Carbon Monoxide Monitoring

Presented by: Interscan Corporation

SYNONYMS

•Coal gas•Carbon oxide•Carbonic oxide•Exhaust gas•Flue gas•Monoxide

CARBON MONOXIDE

CARBON MONOXIDE IS THE MOST COMMON TOXIC GAS

As a product of combustion, it is ubiquitous

CO is one of the few toxic gases that can be encounteredat home or on the job

Colorless and odorless, CO is a silent killer

CO HEALTH EFFECTS

At 200-300 ppm, can cause fatigue in healthy individuals, and chest pain in those with heart disease.

At higher concentrations, can cause impaired vision and coordination; headaches; dizziness; confusion; nausea.

Can cause flu-like symptoms (ca. 250 ppm) that clear upwhen in clean air.

At 2000 ppm, can be rapidly fatal

TOXICOLOGY

Carbon monoxide is an asphyxiant

Inhalation of CO causes tissue hypoxia by preventing the blood from carrying sufficient oxygen

Carbon monoxide combines reversibly with hemoglobin to form carboxyhemoglobin

The reduction in oxygen-carrying capacity of the blood is proportional to the amount of carboxyhemoglobin formed

Occupational Exposure Standards

OSHA Standards (as of Feb, 2011)

The OSHA PEL ( Permissible Exposure Limit, based on an 8-hour time-weighted average) is 50 ppm

Special provision for maritime workers/longshoring [29 CFR 1918.94(a)(1)(i))]

…employees shall be removed from the enclosed space if the CO concentration exceeds a ceiling of 100 ppm.

Exception: The ceiling shall be 200 ppm instead of 100 ppm for Ro-Ro operations.

ACGIH TLV® [Threshold Limit Value]

(as of Feb, 2011)

TLV-TWA (based on an 8-hour time-weighted average) is 25 ppm

Biological Exposure Index (BEI®) is recommended for carbon monoxide ─

Based on percent carboxyhemoglobin saturation in blood, or end-expired CO concentration in alveolar air

NIOSH REL [Recommended Exposure Limits]

(as of Feb, 2011)

TLV-TWA (based on an 8-hour time-weighted average) is 35 ppm

Ceiling value of 200 ppm (should not be exceeded at any time)

NIOSH IDLH [Immediately Dangerous to Life and Health]

(as of Feb, 2011)

IDLH: The airborne concentration from which a worker could escape without injury or irreversible health effects, in the event of the failure of respiratory protection equipment.

IDLH values are based on effects that might occur as a consequence of a 30-minute exposure.

Regardless of the 30-minute basis, if equipment failure occurs,LEAVE THE AREA AT ONCE!!

1200 ppm

GRADE “D” BREATHING AIR Per ANSI / CGA G-7.1.1989

As it pertains to carbon monoxide…

No more than 10 ppm

Applications Engineering

AT A MINIMUM, CONSIDER

Portable/survey or fixed continuous monitoring requirement?

Interfering gases present?

Will unit be used/installed in electrically hazardous area?

Is data logging needed?

Some Carbon Monoxide Monitoring Products

Offered By

PORTABLE ANALYZER

CONTINUOUS MONITORING SYSTEMSINGLE POINT APPLICATION

CONTINUOUS MONITORING SYSTEMTWO POINT APPLICATION

CONTINUOUS MONITORING SYSTEMMULTI-POINT (THREE OR MORE) APPLICATION

For Survey Applications,We Recommend Our Nomad Data Logger

12-bit resolution

Models available for 0-100mV, 0-2.5Vand 4-20mA inputs

Self-contained units also available for temperature, humidity and pH

Sampling rate adjustable—1 second to 10 hours in 1 second intervals

Storage capacity—16336 readings

Excellent software included

Visualize your measurement session with an auto-scaling time history graph

Time history graph detail screen

Zoomed in on particular portion of the curve

Ability To View All Individual Data Points

ARC-MAX® DATA ACQUISITION, ARCHIVING,

AND REPORTINGPACKAGE

ARC-MAX® is designed to meet and exceed all toxic gas regulatory reporting requirements

Protect your employees…AND your company!

Only ARC-MAX® gives you

Shift reports, supporting up to four shifts/day, and the shifts can overlap

Alarm logs, updated as alarms occur

Live and historic trending

STEL and TWA tracking, continuously updated

ARC-MAX® MAIN SCREEN

ARC-MAX® SHIFT REPORT

ARC-MAX® TRENDING

ARC-MAX® ALARM LOG

For more information on how Interscan can help you solve your carbon monoxide problems,

Visit our website

http://www.gasdetection.com