★ READ CAREFULLY THIS INSTRUCTION MANUAL AND THE INSTRUCTIONS OF THE
ASPIRATING PUMP PRIOR TO USING THIS PRODUCT.
★ DO NOT DISCARD THIS INSTRUCTION MANUAL UNTIL ALL THE TUBES IN THIS BOX ARE
USED UP.
1. PERFORMANCE:
Measuring Range
and Sampling Time
(*)Graduations on the detector tube are based on 5 pump strokes.
Number of pump strokes
Colour Change
Detectable Limit
Operating temperature
Aspirating Pump
1. DETECTOR TUBE CONTAINS REAGENTS.
2. DO NOT TOUCH THESE REAGENTS DIRECTLY ONCE TUBES ARE BROKEN.
3. KEEP THE TUBES OUT OF THE REACH OF CHILDREN.
NOTICE
1. USE ONLY PUMP MODELS AP-20, AP-20S, 400B, AP-1, AP-1S OR 400A.
OTHERWISE, CONSIDERABLE ERROR IN INDICATION MAY OCCUR.
2. BEFORE TESTING, CHECK THE ASPIRATING PUMP FOR LEAKS (REFER TO ITEM 8
INSPECTION OF ASPIRATING PUMP). ANY PUMPS SHOWING SIGNS OF LEAKAGE
SHOULD BE CORRECTED BEFORE USE.
3. DO NOT USE THIS TUBE OUTSIDE THE STATED OPERATING TEMPERATURE RANGE.
4. STORE TUBES IN A COOL AND DARK PLACE (0-25 ℃/32-77°F), AND USE BEFORE
EXPIRATION DATE PRINTED ON TOP OF THE BOX.
5. PRIOR TO USE, READ CAREFULLY ITEM 9. USER RESPONSIBILITY.
6. READ THE CONCENTRATION IMMEDIATELY AFTER MEASUREMENT.
2. SAMPLING AND MEASUREMENT:
① Break both ends of the detector tube and pretreat tube, and connect each end of the detector tube and
pretreat tube with rubber tube connector as shown in Fig.1.
CAUTION SAFETY GLASSES AND GLOVES SHOULD BE WORN TO PREVENT INJURY
FROM SPLINTERING GLASS.
② Insert the detector tube into aspirating pump securely as shown in Fig.1. (Arrow mark shall point to
the pump.)
③ Align the guide marks on the shaft and stopper of the aspirating pump.
④ Pull the pump handle at full stroke locked position and wait for 2 minutes or until the completion of
sampling is confirmed with the flow indicator of the pump (See descriptions about the flow indicator
in the instruction manual of the pump).
⑤ Turn the pump handle right or left by 1/4 (90
detector tube from the pump inlet, turn it right or left by 1/4 (90
⑥ Then, repeat the step ④ ~ ⑤ 4 times.
⑦ On completion of sampling, read the scale at the maximum point of the stained layer.
⑧ When the concentrations are below or over the scale range, multiple pump strokes can be used to
determine these lower or higher concentrations.
In case of 1 or 10 pump strokes = Reading value ×
INSTRUCTION MANUAL
BENZENE DETECTOR TUBES
1-75 ppm
:2 minutes
:1 (100mL)
: White → Greenish brown
:0.02 ppm (10 pump strokes)
:0 - 40 ℃ (32-104°F)
:Model AP-20, AP-20S, 400B, AP-1, AP-1S or 400A
CAUTION
o
), push it toward to the pump without removing the
0.2 -15 ppm(*)
10 minutes
5 (500mL)
(Temperature correction is necessary.)
Fig.1
o
).
5
Number of strokes
0.1 -7.5 ppm
20 minutes
10 (1000mL)
No.118SD
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