(a) Gar 5000-4800, Total Sulphur: Max 1, Ash: Max 12.
(b) Gar 5500-5000, Total Sulphur: Max 1, Ash: Max 12.
(c) Gar 5800-5500, Total Sulphur: Max 1, Ash: 12- Max 18.
(d) Gar 6000-5800, Total Sulphur: Max 1, Ash: 12- Max 18.
(e) Gar 6500-7000, Total Sulphur: Max 1, Ash: 12- Max 18.
(f) Semi-Anthracite -Total Sulphur: Max 1, As: 12- Max 18, Fixed carbon 75%.
(g) Anthracite - Total Sulphur: Max 1, Ash: 12-20, Fixed carbon 80%>.
