GASCO 105L-135A-2.5% Methane Calibration Gas 2.5 % Methane (50 % LEL), Balance Air (20.9 % Oxygen balance Nitrogen) contained in a 105 Liter Aluminum cylinder With a C-10 connection, Calibration Certificate NIST, Made in the USA

Our Methane 50% LEL Precision Calibration Gas also known as Cal Gas, is used for the Calibration and Maintenance of Gas Detectors and Sensors. All of our GASCO Calibration Gas Cylinders ship with a Certificate of Analysis (COA). GASCO Calibration Gas meets or exceeds the requirements of the Original Gas Detection Equipment Manufactures Specifications. GASCO Calibration Gas is National Institute of Standards and Technology (NIST) Traceable, GASCO Calibration Gas is Made in the USA, and produced using an ISO 9001:2008 certified process.