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Environmental monitoring

Site surveys for leak detection and emission measurement

Accurate measurement for identifying and quantifying leaks  

NPL offers a range of on-site leak detection and measurement capabilities that can be incorporated into a site survey service aimed at identifying and quantifying leaks.   

Portable IR-based gas leak detectors 

Initial site walkovers can be carried out using fast response gas detecting instruments to identify leaks through the change in local gas concentrations. Typically used to detect methane these provide a quick method to find leaks.  

Optical gas imaging 

NPL has a range of optical gas imagining systems (OGIs) which are sensitive to hydrocarbons and CO2 and can quickly identify sources of emission during a site survey. When combined with measurement techniques, such as local DIAL, these sources can be both identified and subsequently quantified.




Bacharach high flow sampler 

NPL can also deploy local Bacharach high flow samplers to quantify individual leaks identified using other techniques. This 'virtual bagging' technique quantifies emissions from individual leaking components. Sensitive to methane and a range of other hydrocarbons, this can provide data for reporting leak rates and enables quantification of the emission reduction from leak repair. 


Don’t see what you are looking for? Our diverse skill set enables us to provide bespoke solutions. Please contact us to discuss your requirements. 

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