Rob R. wrote:
coal berner wrote:the real test for Anthracite is a ASTM D3176-89(2002) A basic test would be ASTM D3172-07a like they do for Bit coal
What is the difference between the two tests?
There are two tests commonly done for testing coal. D3172 - 07a Standard Practice for Proximate Analysis
of Coal and D3176 - 09 Standard Practice for Ultimate Analysis
The objective of coal proximate analysis is to determine the amount of fixed carbon (FC),volatile matters (VM), moisture, and ash within the coal sample.
The objective of coal ultimate analysis is to determine the constituents of coal, i.e. its basic chemical elements. The ultimate analysis determines the amount of carbon (C), hydrogen (H), oxygen (O), sulfur (S), and other elements within the coal sample.
More details are here:http://www.scribd.com/doc/45720245/Unde ... l-Analysis
Caution there is at least one error, the author names the proximate analysis ultimate analysis.