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Hydrazine Dual Level SafeAir Badge, pk/50

Ships from the manufacturer usually in less than 1 week.


SKU 382020-50 Categories , Tag



The Hydrazine Dual Level Colorimetric SafeAir Badge is a monitoring system designed to indicate the presence of hydrazine at concentrations below the permissible exposure limit. The SafeAir hydrazine (N2H4) dual level badge detects the presence of hydrazine by forming a color change in the shape of a half triangle. This indication is produced by a color-forming reaction which occurs when hydrazine reacts with a flat indicator layer. A color change may appear non the front and/or the back side of the badge, depending upon the exposure dose.

Hydrazine (N2H4) is a colorless liquid with a penetrating odor resembling that of ammonia (NH3). It is extremely destructive to the tissues of the mucous membranes and upper respiratory tract. Symptoms of exposure may include coughing, wheezing, laryngitis, and shortness of breath, headache, nausea and vomiting. OSHA exposure limit for hydrazine is 1 ppm (TWA). NIOSH exposure limit for hydrazine is 0.03 ppm (2 hour ceiling). NIOSH recommends that hydrazine be handled as a potential occupational carcinogen in the workplace. Hydrazine (N2H4) is used predominantly as a fuel for rocket and jet engines and in the manufacturing of pharmaceuticals. Hydrazine salts are used in refining and as corrosion inhibitors.

Known Interferences Include: Methyl hydrazine and high concentrations of aromatic amines

Additional information

Weight 1 lbs


  1. Allow the badge to warm to room temperature prior to removing the badge from its protective pouch.
  2. For personnel monitoring, attach the badge near the user’s breathing zone (i. e. the collar) with the front side exposed to the surrounding atmosphere.
  3. For area monitoring, attach the badge to a stand and mount in a centralized area with the front side exposed to the surrounding atmosphere.
  4. The half triangle will change color when hydrazine is present. Please note that the color change will appear underneath the printed exposure dose (sensitivity).



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