Following ASTM D1945/1946 Methane (CH4), Carbon Dioxide (CO2), Oxygen (O2) and Nitrogen (N2) are reported in terms of their concentrations in the sample. The BTU calculation follows ASTM D3588. The relative density calculation is based on the major components.
Compound Speciation – Siloxanes
Total volatile organic silicon (Siloxane) speciation in gas. Analysis is completed by GC-AED including TMS, MOH, L2, D3, L3, D4, L4, D5, L5 and D6
Compound Speciation – Sulfur Components
Following ASTM D6968, Sulfur component speciation and total sulfur calculation by GC-AED.
VOCs Full Panel
Following US EPA TO14/15/17 GC-MS analysis with GC-FID or GC-AED quantification at 0.1 – 0.2 ppmv level. Target components include all TO-14, partial and common TO-15 and characteristic Biogas VOC component excluding most branched or cyclic hydrocarbon components.