RKI H2S 10 ppm / CO 300 ppm / CH4 1.45% vol / O2 15% vol in N2 34AL Calibration Cylinder Part# 81-0138RK-04 Model 105 Nitrogen dioxide is indicated as

Nitrogen dioxide is indicated as well

and 14 sec

drill a 1½-inch diameter hole into the concrete slab to a depth of approximately 1 3/4 inches

4" (213mm)

RKI H2S 10 ppm / CO 300 ppm / CH4 1.45% vol / O2 15% vol in N2 34AL Calibration Cylinder Part# 81-0138RK-04 Model 105 Nitrogen dioxide is indicated asRKI H2S 10 ppm CO 300 ppm CH4 1. 45% vol O2 15% vol in N2 34AL Calibration Cylinder Part# 81 0138RK 04 Bring some order to your calibration cylinders with these new calibration cylinder holders. Once cylinders have a regulator connected, they become top heavy and easily topple over. With RKIs new cylinder holders, you can secure your cylinder either free standing or mounted to a wall or bench. There are holders available to accommodate the following