Recommended Practice for Measuring 60° Specular Gloss

This recommended practice outlines a method for measuring the specular gloss of transparent plastic bottle specimens using a 60° geometry. The purpose is to quantitatively evaluate the glossiness of the bottle surfaces. By following the specified measurement procedure, manufacturers and users of plastic bottles can assess and compare the visual appearance and surface finish of different bottle samples. The measurement of specular gloss helps ensure consistent quality and aesthetic appeal of transparent plastic bottles in various applications.

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