Question

The oil film weights are generally in the range of_______

(a) 5–10 mg m^-2

(b) 1–5 mg m^-2

(c) 10–15 mg m^-2

(d) 1–5 mg m^-2

I had been asked this question in an online quiz.

Origin of the question is Manufacture of Tinplate in chapter Metal Packaging Materials of Food Packaging Technology

Answer 1

Correct choice is (a) 5–10 mg m^-2

The best I can explain: The oil film weights are generally in the range of 5–10 mg m^-2 to help preserve it from attack, and to assist the passage of sheets through container forming machines without damaging the soft tin layer.