ASTM F1927 standard coulomb detection oxygen transfer rate test method and instrument

ASTM F1927 Standard Test Method for Determination of Oxygen Gas Transmission Rate, Permeability and Permeance at Controlled Relative Humidity Through Barrier Materials Using a Coulometric Detector This test method covers procedures
for determining oxygen transfer rates by thin films, flakes, laminates, coextrusions or plastic-coated paper or fabrics at steady-state, given temperature and relative humidity %RH levels.

This test method extends the common practice
of dealing with zero humidity or at best assuming humidity.

Humidity plays an important role
in the oxygen transfer rate (O).

Test principle: the pre-treated specimen is clamped between the test chambers, oxygen or air flows on one side of the film, high-purity nitrogen flows on the other side of the film, oxygen molecules diffuse through the film into the other side of the high-purity nitrogen, carried by the flowing nitrogen to the sensor, through the analysis of the oxygen concentration measured by the sensor, calculate the oxygen transmittance and other results
.

Oxygen transmittance test system applicable to ASTM F1927 test standard Introduction: C203H oxygen transmittance test system is based on Coulomb oxygen analysis sensor and isobaric test principle, with reference to ASTM D3985 and other standards designed and manufactured, for high and medium gas barrier materials to provide high precision and high efficiency oxygen transmittance testing
.

Suitable for food, medicine, medical equipment, daily chemical, photovoltaic, electronic and other fields of thin films, sheets and related materials oxygen transmission performance test
.

The equipment complies with the standards: ASTM D3985, ASTM F1307, ASTM F1927 (optional), GB/T 19789, GB/T 31354, DIN 53380-3, JIS K7126-2-B, YBB 00082003-2015 Test Applications: Thin Film - Various Plastic Films, Paper-Plastic Composite Films, Co-Extrusion Films, Aluminum Plated Films, Aluminum Foil Composite Films, Oxygen transmittance test
of membrane-like materials such as glass fiber aluminum foil composite film.

Sheet - oxygen transmittance test
of PP sheet, PVC sheet, PVDC sheet, metal foil, rubber sheet, silicon wafer and other sheet materials.