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Chlorine Dioxide (ClO2) is a yellowish-green gas that has been used as a powerful disinfectant of water for over 100 years. In addition it is a preoxidant to control tastes and odor, control iron, manganese, hydrogen sulfide and phenolic compounds.

Typical applications where dangerous levels of Chlorine Dioxide (ClO2) might occur and benefit from a Chlorine Dioxide gas detector are:

• Water treatment
• Pulp and paper manufacturing
• Wastewater treatment

Chlorine irritates the respiratory system in low levels.

Exposure Limits (Source: OSHA)

Following are Chlorine Dioxide exposure limits that industries should be aware of when researching Chlorine Dioxide gas detectors and gas detection systems.

Definitions:

• TWA = Time Weighted Average exposure concentration for a normal 8-hour workday and 40-hour workweek
• STEL = Short Term Exposure Limit (Usually a 15-minute time-weighted average exposure that should not be exceeded at any time during a workday
• NIOSH (National Institute for Occupational Safety and Health)
  • REL = Recommended Exposure Limit
  • IDLH = Immediately Dangerous to Life or Health Concentration
• OSHA (Occupational Safety and Health Administration)
  • PEL = Permissible Exposure Limit
• ACGIH (American Conference of Government Industrial Hygienists)
  • TLV = Threshold Limit Value

Sierra Monitor has several different Chlorine Dioxide gas detectors dependent upon the application.

• Model 5100-08-IT smart gas detector utilizes electrochemical technology to detect levels of Chlorine Dioxide in the range 0 to 3 ppm.
• Model 4501-08 two-wire gas detector utilizes electrochemical technology to detect levels of Chlorine Dioxide in the range 0 to 3 ppm.