20 PPM Carbon Monoxide Calibration Gas, Balance Air, 103 Liter Steel Cylinder.

Description

20 PPM Carbon Monoxide (CO) calibration gas with a balance of air contained in a 103 Liter steel cylinder. Use to calibrate any gas detector requiring the specified gas concentration and mixture. Manufactured under ISO:9002 quality standards by NorLab Specialty Gases with NIST traceability certification.