Question

As defined by ASTM, the thickness of a plastic film (after single extrusion) should be not more than ________

(a) 0.25mm

(b) 0.50mm

(c) 0.01cm

(d) 1mm

This question was addressed to me in an online quiz.

I need to ask this question from Extrusion and Calendering in Thermoplastics in portion Thermoplastic Polymers Properties & Processing of Food Packaging Technology

Answer 1

Correct option is (a) 0.25mm

Easy explanation: As defined by ASTM, the thickness of a plastic film (after single extrusion) should be not more than 0.25mm. ASTM, American Society for testing materials is an international standards organisation which functions to set standards for miscellaneous materials.