Global Leaders in Gas Measurement


Inspection of Gas Quality Measurements
EffecTech provides Inspection and performance evaluations on Gas Quality Measurement Systems & process gas chromatographs in accordance with the international standards ISO 17020 & ISO 10723. Operators require this to demonstrate that their natural gas and LNG measurement systems are operating as expected and that optimal performance is being maintained reducing significant mis-measurements which may compound over time. Regular site Inspections and performance evaluations provide confidence in the metering system and objective evidence that the gas or LNG is being metered correctly. EffecTech is first in the world to have gained ISO 17025 accreditation for on-site calibration by performance evaluation. This enables EffecTech to provide clients with evidence of compliance with even the strictest fiscal metering requirements.

Calibration Gases
Gas analysis is a comparative method and as a consequence the calibration gas is the principal driver for the accuracy of the analysed gas composition, and that of any physical property calculated from it.

EffecTech’s accredited ISO 17025 calibration gases are used as the sole source of traceability for the main transportation networks in the UK, Ireland, France, Greece and Turkey. The monopoly gas transporters in all these countries rely on EffecTech exclusively for their traceability for fiscal metering of calorific value for billing their domestic customers.EffecTech also supplies calibration gases for emission monitoring, biogas, refinery gas, blast furnace, trace sulphur and LNG applications. All calibration gases can be supplied by EffecTech as ISO 17025 accredited Primary Reference Gas Mixtures (PRGM), Secondary Reference Gas Mixtures (SRGM) or through a third party supplier as a CGM.


  • Express delivery for hydrocarbon mixtures is 1 week to UK or ex works worldwide.
  • Standard delivery for hydrocarbon mixtures is 2-3 weeks to UK or ex works worldwide and 4-5 weeks for trace sulphur mixtures.

Global Gas and LNG Proficiency Testing Scheme
Proficiency Testing Schemes provides laboratories with an objective means of assessing and demonstrating the reliability of the analytical data they are producing. In this PT scheme, run in accordance with ISO 17043 and focused on the LNG & natural gas industries, a number of ISO 17025 synthetic gas samples are sent for analysis to all participating laboratories. Each laboratory then reports back their analytical results, which are then compared to the actual composition values. The closeness of each laboratory’s results to the actual composition forms the basis of a quantitative assessment of their capability and performance. The full set of results for all laboratories are reported anonymously to the whole group, with each participant being made aware of the identity of their own result.

EffecTech_Ltd3Analytical Support
EffecTech’s ISO 17025 accredited laboratories provide high quality analysis, testing and sampling services for natural gas and gas condensate samples.  In addition, we provide physical properties according to ISO 6976, hydrocarbon dewpoint to ISO 23874 and other combustion properties such as carbon emission factors. Sampling can be provided by one of our experienced engineers with comprehensive training to local staff for subsequent activities.

Flow Validation Services
EffecTech specialises in performing ISO 17025 accredited calibrations and validations of the secondary elements of any gas flow metering system. Typical customers are large consumers of gas such as power stations and producers including gas transmission and LNG terminal operators. In addition, EffecTech offers a troubleshooting and consultancy service to investigate and identify metering errors, lost or unaccounted for gas and suspected metering or energy imbalances across plant and hydrocarbon accounting chains.  We also witness metering validations as an independent third party where the end user does not own and maintain the flow measuring equipment.

EffecTech can also assist clients in the auditing of metering system maintenance, preparation of metering validation procedures, training and mentoring and attending factory acceptance tests (FAT) as well as advice on metering system design and specification.



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