Fuel testing services

With this analysis, the volatile organic compounds (VOCs) present in a biogas sample can be quantified. Typically, the boiling range of the detected VOCs is 60-280 °C, but lighter hydrocarbons are also quantified and identified. The analysis employs a GC-MS method (typically TD-GC-MS) and utilizes external standard materials and mass-spectrum libraries to identify and quantify the compounds. The analysis results will be reported in the V-% unit. Price includes the quantification (in toluene equivalents) and identification of the 30 major peaks from the chromatogram (substances up to 280 °C boiling point). Samples must be delivered in gas sampling bags (2 liters in volume), and the safety data sheet (SDS) must be provided with the samples.

Compositional analysis of gas samples in accordance with NF X 20-303, DIN 51872-4, or in-house µGC/µTCD methods. The most suitable method is selected based on the analyzed gas and target analyte(s). Any 1-8 analytes from the table below can be selected. The price will be determined based on the number of substances analyzed. Compound Formula LOQ (ppm-vol.) acetylene C2​H2 10 argon Ar 10 nitrogen N2 10 butane C4​H10 10 carbon dioxide CO2 10 sulfur dioxide SO2 20 water vapor H2​O 10 ethane C2​H6 10 ethylene C2​H4 10 helium He 10 hydrogen H2 5 hydrogen sulfide H2​S 10 isobutane C4​H10​ 10 isopentane C5​H12​ 10 methane CH4​ 10 carbon monoxide CO 10 oxygen O2​ 10 pentane C5​H12​ 10 propane C3​H8​ 10 nitrous oxide N2​O 10 Gas samples must be collected in 2L multifoil bags, and the safety data sheet (SDS) must be provided with the shipment. Quick delivery to Measurlabs after sampling is recommended, as some analytes may escape the sampling vessel over time. This is particularly relevant for H2, CO, CO2, and O2. When requesting a quote, please describe the sample matrix and list the target analytes.

Quantification of volatile siloxanes and trimethylsilanol in biogas, biomethane, and natural gas using an in-house GC-MS method. Siloxanes form abrasive silica deposits during combustion, which makes the measurement relevant for equipment protection and gas quality verification against biomethane specifications such as EN 16723-1 and EN 16723-2. The following compounds are quantified, with typical LOQs: Hexamethylcyclotrisiloxane (D3): 0.10 mg/Nm³, Octamethylcyclotetrasiloxane (D4): 0.20 mg/Nm³, Decamethylcyclopentasiloxane (D5): 0.15 mg/Nm³, Hexamethyldisiloxane (L2): 0.10 mg/Nm³, Octamethyltrisiloxane (L3): 0.10 mg/Nm³, Decamethyltetrasiloxane (L4): 0.10 mg/Nm³, Dodecamethylpentasiloxane (L5): 0.5 mg/Nm³, Trimethylsilanol (SiOH): 0.10 mg/Nm³. Results for each compound are reported in mg/Nm³. The displayed price applies to small sample sets; larger batches and recurring orders are eligible for volume discounts.