Your site is equipped with fixed or portable detectors which need regular calibration. Such analyzers may include flammable, non-breathable or explosive atmosphere detection, air pollution monitors... 
examples of analyzers - featured by permission of the manufacturer -
Our detection safety offer includes :
All gases, especially the standard mixtures prepared to correspond with the sample to be measured, completed with analysis certificates:
flammable gases CH4, C3H8, iC4H8 in mixtures with air,
toxic gases H2S, SO2, Cl2, HCl, HCN, and NH3 in mixtures with nitrogen, at concentrations approved by the equipment manufacturers
All the various supply methods, and especially CALGAZ, the ultra-light, non-refillable cylinder, completed with installation kit
All the equipment used to set up and/or streamline your installations
"A la carte services": supply, installation and maintenance of your site's detectors