3. CORRATERs ystems measurec orrosion rate virtually instantaneously. CORROSOMETER systemsm easure metall osss ot hat
corrosionr atem ustb ed eterminedo veraperiod of time,u sually
afew hourstoafewdays.
4. CORRATER systemss upplyp ittingt endency information; CORROSOMETERsystems do notatthistime.
11.3 Applications SuitedtoCORRATER (LPR) and
CORROSOMETER(ER)T echniques
Because of their intrinsic properties, CORRATER and CORROSOMETER
systems are generally used in different applications. Occasionally,b oth are
used to obtain complementaryi nformation; however, application requirements will usually dictate the choice of one or the other.
The following are the principal uses of and applications for CORRATER
products:
1. Control of inhibitor addition in water systems
a. For control of injection to minimize corrosion rises
b. Evaluated ifferent inhibitors and optimize their effectiveness
over time
2. Evaluation and prescreening of inhibitors in the laboratory before
field trials
3. Cooling towers—to optimize inhibition control, detect process
leakage or oxygen activity andm icrobiologically-induced
corrosioneffects on the alloyso fconstruction
4. Oil fieldwaterfloods—to protect the injection equipment, particularly from oxygen ingress
5. Oil field drilling mud—to control inhibitor additions
6. Geothermal systems—to monitor the condition of produced brine
and changes occurring before reinjection
7. Desalination systems—to monitor water quality
8. Processw aters, scrubbers—to detect particularlyc orrosive
contaminants
9. Evaluation of variousa lloyst os olve material selection options,
particularly in pilotorf ull-scale plantenvironments
10. Potable water systems—to test effectiveness of inhibitors and
corrosiveness of biocides
The CORROSOMETER has much broader application and can be used in
any medium,s pecifically
Corrosion of Linings and Coatings
546
CAT8247—CHAPTER 11—6/10/2006—12:56—SRIDHAR—XML MODEL B–pp. 533–547
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