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UST Program - LG 113

UST Program - LG 113

Issue Date: November 22, 1995
Revision Date: March 10, 2000
 

FCI Environmental, Inc.

Analog Hydrocarbon Probe AHP-100, Digital Hydrocarbon Probe DHP-100

OUT-OF-TANK PRODUCT DETECTOR (VAPOR-PHASE)

Detector:

Output type:

quantitative

Sampling frequency:

continuous

Operating principle:

fiber optic

 

Test Results (for tests conducted with 1000 ppm test gas):

 

 

AHP-100

unleaded gasoline

synthetic gasoline

 

xylene

 

benzene

 

2-methylbutane

Relative accuracy* (%)

12

22

2

35

N/R*

Bias (%)

-7

-2

1

-23

N/R

Precision (%)

4

15

1

11

N/R

Detection time (min)

<1

<1

<1

<1

N/R

Fall time (min)

<1

<1

<1

<1

N/R

Lower Detection Limit (ppm)

137

220

84

519

N/R

DHP-100

 

 

 

 

 

Relative accuracy* (%)

18

29

0

17

N/R

Bias (%)

1

-12

0

-9

N/R

Precision (%)

9

10

0

11

N/R

Detection time (min)

<1

<1

<1

<1

N/R

Fall time (min)

<1

<1

<1

<1

N/R

Lower Detection Limit (ppm)

73

118

45

280

N/R

* See glossary.

Test Results (for tests conducted with 10 ppm test gas):

 

AHP-100

unleaded gasoline

synthetic gasoline

 

diesel

JP-4

jet fuel

JP-8

jet fuel

 

p-xylene

kero-sene

Lower Detection Limit (ppm)

 

9.25

 

13.26

 

5.79

 

5.26

 

10.89

 

12.94

 

14.65

Specificity Results (%) (corrected for sensitivity differences):

 

AHP-100

DHP-100

 

AHP-100

DHP-100

unleaded gasoline

93

101

xylene

103

N/R

synthetic gasoline**

100

92

toluene

96

97

synthetic gasoline***

98

88

pentane

N/R

N/R

JP-4 jet fuel

105

109

methane

N/R

N/R

benzene

76

89

butane

N/R

N/R

trimethylbenzene

107

104

2-methylbutane

N/R

N/R

p-xylene

101

100

n-hexane

N/R

108

** EPA March 1990 protocol
*** Radian June 1990 protocol

Comments:
1000 ppm tests used a certified blend of concentrated gas to simulate a leak.  10 ppm test used a measured quantity of liquid product to simulate a leak.

 

FCI Environmental, Inc.

Evaluator:  Ken Wilcox Associates

1181 Grier Dr., Bldg. B

Tel:  (816) 443-2494

Las Vegas, NV 89119

Dates of Evaluation:  03/07/94, 12/05/94

Tel:  (800) 510-3627

 

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