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Notice Regarding Sulfuryl Fluoride
Sulfuryl Fluoride is an odorless gas that has no warning properties. There is a danger of serious damage to
health by prolonged exposure through inhalation.
The SF-ExplorIR™ Monitor provides accurate, real-time sulfuryl Fluoride concentration measurements.
Only qualified and trained operators are, with proper use of the SF-ExplorIR™ Monitor, able to re-
enter and provide final clearance of fumigated spaces.
The SF-ExplorIR
TM
Monito is a continuous read and continuous motion clearance device per SF
label requirements.
Principal of Measurement
The Spectros Instruments Sulfuryl Fluoride (SO
2
F
2
) Clearance Monitor (SF-ExplorIR™) is designed
to detect, quantify and display the concentration of SO
2
F
2
gas in the area being monitored.
The SF-ExplorIR
™
monitor uses non-dispersive infrared (NDIR) technology to detect low level
concentrations of sulfuryl fluoride and allows the final clearance and safe re-entry of fumigated spaces. The
concentration of sulfuryl fluoride is calculated according to absolute Laws of Physics. The calculation
compares a reference sample “zero air” (clean air in the internal air bag) against a sample reading.
Operation of Monitor
During normal operation the SF-ExplorIR™ displays both the current gas level and the peak gas level
detected on its front panel LCD. The monitor retains a log of previous readings that can easily be accessed
at a later time for analysis. Front panel indicators and an audible alarm are provided to signal gas alarm
and instrument fault conditions.
Aeration and Re-entry
Fumigators who are re-entering fumigation and risk areas to check for sulfuryl fluoride gas concentrations
must wear SCBA (Self Contained Breathing Apparatus) for respiratory protection until the concentration
within the structure has been confirmed to be 1 ppm or less. Please consult appropriate gas manufacturer’s
labels, state, and federal requirements.
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