Permeation tubes

	Type "EL" certified with accuracy of 2% Measure: diameter 7 mm; length 84+a mm a= lenght of permeable tube proportional to desidered permeation rate - gas type: Sulfur Dioxide - gas type: Nitrogen Dioxide Range of permeation rate ±20%
	Type "wafer" certified with accuracy of 5% Measure: diameter 16,4 mm; length 46,5 mm - gas type: Sulfur Dioxide - gas type: Nitrogen Dioxide special certification 2% Range of permeation rate ±25%
	Type "wafer ML" certified with accuracy of 5% Measure: diameter 15,8 mm; length 54 mm - gas type: Sulfur Dioxide - gas type: Nitrogen Dioxide special certification 2% Range of permeation rate ±25%
	Type "BTX" certified with accuracy of ± 2 ng/min Measure: diameter 16,4 mm; length 46,5 mm - gas type: Benzene - gas type: Toluene - gas type: o-Xilene Range of permeation rate ±25%
	Type "wafer ML" certified with accuracy of 5% Measure: diameter 9,5 mm; length 88 mm - gas type: Sulfur Dioxide - gas type: Nitrogen Dioxide special certification 2% Range of permeation rate ±25%
	Type "Easy span" certified with accuracy of 5% - gas type: organic substance liquid at room temperature "easy span" may be used at ambient temperature, permeation rate is low and linear temperature dependendend. Each tube is supplied with a tee connection (¼ inch) and calibration certificate with a graph which shows permeation rate vs. temperature from 16 to 25 °C.
	Sample filters for air quality analyzers microporous PTFE, pore size: 1 µm - package 50 filters, dia 37 mm, - package 50 filters, dia 47 mm, microporous PTFE, pore size: 5 µm; - package 50 filters, dia 37 mm, - package 50 filters, dia 47 mm,
	UV Lamp for SO2 analyzers
	PID Lamps for BTX analyzers
	Molybdenum rod 20 x 200 mm (dia x leght)
	Molybdenum chips
	Molybdenum converter Services: Molybdenum converter regeneration

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