Specification Sheet

9
conditions before making their nal
selection.* If a chemical cartridge
is used, a change schedule must be
established to replace the cartridges
before the end of their service life.
E. These compounds have been identied
as possibly existing in both vapor and
particulate phase in the workplace.
Even though these chemicals would
be expected to be in the vapor phase,
when other aerosols are present or
there is high humidity, it is possible
that the vapor may be adsorbed onto
these coexisting particles or dissolved
in available water droplets; therefore,
3M recommends a lter for the
particulate phase be used in addition
to the traditionally accepted chemical
cartridge. It is the user’s responsibility to
determine whether both forms coexist.
Both chemical properties and use
conditions/processes can aect the
physical form in the workplace. Users
should consider specic exposure
data and workplace conditions before
making their nal selection.*
F. It is believed that an N-series lter is
sucient since these materials will
not coat the lter bers, but since this
material may contain oil aerosols, an
R- or P-series lter is recommended
until further research or a regulatory
agency takes a specic position.
G. R- or P-series lters have been
recommended pending more research
as to how these materials aect the
lter bers.
H. Listing of 3M 3510, 3530, 3550, or
3720 refers to a 3M
™
Personal Air
Monitor which may be used to measure
the amount of contaminant in the air.
Monitors may also be used to sample for
other materials with analysis performed
by a private laboratory.
You should check with the laboratory
to determine what other chemicals can
be measured with the monitors. An
estimate of the airborne concentration
is needed for making appropriate
respirator selection and establishing a
cartridge change schedule.
Contact the toll free 3M PSD Technical
Service Line at 1-800-243-4630 if you have
questions about the use of this guide or the
proper selection and use and lim i ta tions of
any 3M respirators.
* See Perez, C. and S. C. Soderholm: Some Chemicals Requiring Special Consideration When Deciding Whether to Sample the Particle, Vapor, or Both Phases of an
Atmosphere. Appl. Occup. Hyg. 6(10): 859-864 (1991).