Sulphur.

Sl. No. Characteristics Unit Requirement
Minimum Maximum
1 Sulphur, Purity % by mass 99.96
2 Humidity % by mass 0.02
3 Organic bituminous
compounds,
% by mass 0.12
4 Ash, % by mass, Max % by mass 0.02
5 Acids (as H2SO4) % by mass 0.003
6 Selenium Free
7 Tellurium Free
8 Arsenic Free