The Hydrazine Dual Level SafeAir Badge is a lightweight, easy-to-use chemical detection tool designed to alert workers to the presence of hydrazine. These badges provide a clear visual indication when exposure occurs, changing color from orange to maroon.
Below, you can see the comparison of a new badge versus a used badge after exposure—notice the visible color change that makes it simple to recognize when hydrazine is present.
The SafeAir badge can be used for personnel or area monitoring, with exposure times ranging from 5 minutes up to 2 consecutive days.
Why Hydrazine Monitoring Matters
Hydrazine is a colorless liquid with a strong, ammonia-like odor. It is highly toxic and extremely destructive to the tissues of the mucous membranes and upper respiratory tract.
Symptoms of exposure may include:
- Coughing
- Shortness of breath
- Wheezing
- Laryngitis
- Headache
- Nausea and vomiting
Exposure Limits:
- OSHA PEL (Permissible Exposure Limit): 1 ppm (TWA)
- NIOSH Ceiling Limit: 0.03 ppm (2-hour ceiling)
- NIOSH Guidance: Treat hydrazine as a potential occupational carcinogen
Hydrazine is most often used as a rocket and jet fuel, in pharmaceutical manufacturing, and in corrosion inhibitors and refining processes. Because of its hazards, accurate monitoring is critical.
Principle of Operation
The Hydrazine SafeAir badge is designed to detect hydrazine below the permissible exposure limit.
- The badge contains a flat indicator layer that reacts with hydrazine, producing a color-forming reaction.
- A half-triangle shape appears in maroon, signaling exposure.
- The color change may appear on one or both sides of the badge depending on the dose.
This simple visual cue ensures that workers can quickly recognize and respond to hazardous exposures.
Operating Instructions
- Remove the pouch from refrigeration and allow it to warm to room temperature.
- Remove the badge from its protective pouch.
- For personnel monitoring, clip the badge near the breathing zone (collar) with the front side exposed.
- For area monitoring, mount the badge in a central location with the front side exposed.
- Watch for the half-triangle color change beneath the printed exposure dose.
- To determine average concentration: divide the exposure dose (ppb-hr) by the exposure time in hours (hr)
Storage
For best performance, the Hydrazine Dual Level SafeAir Badge should be kept refrigerated in its sealed bag until use.
Important Note on Humidity
At relative humidities above 55%, results should be corrected by multiplying by a factor of 1.13 for every additional 10% RH beyond 55%. This ensures accurate concentration readings in humid environments.
Conclusion
The Hydrazine Dual Level SafeAir Badge (382020-50) provides a simple, cost-effective, and reliable method of detecting hydrazine exposure in both personnel and area monitoring applications. With its color-changing visual alert, it offers an immediate indication of hazardous conditions—helping keep workers safe in industries where hydrazine is used.
You can find this product here: https://www.gas-sensing.com/hydrazine-dual-level-safeair-badge-382020-50.html
