Issue Date: November 22, 1995
Revision Date: May 5, 2003

Sir Phoenix, Inc.

SIR Phoenix


Certification Leak rate of 0.1 gph with PD = 99.0% and PFA = 1%. 
"If a method meets the requirement for detecting a leak rate of 0.1 gph, it will meet the requirement for 0.2 gph.", according to "Standard Test Procedures for Evaluating Leak Detection Methods:
Statistical Inventory Reconciliation Methods", EPA/530/UST-90/007, June 1990, Section 7.2.3, page 30.
Leak Threshold 0.05 gph. 
A tank system should not be declared tight if the test result indicates a loss or gain that equals or exceeds this threshold.
Gains (water ingress) are analyzed and evaluated on an individual basis.
Applicability Gasoline, diesel. 
Tank Capacity Maximum of 18,000 gallons.
Data Requirement Minimum of 90 days of product level and flow through data are required before making the first evaluation.
Following the first evaluation, subsequent evaluations are made based on minimum of 30 days of data.
Comments Not evaluated using manifolded tank systems. 
Of 41 data sets submitted for evaluation, 5 were inconclusive. 
Median monthly throughput of tanks evaluated was 14,600 gallons. 
Leak rates of 0.05, 0.1, and 0.2 gph were evaluated. 
Data sets evaluated were supplied by vendor.


SIR Phoenix, Inc.

Evaluator:  Nathan Adams,

15995 Indian Rd.

Middle Tennessee State University

La Conner, WA 98257

Tel:  (615) 898-2644

Tel:  (360) 466-0206

Date of Evaluation:  11/05/92


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