York YZ MODEL A - Page 157

JOHNSON CONTROLS
157
APPENDIX - MATERIAL SAFETY DATA SHEETS
FORM 161.01-OM1
ISSUE DATE: 6/8/2018
CEFSHP62
Du Pont
Material Safety Data Sheet
Page 3
Printed on 03/09/2011
Notes to Physicians
THIS MATERIAL MAY MAKE THE HEART MORE SUSCEPTIBLE TO
ARRHYTHMIAS. Catecholamines such as adrenaline, and other
compounds having similar effects, should be reserved for
emergencies and then used only with special caution.
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FIRE FIGHTING MEASURES
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Flammable Properties
Flash Point : No flash point
Flammable Limits in Air, % by Volume:
LEL : None per ASTM E681
UEL : None per ASTM E681
Autoignition: Not determined
Fire and Explosion Hazards:
Cylinders may rupture under fire conditions. Decomposition
may occur.
Contact of welding or soldering torch flame with high
concentrations of refrigerant can result in visible changes
in the size and color of torch flames. This flame effect
will only occur in concentrations of product well above the
recommended exposure limit, therefore stop all work and
ventilate to disperse refrigerant vapors from the work area
before using any open flames.
R-404A is not flammable in air at temperatures up to 100
deg C (212 deg F) at atmospheric pressure. However,
mixtures of R-404A with high concentrations of air at
elevated pressure and/or temperature can become combustible
in the presence of an ignition source. R-404A can also
become combustible in an oxygen enriched environment (oxygen
concentrations greater than that in air). Whether a mixture
containing R-404A and air, or R-404A in an oxygen enriched
atmosphere becomes combustible depends on the
inter-relationship of 1) the temperature 2) the pressure,
and 3) the proportion of oxygen in the mixture. In general,
R-404A should not be allowed to exist with air above
atmospheric pressure or at high temperatures; or in an
oxygen enriched environment. For example: R-404A should
NOT be mixed with air under pressure for leak testing or
other purposes.
Experimental data have also been reported which indicate
combustibility of HFC-134a, a component in this blend, in
the presence of chlorine.
Print Date: 3 - 10 - 2011