xmlns:atom="http://www.w3.org/2005/Atom"
6. The content declared in accordance with paragraph 1(d) shall be indicated both in words and by the appropriate chemical symbol as follows:—
(a)Nitrogen (N);
(b)Phosphorus pentoxide (P2O5);
(c)Potassium oxide (K2O);
(d)Magnesium oxide (MgO);
(e)Chlorine (Cl).