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UST Program - LG 113

Issue Date: April 18, 1997
Revision Date: May 18, 2015

EBW, Inc.

AUTO-STIK Discriminating Sensors
LS-5, LS-10, LS-15, LS-20, LS-35

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

As of April 1, 2009, Franklin Fueling systems no longer manufactures this method.

Detector:

Output type	qualitative
Sampling frequency	continuous
Operating principle	product permeability

Test Results:
*California requires annual certification of all leak detection equipment. The certification of discriminating sensors should include functional testing of both water and product detection capabilities.

Model LS-5, LS-35, LS-10, LS-15, and LS-20: Currently the SWRCB UST Program staff discourages the use of polymer strip discriminating sensors at new installations in California. This is due to concerns about the impact that repeated/prolonged exposure to hydrocarbons may have on the sensor's ability to alarm and recover from alarm reliably. Since current evaluation protocols do not address this issue, no new polymer strip sensors should be installed until new evaluation protocols are in place.

	unleaded gasoline	diesel	water
LS-5, LS-35 (polymer strips)
Detection time (min)	~7	~60	N/A*
Fall time (sec)	N/A	N/A	N/A
Lower detection limit (cm)	<0.014	<0.014	N/A
LS-10, LS-15, LS-20 (polymer strips)
Detection time (min)	~7	~60	N/A*
Fall time (sec)	N/A	N/A	N/A
Lower detection limit (in)	<0.014	<0.014	N/A

*See glossary.

Specificity Results:
Manufacturer and evaluator claim sensors will respond to any liquid, except water.

Manufacturer's specifications:
Operating temperature: -20 degrees F to 150 degrees F(-28.9 degrees C to 65.5 degrees C).
There is no manufacturer's recommended maintenance schedule.

Comments:
Sensors can be reset by exposing them to air.
Sensors are reusable.

EBW, Inc.	Evaluator: Ken Wilcox Associates
3760 Marsh Road	Tel: (816) 443-2494
Madison, WI 53718	Date of Evaluation: 07/05/94
Tel: (800) 225-9787
E-mail: info@franklinfueling.com
URL: www.ebw.com

Appearance on this list is not to be construed as an endorsement by any regulatory agency nor is it any guarantee of the performance of the method or equipment.
Equipment should be installed and operated in accordance with all applicable laws and regulations.
For full details, please refer to our expanded "DISCLAIMER" page.