Description
Description
The SafeAir chlorine & chlorine dioxide badge is a monitoring system designed to indicate the presence of chlorine and/or chlorine dioxide at concentrations below the permissible exposure limit. The SafeAir chlorine & chlorine dioxide badge detects the presence of chlorine and/or chlorine dioxide by forming a color change in the shape of an exclamation mark inside the triangle. This indication is produced by a color-forming reaction, which occurs when the contaminant(s) react with a flat indicator layer. The SafeAir chlorine & chlorine dioxide badge is a dual-purpose badge. The color change may appear on the front if chlorine is present and/or the backside of the badge if chlorine dioxide is present depending upon the level of exposure of the two contaminants.
Chlorine is a greenish-yellow gas with a pungent, irritating odor. Generally, chlorine is a potent respiratory system irritant. Mild exposures to chlorine cause burning of eyes, nose and mouth. Exposure to high concentrations (e.g. 1000 ppm) is likely to be fatal. The OSHA PEL (permissible exposure limit) for chlorine is 1 ppm (ceiling), whereas the NIOSH REL (recommended exposure limit) is 0.5 ppm (TWA).
Chlorine is an important chemical commodity widely used in the production of safe drinking water. It is also extensively used in the production of paper products, dyestuffs, textiles, petroleum products, chlorinated solvents, etc.
Chlorine dioxide is a yellow to reddish-yellow gas with an unpleasant odor similar to chlorine and suggestive of nitric acid. Exposure may be highly irritating to the skin and mucous membranes of the respiratory tract and may cause pulmonary edema (abnormal fluid buildup in the lungs). OSHA and NIOSH exposure limit for chlorine dioxide is 0.1 ppm (TWA).
Chlorine dioxide is used in the purification of water, the tanning and detanning of leather and the bleaching of cellulose, flour, leather, fats and textiles, as well as in the paper and pulp industry.
