Gastec Tubes and Sampling Pump
Short terms quick measuring detector tubes 
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Gas sampling pump kit and accessories
 
 
 
Index of target gases/substances : S
Gas or Vapour
to be Measured
Chemical Formula
Gastec Tube
No. & Name
Measuring
Range
(ppm)
No.of
Pump
Strokes
Shelf
Life
(year)
Note TLV-
TWA,C
(ACGIH)
(ppm)
Stoddardsolvent 128 Stoddardsolvent 50-8000
mg/m3
1 3 - 100
Styrene
C6H5CH:CH2
124 Styrene 500-1500 1/2 3 - 20
20-500 1
10-20 2
124L Styrene 25-100 1 3 -
2-25 4
153 Methyl isobutyl ketone 0.075-0.9% 1 3 T
Sulphur dioxide
SO2
5H Sulphur dioxide 4-8% 1/2 3 - 2
0.5-4% 1
0.05-0.5% 2-10
5M Sulphur dioxide 1800-3600 1/2 3 T
100-1800 1
20-100 4
5L Sulphur dioxide 100-200 1/2 3 -
5-100 1
2.5-5 2
1.25-2.5 4
5La Sulphur dioxide 30-60 1 3 -
2-30 2
1-2 4
0.5-1 8
5LC Sulphur dioxide 10-25 1 3 T
0.25-10 2
0.1-0.25 4
5Lb Sulphur dioxide 5-10 1 3 -
0.2-5 2
0.1-0.2 4
0.05-0.1 8
45S Hydrogen sulphide
 ,sulphur dioxide
10-20 1/2 3 +
0.5-10 1
0.25-0.5 2
80 Acid gases 1.5-30 2 2 -
Sulphuric aicd 35 sulphuric acid 0.5-5mg/m3 10 2 - -
T:Temp Correction H:Humidity Correction *:Refrigerator Store Mesh:Correction Factor/Chart
 
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