Description
Dräger Nitrogen Dioxide Calibration Gas 25 ppm , 58L N₂ PN 4594959 ABT7PDU006B 6 mm Inside diameter 4 6 mm Inside diameter 4 mm Advice for sample taking The air tube analysed must be drawn through the tube at a constant flow rate between 0 Second Environment Filter per CE EMC directive (89 336 EEC)