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Evaluation of Gas Detector Tube Systems: Ozone.

PB93146041

Publication Date	1972
Personal Author	Johnson, B. A.
Page Count	15
Abstract	A performance study was conducted to determine the reliability of ozone (10028156) detector tubes. All the types of tubes available in the US were studied using concentrations of 0.5, 1, 2, and 5 times the threshold limit value (0.50 parts per million). Ozone was generated at known concentrations by irradiating a stream of purified air with a very stable low pressure mercury lamp. Of the two brands of tubes evaluated, neither met the acceptance standards. The Drager CH-313 tube was acceptable within an alternate accuracy limit of plus or minus 50%. The stain lengths were very short at the lower concentrations, and there was a significant amount of fading at the endpoint of the stain. The MSA 93865 tube was unacceptable at all concentrations tested.
Keywords	Ozone Air pollution detection Threshold detectors Gas detectors Occupational safety and health Industrial hygiene Performance evaluation Indoor air pollution Maximum permissible exposure Design criteria Gas analysis Chemical indicator tubes CAS 10028-15-6
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	68A - Air Pollution & Control 68G - Environmental Health & Safety 99A - Analytical Chemistry 57U - Public Health & Industrial Medicine 94D - Job Environment
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	See also PB93-142057.
Document Type	Technical Report
NTIS Issue Number	199308

Evaluation of Gas Detector Tube Systems: Ozone.

Evaluation of Gas Detector Tube Systems: Ozone.
PB93146041

Publication Date	1972
Personal Author	Johnson, B. A.
Page Count	15
Abstract	A performance study was conducted to determine the reliability of ozone (10028156) detector tubes. All the types of tubes available in the US were studied using concentrations of 0.5, 1, 2, and 5 times the threshold limit value (0.50 parts per million). Ozone was generated at known concentrations by irradiating a stream of purified air with a very stable low pressure mercury lamp. Of the two brands of tubes evaluated, neither met the acceptance standards. The Drager CH-313 tube was acceptable within an alternate accuracy limit of plus or minus 50%. The stain lengths were very short at the lower concentrations, and there was a significant amount of fading at the endpoint of the stain. The MSA 93865 tube was unacceptable at all concentrations tested.
Keywords	Ozone Air pollution detection Threshold detectors Gas detectors Occupational safety and health Industrial hygiene Performance evaluation Indoor air pollution Maximum permissible exposure Design criteria Gas analysis Chemical indicator tubes CAS 10028-15-6
Source Agency	National Institute for Occupational Safety and Health
NTIS Subject Category	68A - Air Pollution & Control 68G - Environmental Health & Safety 99A - Analytical Chemistry 57U - Public Health & Industrial Medicine 94D - Job Environment
Corporate Authors	National Inst. for Occupational Safety and Health, Cincinnati, OH.
Supplemental Notes	See also PB93-142057.
Document Type	Technical Report
NTIS Issue Number	199308