What is Proximate Analysis?

Proximate analysis is a way to determine the distribution of products when the samples are heated under specified conditions.

From: Fuel Flexible Energy Generation, 2016

What is Ultimate Analysis?

Ultimate Analysis Tests. Ultimate analysis tests produce more comprehensive results than the proximate analyses. SGS uses the results from ultimate analysis tests to determine the elemental composition of the coal including moisture, ash, carbon, hydrogen, nitrogen, sulfur, and oxygen (by difference).