MIRAN Gas MeterDetector MIRAN Gas MeterDetector Introduction Air

MIRAN Gas Meter/Detector

MIRAN Gas Meter/Detector Introduction Air monitoring data is useful for: * Assessing the health risks to the public and response workers. * Selecting personal protective equipment. * Delineating areas where protection is needed. * Determining actual or potential effects on the environment. * Selecting actions to mitigate the hazards safely and effectively.

MIRAN Gas Meter/Detector To be useful air monitoring instruments must be: * Portable and rugged. * Easy to operate. * Inherently safe. * Able to generate reliable and useful results.

MIRAN Gas Meter/Detector n The response time, sensitivity, selectivity, accuracy and precision of an instrument are important in evaluating the reliability and usefulness of the data the instrument generates.

MIRAN Gas Meter/Detector Limitations & Considerations Temperature n Oxygen Levels n Interfering Coumpounds u Organic Lead u Sulfur compounds u Silicone u Acid Gases n

Toxic Atmosphere Monitors Toxic atmosphere monitoring is done to: * identify airborne concentrations that could pose a toxic risk to response workers and the public. * evaluate the need for and type of personal protective equipment. * set up work zones or areas where contaminants are or are not present.

MIRAN Gas Meter/Detector n Portable Infrared(IR) n Microprocessor controlled, single beam n Capable of detecting hundreds of compounds

MIRAN Gas Meter/Detector Sample is drawn at 25 -30 L/min n Sample absorbs IR energy from the “Nichrome” wire n Energy absorbed by sample correlates to ppm n

MIRAN Gas Meter/Detector Capable of measuring various gases at same time n Compares to computerized list and displays most probable agent detected n Good for inorganic and organic compounds n

References Cited http: //www. ashteadtechnology. com/instruments/new_instrument s. htm Accessed 05/02/01 NIOSH Manual of Analytical Methods (NMAM®), 4 th ed. DHHS (NIOSH) Publication 94 -113 (August, 1994), Cassinelli, M. E. & O'Connor, P. F. (pfo 1@cdc. gov), Eds.

Bibliography Di. Nardi Salvatore R. (1998) The Occupational Environment-Its Evaluation and Control, AIHA, Fairfax, Virginia n Goetsch David L. (1999) Occupational Safety and Health for Technologists, Engineers, and Managers, Prentice Hall, Upper Saddle River, New Jersey n