Sample Report - Corrosion Monitoring
The goal of every ECI advanced corrosion
monitoring investigation is to thoroughly answer the question(s) which first
prompted the inquiry, and to provide a clear assessment of pipe corrosion
activity and remaining service life. Due to the critical role of most HVAC
piping systems in day to day mechanical operations, many operators of older
building properties have the interest to identify their current corrosion
status. For others, it is a leak, of some other evidence of a corrosion
condition, which prompts special investigation.
Each report provides a full explanation
of the testing procedure - including basic theory, background information,
unknowns, calculations, assumptions, and other informative details. A summary
section is offered in order to present our baseline findings, and typically
includes average and minimum calculations for corrosion rates, wall loss,
percent of allowable loss, and retirement dates, etc. In addition, that
information is also incorporated into an executive summary section, and a final
conclusions and recommendations narrative.
Within the entire report, the detail
sheet for each fixed point monitoring location holds the most valuable
information. This front and back detail page provides all data and statistical
calculations associated with our investigation in a compact, well organized,
and understandable format.
The data generated from such detailed
testing provides a full range of corrosion rate and retirement date information
for the following parameters:
- Wall Thickness
- Remaining Pipe Life
- Corrosion Rate
- Percentage Of Allowable Loss
- Remaining Pipe Life
- Retirement Date
- Overall Pipe Condition
A sample copy of a typical detail page is
represented below. Due to the limitations of reproducing an accurate copy of
the actual 8-1/2 x 11 landscape oriented page within this frame, we have broken
out the page for an expanded view. Simply move the mouse over any area and
click to view it in greater detail. Click the expanded image to return to this
page.
Our standard two page evaluation of pipe
corrosion activity and remaining service life is updated at each monitoring
interval, and provides historical corrosion trend information for each test
location. The first page, illustrated below, provides complete detail of the
piping area tested, and of all relevant operating and physical characteristics.
The measurement of the 12 individual test locations is provided in thousandths
of an inch, and compares current and prior wall thickness and corrosion rate
information.
A block graph illustrates original pipe
wall thickness against minimum acceptable wall thickness, and offers a quick
assessment of current wall thickness measurements against those values. A
comments section provides further detail and recommendations based upon our
findings.
Page two of our advanced corrosion report
charts the current and previous wall thickness and corrosion rate data in order
to provide an historical view of the pipe condition. In addition, all 12
thickness values and their corresponding corrosion rates are graphed to produce
a continuing corrosion trend analysis. As new test data is produced, it is
moved to the forward position and the older data moved to the back.
The testing and reporting detail shown
above is provided for each and every test location; separated into individual
report sections. A photograph of the actual test location is also provided for
reference, and any other observed problems such as rust, leakage or insulation
discoloration, etc. is documented and commented upon in the addendum to the
report.
A summary section of the various results
for all fixed point monitoring locations is then presented in order to
illustrate the various corrosion trends which may exist. In comparing common
piping systems, such corrosion rate information often becomes a valuable
diagnostic tool. Separate graphs combine the relative information for each test
location, providing comparison for:
- Average Wall Thickness
- Minimum Wall Thickness
- Average Corrosion Rate
- Maximum Corrosion Rate
- Average Pipe Loss
- Maximum Pipe Loss
- Average Pipe Life Remaining
- Minimum Pipe Life Remaining
- Average Pitting Index
A sample copy of a typical summary page
is represented below. Again, due to the limitations of reproducing an accurate
copy of the actual 8-1/2 x 11 landscape oriented page within this frame, we
have broken out the page for an expanded view. Simply move the mouse over any
area and click to view it in greater detail.
Page two of the summary page provides
additional corrosion rates and estimated retirement detail, along with a final
set of comments.
Overall, our advanced corrosion
monitoring program offers a tremendous amount of information and value. It is
the ultimate corrosion coupon, providing the most reliable and accurate
information relating to actual pipe wall loss. Whether responding to a
suspected corrosion problem or just fulfilling a preventative interest to know
current piping conditions - East Coast Industries, Inc. can provide the
answers.
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