Benzene Detection Tubes (2 to 312 ppm)

There are no reviews yet. | Write a review
Item #: 121S
MFG: GasTec
UOM:Box of 10
$94.58 Was: $102.98
View additional buying options

Benzene Detection Tubes (2 to 312 ppm)

121S | Measures Benzene

  • Measuring Range:
    • 2 to 5 ppm - 4 pump strokes - Correction factor: 0.4
    • 5 to 120 ppm - 2 pump strokes - Correction factor: 2
    • 120 to 312 - 1 pump stroke - Correction factor: 2.6
  • Sampling Time: 2 minutes per pump stroke
  • Detecting Limit: 0.5 ppm (n=4)
  • Changes from White to Dark Green
  • 3 Year Shelf Life
  • TLV-TWA, C (ACGIH) (ppm): .5
  • Reaction Principle: C 6H6 + I2O5 + H2S2O7 → I2
  • Coefficient of Variation: 20% (for 5 to 40 ppm), 15% (for 40 to 120 ppm)
  • Store the tubes at a cool and dark place.
  • Comes in a Box of 5 pretubes and 5 detector tubes