16 CFR 300.20a: a Labeling of very fine wool.

A wool product stamped, tagged, labeled, or otherwise identified in the manner described below is mislabeled:

(a) “Super 80's” or “80's,” if the average diameter of wool fiber of such wool product does not average 19.75 microns or finer;

(b) “Super 90's” or “90's,” if the average diameter of wool fiber of such wool product does not average 19.25 microns or finer;

(c) “Super 100's” or “100's,” if the average diameter of wool fiber of such wool product does not average 18.75 microns or finer;

(d) “Super 110's” or “110's,” if the average diameter of wool fiber of such wool product does not average 18.25 microns or finer;

(e) “Super 120's” or “120's,” if the average diameter of wool fiber of such wool product does not average 17.75 microns or finer;

(f) “Super 130's” or “130's,” if the average diameter of wool fiber of such wool product does not average 17.25 microns or finer;

(g) “Super 140's” or “140's,” if the average diameter of wool fiber of such wool product does not average 16.75 microns or finer;

(h) “Super 150's” or “150's,” if the average diameter of wool fiber of such wool product does not average 16.25 microns or finer;

(i) “Super 160's” or “160's,” if the average diameter of wool fiber of such wool product does not average 15.75 microns or finer;

(j) “Super 170's” or “170's,” if the average diameter of wool fiber of such wool product does not average 15.25 microns or finer;

(k) “Super 180's” or “180's,” if the average diameter of wool fiber of such wool product does not average 14.75 microns or finer;

(l) “Super 190's” or “190's,” if the average diameter of wool fiber of such wool product does not average 14.25 microns or finer;

(m) “Super 200's” or “200's,” if the average diameter of wool fiber of such wool product does not average 13.75 microns or finer;

(n) “Super 210's” or “210's,” if the average diameter of wool fiber of such wool product does not average 13.25 microns or finer;

(o) “Super 220's” or “220's,” if the average diameter of wool fiber of such wool product does not average 12.75 microns or finer;

(p) “Super 230's” or “230's,” if the average diameter of wool fiber of such wool product does not average 12.25 microns or finer;

(q) “Super 240's” or “240's,” if the average diameter of wool fiber of such wool product does not average 11.75 microns or finer; and

(r) “Super 250's” or “250's,” if the average diameter of wool fiber of such wool product does not average 11.25 microns or finer.