xmlns:atom="http://www.w3.org/2005/Atom" xmlns:atom="http://www.w3.org/2005/Atom"
20E+W+SSubject to paragraph 21 below, goods to which this Part of this Schedule applies—
(a)unless pre-packed, shall be sold by retail only by length, and
(b)shall be pre-packed only if the container is marked with an indication of quantity by length.