ASTM-G96 1996

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G96-90(1996)E1 Standard Guide for On-Line Monitoring of Corrosion in Plant Equipment (Electrical and Electrochemical Methods)

Published By	Publication Date	Number of Pages
ASTM	1996	10

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Category: ASTM

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Description

ASTM G96-90-E1-Reapproved1996

Historical Standard: Standard Guide for On-Line Monitoring of Corrosion in Plant Equipment (Electrical and Electrochemical Methods)

ASTM G96

Scope

1.1 This guide outlines the procedure for conducting on-line corrosion monitoring of metals in plant equipment under operating conditions by the use of electrical or electrochemical methods. Within the limitations described, these test methods can be used to determine cumulative metal loss or instantaneous corrosion rate, intermittently or on a continuous basis, without removal of the monitoring probes from the plant.

1.2 The following test methods are included: Test Method A for electrical resistance, and Test Method B for polarization resistance.

1.2.1 Test Method A provides information on cumulative metal loss, and corrosion rate is inferred. This test method responds to the remaining metal thickness except as described in Section 5.

1.2.2 Method B is based on electrochemical measurements for determination of instantaneous corrosion rate but may require calibration with other techniques to obtain true corrosion rates. Its primary value is the rapid detection of changes in the corrosion rate that may be indicative of undesirable changes in the process environment.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in 5.6.

Keywords

corrosion monitoring in plant equipment; electrical resistance method of corrosion measurement; on-line corrosion monitoring; polarization resistance method of corrosion measurement

ICS Code

ICS Number Code n/a

DOI: 10.1520/G0096-90R96E01

Additional information

Standard Title	G96-90(1996)E1 Standard Guide for On-Line Monitoring of Corrosion in Plant Equipment (Electrical and Electrochemical Methods)
Published Code	ASTM
Publication Date	1996
Pages Count	10