Wvtr Test

Wvtr Test. The testfilm is placed between the two chambers and the water vapor that escapes through the film into the Nitrogen chamber is carried to the infrared sensor which then measures the amount of moisture and calculates the WVTR.

Brief IntroductionAdvanced TechnologyAdvanced ConfigurationTest PrincipleStandardsConfigurationWVTRW3 Water Vapor Transmission Rate Tester is based on the cup method professional high Efficiency and intelligent WVTR Test System and is professionally applicable to the water vapor transmission rate test of plastic films composite films sheets and other materials used in medical and construction industry By testing the water vapor transmission rate the technical in.

Water Vapor Transmission Rate Poly Print

Standards and accreditation Oxygen permeability testing is made in accordance with ASTM D3985 ASTM F1927 and ASTM F1307 DIN 533803 or JIS K Water vapor permeability rates can be determined according to ASTM F1249 BS 7406 method A ISO 9932 or TAPPI T557 Other standards for WVTR based on.

Water Vapor Permeability Analyzer,WVTR Analyzer,Water

Another standard for the WVTR test is ASTM F1249 The working principle can be shown in the figure above (refer to the link for more details) The major difference between F1249 and E96 is the detection of water In F1249 water molecules are detected by a IR optical method while gravimetric in E 96 Therefore the major advantages for F 1249 is.

ASTM F1249 vs. ASTM E96: WVTR Test Methods Comparison

Moisture vapor transmission rate (MVTR) also water vapor transmission rate (WVTR) is a measure of the passage of water vapor through a substanceIt is a measure of the permeability for vapor barriers There are many industries where moisture control is critical Moisture sensitive foods and pharmaceuticals are put in packaging with controlled MVTR to achieve the required.