Ecoxy is a leading provider of emission measurements, specializing in offshore and maritime sectors. Ecoxy conducts emission measurements on diesel and gas engines, gas turbines and boilers.
Accredited measurements of air emissions – delivered with expertise
In today’s market, there are increasingly stringent requirements for emissions documentation in both the maritime and offshore sectors. Ecoxy is an experienced and accredited third party performing precise exhaust gas measurements from diesel and gas engines, gas turbines, boilers, and process plants – delivering reliable measurement data that comply with both national and international standards and regulations.
We measure emissions such as NOx, CO, CO₂, SO₂, CH₄, NH₃, O₂, HC, and particulate matter (PM). Our services cover a wide range of industries, including maritime, oil and gas, district heating, and process industries.
What does this mean for you as a customer?
Accurate documentation: Our accredited measurements comply with requirements such as the Norwegian NOx regulations, Activity Regulation §70b and §70c, as well as international standards including the IMO NOx Technical Code and ISO 11042-1:1996.
Support for fees and funding schemes: Our measurement data provide a reliable basis for accurate reporting to authorities such as IMO and the NOx Fund, and support applications for funding related to emission reduction technologies, such as SCR systems.
Data-driven decision support: With accurate and verifiable emission measurements, we provide the insights needed to optimize operations and implement effective emission reduction strategies – contributing to both environmental benefits and cost savings.
Standard reference methods for analysis
The measurements are made in accordance with IMO NOx Technical Code / ISO 8178-2:2021 for diesel and gas engines and ISO 11042-1:1996 for gas turbines. For processes on land we work according to the standards NS-EN 14789:2017, NS-EN 14792:2017, NS-EN 15058:2017, NS-EN 12619:2013. The gas analyzers used operate in accordance with the standard reference methods defines for each gas component as stated in the aforementioned standards:
CLA for NOx
NDIR for CO and CO2
PMA for O2
HFID for HC
All analyzers are placed in one instrument (Horiba PG-250). All gas analysis is done on the sample gas after it has been cooled and dried.
The sample system consists of:
Sample probe
(316 SS)
Filter
(to remove particles)
Heated sample line
(to keep the water in the exhaust gas evaporated to avoid absorption of NO2 in the water in front of the cooler)
Electric cooler
(to remove the water quickly before the sample enters the NOx analyzer to avoid absorption of NO2 in the water)
Gas analyzer instrument
(Horiba PG350)
LabVIEW based data acquisition system
Necessary post processing of the measurement data to calculate the mass emissions are made in accordance with the aforementioned standards.

Contact:
Jim Thomas Gundersen
Managing Director
Tel: +47 412 10 923
Mail: post@ecoxy.no
News
Ecoxy and Equinor signs frame agreement for measuring emissions to air
Ecoxy AS has been awarded a framework agreement for delivery of measurements of emissions to air from Equinor's offshore installations and onshore plants in Norway.
FROM ACCURATE DATA TO DECISIONS – The power of knowing your environmental impact by quantifying methane and NOx emissions
This week, Ecoxy measured CH4 (methane) and NOx-emissions on Havila Polaris and Havila Pollux, two of Havila Voyages' new cruise ships that sails along the Norwegian coast. "It is both reassuring and important for us to have Ecoxy on board so that we can prove that our emission levels are actually as low as we think they are." Havila Voyages states.
Ecoxy is launching digital ordering service
This method will greatly simplify the submission of requests for emission measurements and EU ETS verification services. By completing and submitting the form, you will shortly be contacted by Ecoxy and obtain a non-binding offer.





