GASTEC Hydrogen Cyanide (HCN) Detector Tubes
GASTEC Hydrogen Cyanide Detector Tubes provide a convenient, direct-reading method for measuring hydrogen cyanide (HCN) concentrations in air and gas samples. Designed for use with a compatible GASTEC gas sampling pump, these colorimetric detector tubes allow professionals to perform rapid on-site HCN measurements across a broad range of concentrations.
With available measurement ranges extending from 0.2–10 ppm to 0.05–1.6% hydrogen cyanide, GASTEC offers multiple HCN detector tube options for applications ranging from lower-level industrial hygiene and workplace air monitoring to higher-concentration industrial and process measurements.
Choose the Hydrogen Cyanide Detector Tube for Your Application
GASTEC offers multiple Hydrogen Cyanide Detector Tubes designed for different HCN concentration ranges. Select the appropriate GASTEC product number based on the anticipated hydrogen cyanide concentration and the requirements of your sampling application.
| GASTEC Product Number | Hydrogen Cyanide Measurement Range |
|---|---|
| 12H | 0.05–1.6% |
| 12M | 17–2,400 ppm |
| 12L | 0.5–150 ppm |
| 12LL | 0.2–10 ppm |
Direct-Reading Colorimetric HCN Measurement
GASTEC detector tubes use chemical detection reagents that react with the target gas as a measured volume of sample is drawn through the tube. The resulting color-change layer provides a visual indication of hydrogen cyanide concentration. The measurement can then be determined using the calibrated scale on the detector tube along with the sampling and correction instructions specified for the selected GASTEC product number.
This direct-reading approach provides a practical solution for spot measurements, industrial hygiene surveys, workplace assessments, process checks, environmental investigations, and maintenance applications where hydrogen cyanide concentrations need to be evaluated directly at the sampling location.
HCN Detector Tubes for Low to High Concentrations
For lower-level HCN measurements, the GASTEC 12LL (0.2–10 ppm) provides the lowest measurement range in this product selection. The GASTEC 12L (0.5–150 ppm) offers a broader ppm range for applications where hydrogen cyanide concentrations may vary more significantly.
For higher concentrations, the GASTEC 12M (17–2,400 ppm) extends measurement capability into the thousands-of-ppm range. For applications involving percentage-level hydrogen cyanide concentrations, the GASTEC 12H (0.05–1.6%) provides the highest concentration range in this product selection.
Key Features
- Designed specifically for hydrogen cyanide (HCN) measurement
- Four GASTEC product and measurement range options available
- Measurement ranges available in both ppm and percent HCN
- Available ranges from 0.2–10 ppm through 0.05–1.6%
- Direct-reading colorimetric gas detection method
- Calibrated detector tube scale for determining HCN concentration
- Options for low, intermediate, and high hydrogen cyanide concentrations
- Designed for rapid on-site measurements and field screening
- No electronic sensor or electrical power required at the detector tube
- Compact and portable solution for professional gas measurement
- Designed for use with a compatible GASTEC gas sampling pump
Common Applications
- Hydrogen cyanide concentration measurement
- Industrial hygiene investigations
- Workplace air monitoring
- Chemical processing facilities
- Industrial process monitoring
- Manufacturing operations
- Laboratory and research environments
- Environmental field investigations
- Maintenance and troubleshooting
- Occupational exposure investigations
- Field screening for HCN
Important Range Selection Information
Hydrogen cyanide concentrations can vary significantly between applications, making selection of the appropriate detector tube important. Individual GASTEC product numbers may require different sample volumes, pump strokes, sampling times, temperature corrections, or other measurement procedures. Potential interfering gases may also vary by tube. Always follow the instructions supplied with the specific GASTEC Hydrogen Cyanide Detector Tube being used.
GASTEC Detector Tubes for Professional HCN Measurement
Activated Carbon Depot supplies GASTEC detector tubes and compatible gas sampling equipment for industrial hygienists, safety professionals, environmental consultants, laboratories, maintenance personnel, and industrial facilities. With four Hydrogen Cyanide Detector Tube options covering lower-level ppm measurements through percentage-level HCN concentrations, users can select the GASTEC product number and measurement range that best matches their gas testing requirements.
Ways to Contact Us
Activated Carbon Depot
Email: sales@activatedcarbondepot.com
Phone: 949-229-2587




