Gastec Hydrogen Sulfide (H₂S) & Sulfur Dioxide (SO₂) Gas Detector Tubes provide a convenient method for measuring hydrogen sulfide and sulfur dioxide concentrations using a compatible Gastec gas sampling pump.
Designed for on-site gas detection, industrial hygiene, workplace air monitoring, occupational safety, process monitoring, and environmental testing, Gastec detector tubes provide a simple visual method for measuring gas concentrations without requiring electronic gas detection equipment.
Two detector tube options are available for different H₂S and SO₂ monitoring applications. The Gastec 45S is designed for separate quantification of hydrogen sulfide and sulfur dioxide, while the Gastec 45H measures the combined concentration of hydrogen sulfide and sulfur dioxide.
Gastec Hydrogen Sulfide & Sulfur Dioxide Detector Tube Options:
Gastec 45S Hydrogen Sulfide & Sulfur Dioxide Detector Tubes – Separate Quantification:
- Part Number: 45S
- Target Gases: Hydrogen Sulfide (H₂S) & Sulfur Dioxide (SO₂)
- Sulfur Dioxide (SO₂) Measuring Range: 0.25–20 PPM
- Hydrogen Sulfide (H₂S) Measuring Range: 1.25–120 PPM
- Measurement: Separate quantification of H₂S and SO₂
Gastec 45H Hydrogen Sulfide + Sulfur Dioxide Detector Tubes:
- Part Number: 45H
- Target Gases: Hydrogen Sulfide (H₂S) + Sulfur Dioxide (SO₂)
- Measuring Range: 0.02–8%
- Measurement: Combined H₂S + SO₂ concentration
- Quantity: 10 tubes per box
- Tests: 10 tests per box
Common Applications
Gastec Hydrogen Sulfide & Sulfur Dioxide 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, wastewater treatment facilities, pulp and paper operations, chemical manufacturing and processing, sulfur processing, environmental monitoring, process monitoring, and workplace safety applications where hydrogen sulfide and sulfur dioxide may be present.
Important
A compatible Gastec Gas Sampling Pump is required to use these detector tubes. The 45S and 45H provide different measurement functions and ranges, so select the appropriate detector tube based on whether your application requires separate H₂S/SO₂ quantification or a combined measurement.
Always 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:
- Gastec GV-110S Gas Sampling Pump with Stroke Counter, Thermal Ring & Case – Features an integrated stroke counter for convenient tracking during detector tube sampling.
- Gastec GV-100S Gas Sampling Pump with Thermal Ring & Case – A dependable manual gas sampling pump for use with compatible Gastec detector tubes.
Already have a Gastec pump? Simply select the appropriate detector tube for your target gases, measuring range, and measurement method.
Choose Instrument Depot for dependable Gastec hydrogen sulfide and sulfur dioxide detector tubes, H₂S detector tubes, SO₂ detector tubes, gas sampling pumps, gas detection accessories, calibration gas, fixed flow regulators, and industrial gas detection equipment.