Gastec Benzene (C₆H₆) Gas Detector Tubes provide a convenient method for measuring benzene vapor concentrations in air using a compatible Gastec gas sampling pump.

Designed for on-site gas detection, industrial hygiene, workplace air monitoring, occupational safety, and environmental testing, Gastec detector tubes provide a simple visual method for measuring specific gas and vapor concentrations without requiring electronic gas detection equipment.

Multiple measuring ranges are available to accommodate different benzene monitoring applications, from low-level measurements to higher-concentration testing. Select Gastec Benzene Detector Tubes utilize pretubes as part of the sampling process.

Gastec Benzene Detector Tube Options:

Gastec 121 Benzene Detector Tubes:

  • Part Number: 121

  • Target Gas: Benzene (C₆H₆)

  • Benzene Measuring Range: 2.5–120 PPM

  • Quantity: 10 detector tubes per box

  • Tests: 10 tests per box

Gastec 121SP Benzene Detector Tubes:

  • Part Number: 121SP

  • Target Gas: Benzene (C₆H₆)

  • Benzene Measuring Range: 0.2–66 PPM

  • Quantity: 5 detector tubes + 5 pretubes per box

  • Tests: 5 tests per box

Gastec 121L Benzene Detector Tubes:

  • Part Number: 121L

  • Target Gas: Benzene (C₆H₆)

  • Benzene Measuring Range: 0.1–65 PPM

  • Quantity: 5 detector tubes + 5 pretubes per box

  • Tests: 5 tests per box

Gastec 121SL Benzene Detector Tubes:

  • Part Number: 121SL

  • Target Gas: Benzene (C₆H₆)

  • Benzene Measuring Range: 1–100 PPM

  • Quantity: 5 detector tubes + 5 pretubes per box

  • Tests: 5 tests per box

Gastec 121S Benzene Detector Tubes:

  • Part Number: 121S

  • Target Gas: Benzene (C₆H₆)

  • Benzene Measuring Range: 2–312 PPM

  • Quantity: 5 detector tubes + 5 pretubes per box

  • Tests: 5 tests per box

Common Applications

Gastec Benzene Gas Detector Tubes can be used with compatible Gastec sampling equipment for workplace air monitoring, industrial hygiene surveys, occupational exposure assessment, petroleum and petrochemical operations, refineries, fuel storage and handling, chemical manufacturing and processing, laboratory environments, environmental monitoring, process monitoring, and workplace safety applications where benzene vapors may be present.

Important

A compatible Gastec Gas Sampling Pump is required to use these detector tubes. Some Benzene Detector Tube options utilize a pretube in conjunction with the detector tube and provide 5 complete tests per box. Always select the appropriate detector tube and measuring range for your application and follow the manufacturer's sampling instructions and correction factors, when applicable, for the specific tube being used.

Need a Gastec Sampling Pump?

Gastec detector tubes require a compatible Gastec Gas Sampling Pump for proper sampling and measurement. Complete your gas detection setup with one of our available Gastec sampling pumps:

Already have a Gastec pump? Simply select the appropriate detector tube for your target gas and measuring range.

Choose Instrument Depot for dependable Gastec benzene detector tubes, gas sampling pumps, Gastec detector tubes, gas detection accessories, calibration gas, fixed flow regulators, and industrial gas detection equipment.