GTI’s Analytical Chemistry Laboratory gives the energy industry a depth of customized support unavailable in typical commercial laboratories. It provides complete laboratory services for natural gas, biogenically derived gas, coal, liquid fuels, and other materials for the natural gas and power generation industries, as well as for numerous municipalities and utilities. Our capabilities incorporate modern instrumental techniques and traditional referee methods providing highly accurate determinations. Advanced analytical capabilities include gas chromatography coupled with atomic emission and mass spectral detectors. GTI also received accreditation for three new tests for liquid hydrocarbon analysis in 2014. These new test methods are: ASTM D664 (for acid number of petroleum products by potentiometric titration), ASTM D5291 (for instrumentation determination of carbon, hydrogen, and nitrogen in petroleum products and lubricants), and ASTM D5622 (for determination of total oxygen in gasoline and methanol fuels by reductive pyrolysis). This laboratory is accredited by A2LA in compliance with ISO/IEC 17025 on certificate 2139-04.