation:     Weight Reduction Method
Number of Chambers:    3
Test Range:                    0.001 - 10000 g/(m2 x 24 h)
Temperature Range:       15 - 45 C
Test Area:                      50.24 cm2