Table
2-6
Acceptable
reference
values
for
contaminants
Contaminant
Acceptable
reference
value
Hydrogen
sulfide
(H2S)
7.1
ppb
or
less
Sulfurous
acid
gas
(sulfur
oxide)
(SO2)
37
ppb
or
less
Hydrogen
chloride
(HCI)
6.6
ppb
or
less
Chlorine
(CI2)
3.4
ppb
or
less
Hydrogen
fluoride
(HF)
3.6
ppb
or
less
Nitrogen
dioxide
(nitrogen
oxide)
(NO2)
52
ppb
or
less
Ammonia
(NH3)
420
ppb
or
less
Ozone
(O3)
5
ppb
or
less
Oil
vapor
0.2
mg/m
3
or
less
Dust
0.15
mg/m
3
or
less
Seawater
(salt
damage)
Do
not
install
out
at
sea
or
within
500
m
(1,640.4
ft.)
of
the
seashore.
(However,
this
does
not
apply
if
air
conditioning
facilities
do
not
use
outside
air.)
when
the
relative
humidity
falls
below
30%.
The
set
optimal
relative
humidity
range
is
stricter
than
the
guidelines
applied
to
indoor
locations
with
more
relaxed
environmental
conditions
such
as
general
office
environments.
However,
if
the
server
is
installed
in
a
server
room,
this
condition
is
not
difficult
to
meet
because
server
rooms
utilize
highly
efficient
moisture-proof
materials
and
have
fewer
ventilation
cycles.
2.5.3
Contaminant
conditions
lists
the
acceptable
reference
values
for
contaminants
with
regard
to
the
SPARC
M10
systems.
2.6
Checking
Acoustic
Noise
Levels
This
section
describes
the
acoustic
noise
levels
of
the
SPARC
M10
systems.
The
acoustic
noise
levels
of
each
chassis
in
and
were
measured
according
to
the
following
conditions.
Measurement
environment:
Complying
with
ISO
7779
Ambient
temperature:
23°C
Fujitsu
M10/SPARC
M10
Systems
Installation
Guide
・
July
2015
40
Summary of Contents for M10 Series
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