Nextteq NX204H Phosphine - High Range Detector Tubes, 100-3200 ppm - 10/Pack

Detector tubes are primarily designed to measure the specific gases their tube names imply. But it is possible to measure other substances of similar chemical properties with the aid of a correction factor or correction chart; these are outlined in the operating instructions and in the Nextteq detector tube handbook for applicable tubes.

• High quality glass tube tip break easily and do not shatter for your safety
• 3 year shelf life
• 200 - 3200 ppm range per 1/2 pump stroke
• 100 - 1600 ppm range per 1 pump stroke
• Interferences include sulfur dioxide, hydrogen sulfide, nitrogen dioxide

Subject to a 30% restocking fee. Items must be returned unopened and in resellable condition.