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Sulfur Dioxide
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Model TA-2100
3 or 4-Wire Type

Model TA-2102
Loop Powered Type
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Sulfur Dioxide Gas Detector Features

Occupational Exposure Values - Compiled by ACGIH
(shown for reference only - verify latest values)

ACGIH TLV Values

ACGIH Values - Sulfur Dioxide | SO2
Threshold limit value (TLV): 0.25 ppm, 0.65 mg/m3 STEL

OSHA PEL Values

OSHA PELs - Sulfur Dioxide | SO2
Permissible Exposure Limits: 5 ppm, 13 mg/m3 TWA

NIOSH REL Values

NIOSH RELs - Sulfur Dioxide | SO2
Recommended Exposure Limit (REL): 2 ppm, 5 mg/m3 TWA; 5 ppm, 13 mg/m3 STEL

Chemical Properties & Uses

Sulfur dioxide is a colorless gas with a pungent odor. It is a liquid when under pressure, and it dissolves in water very easily. The primary sources of sulfur dioxide emissions are from fossil fuel combustion and natural volcanic activity. Sulfur dioxide in the air comes mainly from activities such as the burning of coal and oil at power plants or from copper smelting.

Sulfur dioxide is primarily produced for sulfuric acid manufacture. Sulfur dioxide is also used as a pharmaceutical aid and antioxidant. Sulfur dioxide is sometimes used as a preservative for dried apricots, dried figs, and other dried fruits. Sulfur dioxide is also a good reductant. In the presence of water, sulfur dioxide is able to decolorize substances. Specifically, it is a useful reducing bleach for papers and delicate materials such as clothes. SO2 is also a very important compound in winery sanitation.

Sulfur dioxide gas is highly toxic and readily irritates the skin and mucous membranes of the eyes, nose, throat, and lungs.

Sulfur dioxide gas is highly toxic and proper safeguards, including gas monitoring, are deemed critical to industrial health and safety programs.

Sulfur Dioxide Gas Detector Spec's

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Sulfur Dioxide Gas Detector

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Sulfuric Acid Production
Pulp & Paper Mills
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Food & Beverage
Dried Fruit Production
Fruit Preservatives
Fungicides
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Mil-Ram Technology, Inc.
Toxic - LEL Combustible - Oxygen - VOCs
Hydrides - Hydrocarbons - Refrigerants
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Gas &  Fire Detection Systems
Tel: 510-656-2001    Fax: 510-656-2004
Email: sls@mil-ram.com    Silicon Valley, Fremont, CA