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The term WVTR related to packaging films stands for ________

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in Food Packaging Technology by (63.0k points)
The term WVTR related to packaging films stands for ________

(a) Water vapour transmission rate

(b) Water vapour transient rate

(c) Water vapour transfer rate

(d) Water to vapour total ratio

The question was asked during an internship interview.

My doubt is from Diffusivity and Permeability in Plastics in portion Thermoplastic Polymers Properties & Processing of Food Packaging Technology

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Best answer
The correct choice is (a) Water vapour transmission rate

The explanation is: The term WVTR related to packaging films stands for Water vapour transmission rate. It is the rate by which water vapour/moisture permeates through a plastic film. The plastic films having a greater water vapour transmission rate is a poor barrier against water vapour or moisture.

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