What we do need is a knowledge of coal's elemental analysis. In other words, we need to know only how much carbon, hydrogen, sulfur, oxygen and nitrogen there is in a given coal. A typical elemental analysis of a bituminous coal is as follows: 82% carbon, 5% hydrogen, 1% nitrogen, 3% sulfur, 9% oxygen.
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SwagelokÂ® Tube Fitterâs Toolbox. The Ultimate Set of Fabrication Tools. Finding the right tool for the job will not be an issue. when you have the Swagelok Tube Fitterâs Toolbox. on the jobsite. The toolbox contains a complete set of. Swagelok hand tools designed specifically for fabricat-. ing tubing systems. The set of tools are designed for. use with the three most common tube sizes - 1/4, 3/8.