
INDUSTRIAL SCIENTIFIC 18109193 GAS CAL 250PPM CO 25PPMH2S 18% O2 2.5% METHANE
Description
All industrial scientific calibration cylinders are manufactured to the highest quality standards and include NIST traceable blend techniques, analytical leak testing of every cylinder, certified component concentrations and clearly marked lot numbers and expiration dates.
Packages
EA - 1 EA PER EA |