| '''6.8''' || Sulphur, % by mass (see 6.22 and 8.2) || Max. || 0.30 || 0.30 || 0.50 || ― || ― || ― || D1266, D1552, D2622, D4294, D5453<ref name="a">The referee method to be used in the event of a dispute.</ref>, or D7039 | | '''6.8''' || Sulphur, % by mass (see 6.22 and 8.2) || Max. || 0.30 || 0.30 || 0.50 || ― || ― || ― || D1266, D1552, D2622, D4294, D5453<ref name="a">The referee method to be used in the event of a dispute.</ref>, or D7039 |