Gastec Formaldehyde (HCHO) Gas Detector Tubes provide a convenient method for measuring formaldehyde 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 a wide variety of formaldehyde monitoring applications, from low-level PPM measurements to significantly higher-concentration testing.

Gastec Formaldehyde Detector Tube Options:

Gastec 91LL Formaldehyde Detector Tubes:

  • Part Number: 91LL
  • Target Gas: Formaldehyde (HCHO)
  • Formaldehyde Measuring Range: 0.05–1 PPM
  • Quantity: 10 tubes per box
  • Tests: 10 tests per box

Gastec 91L Formaldehyde Detector Tubes:

  • Part Number: 91L
  • Target Gas: Formaldehyde (HCHO)
  • Formaldehyde Measuring Range: 0.1–40 PPM
  • Quantity: 10 tubes per box
  • Tests: 10 tests per box

Gastec 91 Formaldehyde Detector Tubes:

  • Part Number: 91
  • Target Gas: Formaldehyde (HCHO)
  • Formaldehyde Measuring Range: 2–100 PPM
  • Quantity: 5 detector tubes + 5 pretubes per box
  • Tests: 5 tests per box

Gastec 91M Formaldehyde Detector Tubes:

  • Part Number: 91M
  • Target Gas: Formaldehyde (HCHO)
  • Formaldehyde Measuring Range: 8–6,400 PPM
  • Quantity: 10 tubes per box
  • Tests: 10 tests per box

Common Applications

Gastec Formaldehyde Gas Detector Tubes can be used with compatible Gastec sampling equipment for workplace air monitoring, industrial hygiene surveys, occupational exposure assessment, indoor air quality testing, building and construction material monitoring, laboratories, healthcare and medical facilities, chemical manufacturing and processing, resin and adhesive manufacturing, wood products and furniture manufacturing, environmental monitoring, process monitoring, and workplace safety applications where formaldehyde may be present.

Important

A compatible Gastec Gas Sampling Pump is required to use these detector tubes. The Gastec 91 Formaldehyde Detector Tubes include 5 detector tubes and 5 pretubes, providing 5 complete tests per box. Always select the appropriate detector tube and measuring range for your target gas 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 formaldehyde detector tubes, gas sampling pumps, Gastec detector tubes, gas detection accessories, calibration gas, fixed flow regulators, and industrial gas detection equipment.