Particle Size Analyzer (Mastersizer 3000) is laser diffraction technique used for measuring the size of solid powder & liquid emulsions. We use this technique to analyse the particle size of polymer in emulsion, raw material used in the formulation & in the film.
OTR (Oxygen Transmission Rate) is used to measure the barrier properties of the film against water & moisture
WVTR (Water Vapour Transmission Rate) is used to measure the barrier properties of the film against oxygen