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STEC
No.93 Instructions for
Acrolein Detector Tube
FOR SAFE OPERATION :
Carefully
read
this
manual
and
the
instruction
manual
of
your
Gastec
Gas
Sampling
Pump.
&WARNING:
1.
Use
only
Gastec
detector
tubes
in
a
Gastec
Pump.
2.
Do
not
interchange
or
use
non-Gastec
parts
or
components
in
Gastec's
detector
tube
and
pump
system.
3.
The
use
of
non-Gastec
parts
or
components
in
Gastec's
detector
tube
and
pump
system,
or
use
of
a
non-Gastec
detector
tube
with
a
Gastec
pump,
or
use
of
a
Gastec
detector
tube
with
a
non-Gastec
pump
may
result
in
property
damage,
serious
bodily
injury,
and
death;
voids
all
warranties;
and
voids
all
performance
and
data
accuracy
guarantees.
&.
CAUTION : If you do not observe
the
following precautions,
you
may
suffer injuries or damage
the
product.
1.
When
breaking
the
tube
ends,
keep
away
from
eyes.
2.
Do
not
touch
the
broken
glass
tubes,
pieces
or
reagent
with
bare
hand(s).
3.
The
sampling
time
represents
the
time
necessary
to
draw
the
air
sample
through
the
tube.
The
tube
must
be
positioned
in
the
desired
sampling
area
for
the
entire
sampling
time
or
until
the
flow
finish
indicator
indicates
the
end
of
the
sample.
.6..NOTES :
For
maintaining performance
and
reliability
of
the
test
results, observe
the
following.
1.
Use
Gastec
Gas
Sampling
Pump
together
with
Gastec
Detector
Tubes
only
for
the
purposes
specified
in
the
instruction
manual
of
the
detector
tube.
2.
Use
this
tube
within
the
temperature
range
of
O
40°C
(32
104°F).
3.
Use
this
tube
within
the
relative
humidity
range
of
O-
90%.
4.
This
tube
may
be
interfered
with
by
the
coexisting
gases.
Please
refer
to
the
table
"INTERFERENCES"
below.
5.
Shelf
life
and
storage
condition
of
the
tube
are
marked
on
the
label
of
the
box
of
tube.
APPLICATION OF THE TUBE :
Use
this
tube
for
detecting
Acrolein
in
the
air
or
in
industrial
areas
and
for
determining
the
environmental
atmospheric
condition.
SPECIFICATION :
(Because
of
Gastec's
commitment
to
continued
improvement,
specifications
are
subject
to
change
without
notice.)
Detecting
Layer
Measurina
Ranae
3.3
10
ppm
10
800
ppm
Number
of
Pump
Strokes
4 2
Correction
Factor
1/3
1
Samplinq
Time
2
minutes
per
pump
stroke
Detectinq
Limit
2
ppm
(n=4)
Colour
Chanae
Yellow
-
Red
Reaction
Principle
3CH2
:
CHCHO
+
(NH2OH)3H3PO4
-
H3PO4
H3PO4
+
Base
-
Phosphate
Coefficient
of
Variation : 10% (for 10
to
200 ppm), 5% (for 200 to 800 ppm)
**Shelf Life : Please refer
to
the
validity date printed
on
the box of tubes.
**Store
the
tubes
at
10°C
(50°F)
or
below
in a refrigerator.
CORRECTION FOR TEMPERATURE, HUMIDITY AND PRESSURE :
Temperature :
Correct
for
temperature
by
the
table
below.
Tube
True
Concentration
(ppm)
Reading
0°C
5°C
10°C 15°C
20°C 25°C
(ppm)
(32°F) (41°F) (50°F) (59°F) (68°F) (77°F)
800
--
2000
1300
800
500
600
4600
2700
1550
950
600
400
400
3600
1900 1000
600
400
270
200
1900
1100
600
320
200
160
100
550
330
200
130
100
88
50
250
130
80
60
50
43
20
60
50
40
30
20
17.5
10
25 20
16
13
10
8
Humidity :
No
correction
is
required.
Pressure :
To
correct
for
pressure,
multiply
the
tube
reading
by
Tube
Reading*
(ppm)
x
1013
(hPa)
Atmospheric
Pressure
(hPa)
*
This
value
is
after
other
correction(s),
if
applied
any.
MEASUREMENT PROCEDURE:
30°C
35°C
(86°F)
(95°F)
300
250
250
200
200
160
130
110
75
63
35
30
15
12.5
7 6
40°C
(104°F)
200
170
140
90
50
25
10
5
1.
For
checking
the
leakage
of
the
pump,
insert
a
fresh
sealed
detector
tube
into
the
pump.
Follow
instructions
provided
with
the
pump
operating
manual.
2.
Break
tips
off
a
fresh
detector
tube
with
the
tube
tip
breaker
of
the
pump.
3.
Insert
the
tube
into
the
pump
inlet
with
arrow
(
G
►
)
on
the
tube
pointing
toward
pump.
4.
Make
certain
the
pump
handle
is
all
the
way
in.
Align
the
guide mark
on
the
pump
body
with
the
guide
mark
on
the
handle.
5.
Pull
the
handle
all
the
way
out
until
it
locks
at
one
pump
stroke
(100
ml).
Wait
two
minutes
and
confirm
the
completion
of
the
sampling.
Repeat
the
above
sampling
procedure
one
more
time.
6.
For
smaller
measurements
less
than
10
ppm,
repeat
the
above
sampling
procedure
two
more
times
until
the
stain
reaches
the
first
calibration
mark.
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