Paragraph 18
Island Lump and Island Nuts, manufactured by Unocal Refinery, California, the United States of America, which–
(a)
comprise petroleum coke;
(b)
were manufactured from the petroleum coke by a process involving heat treatment and steam injection;
(c)
are unmarked random shapes;
(d)
have an average weight of 80 grammes (per briquette of Island Lump) or 30 grammes (per briquette of Island Nuts); and
(e)
have a sulphur content not exceeding 2 per cent of the total weight.