Programmable calculator solutions for coal quality determinations. 19 pages. Digital PDF download. OF-83-10D
From the Abstract:
The program computes the weighted averages of user-selected coal quality characteristics. Up to 140 coal quality factors may be weighted for analysis. Useful in mine planning and blending of stockpile material.
Rushworth, Peter. “OF-83-10 Programmable Calculator Solutions for Coal Quality Determinations.” Coal Resources. Open File Report. Denver. CO: Colorado Geological Survey, Department of Natural Resources, 1983. https://doi.org/10.58783/cgs.of8310.wiex2431. CGS Publications. https://coloradogeologicalsurvey.org/publications/programmable-calculator-solutions-coal-quality-determinations/.