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Issue Date: November 22, 1995
Revision Date: August 23, 1999
Linde Services Inc.
(originally listed as Tracer Research Corp.)
Tracer
Tight
OUT-OF-TANK PRODUCT DETECTOR (VAPOR-PHASE)
Detector:
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Output
type: |
quantitative |
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Sampling
frequency: |
intermittent |
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Operating
principle: |
chromatographic
(looks for chemical tracer) |
Test
Results:
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|
xylene |
benzene |
2-methylbutane
|
unleaded
gasoline
|
chemical
tracers
|
|
Hydrocarbon
Detector (GC/FID)
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Accuracy (%)
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<20
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<20
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<20
|
<20
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N/R*
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Bias (%)
|
0
|
0
|
0
|
0
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N/R
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Detection time (sec)
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<1
|
<1
|
<1
|
<1
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N/R
|
|
Fall time (sec)
|
<1
|
<1
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<1
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<1
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N/R
|
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Lower detection limit (ppm)
|
20
|
20
|
20
|
20
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N/R
|
|
Tracer
Detector
|
|
|
|
|
|
|
Accuracy (%)
|
N/R
|
N/R
|
N/R
|
N/R
|
<20
|
|
Bias (%)
|
N/R
|
N/R
|
N/R
|
N/R
|
0
|
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Detection time (sec)
|
N/R
|
N/R
|
N/R
|
N/R
|
<1
|
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Fall time (sec)
|
N/R
|
N/R
|
N/R
|
N/R
|
<1
|
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Lower detection limit (ppm)
|
N/R
|
N/R
|
N/R
|
N/R
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10-5
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*
See glossary.
Manufacturer’s
specifications:
Soil permeability at the site
must exceed 1 Darcy.
Comments:
System utilizes a chromatographic
measurement of a vapor sample collected monthly from the site.
Hydrocarbon vapors and the added chemical tracer can be measured
independently.
During evaluations, the tracer chemical was declared 159 out of 161
trials.
System evaluation included detectors, analytical procedures,
sample containers, sampling procedures, sampling system, monitoring well
materials and installations, and tracer mobility.
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Linde Services Inc.
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Evaluator: Control Strategies Engineering (out of business)
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3755 N. Business Center Dr.
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Tel: Contact Linde Services Inc.
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Tucson,
AZ 85705
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Date
of Evaluation: 05/05/92
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Tel:
(800) 394-9929
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URL: http://www.lindeus.com/
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