Teltherm Instruments 1 views ♡

Portagreen 4 Gas Mixture is used in conjunction with a regulator for bump testing and calibration of gas detectors, environmental monitoring and other applications. 58 Litres 100 ppm CO, 18% O2, 25 ppm H2S, 50 % LEL in a balance of Nitrogen NIST traceable. Longer shelf life. For the latest Safety D...