Issue Date: November 22, 1995
Revision Date: August 23, 1999
Linde Services, Inc.
(formerly Praxair Services, Inc., originally listed as Tracer Research Corp.)
Tracer Tight
Out-Of-Tank Product Detector (Vapor-Phase)
Detector
| Output Type | Quantitative |
|---|---|
| Sampling Frequency | Intermittent |
| Operating Principle | Chromatographic (looks for chemical tracer) |
Test Results
*California regulations require vadose zone vapor monitoring to be continuous. This sensor does not meet the criteria.
| Xylene | Benzene | 2-methylbutane | Unleaded gasoline | Chemical tracers | |
|---|---|---|---|---|---|
| Hydrocarbon Detector (GC/FID) | |||||
| Accuracy (%) | <20 | <20 | <20 | <20 | N/R* |
| Bias (%) | 0 | 0 | 0 | 0 | N/R |
| Detection time (sec) | <1 | <1 | <1 | <1 | N/R |
| Fall time (sec) | <1 | <1 | <1 | <1 | N/R |
| Lower detection limit (ppm) | 20 | 20 | 20 | 20 | N/R |
| Tracer Detector | |||||
| Accuracy (%) | N/R | N/R | N/R | N/R | <20 |
| Bias (%) | N/R | N/R | N/R | N/R | 00 |
| Detection time (sec) | N/R | N/R | N/R | N/R | <1 |
| Fall time (sec) | N/R | N/R | N/R | N/R | <1 |
| Lower detection limit (ppm) | N/R | N/R | N/R | N/R | 10-5 |
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.
- Linde Services, Inc.
3755 N. Business Center Dr.
Tucson, AZ 85705
Tel: (844) 445-4633
E-mail: contactus@linde.com
URL: www.lindeus.com/what-we-offer/linde-services-inc
- Control Strategies Engineering - out of business
Tel: Contact Linde Services, Inc.
Date of Evaluation: 05/92
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