Subheading Notes

1. In this chapter, the following expressions have the meanings hereby assigned to them:

(a) Zinc, not alloyed:

Metal containing by weight at least 97,5 % of zinc.

(b) Zinc alloys:

Metallic substances in which zinc predominates by weight over each of the other elements, provided that the total content by weight of such other elements exceeds 2,5 %.

(c) Zinc dust:

Dust obtained by condensation of zinc vapour, consisting of spherical particles which are finer than zinc powders. At least 80 % by weight of the particles pass through a sieve with 63 μm (microns) mesh. It must contain at least 85 % by weight of metallic zinc.