Logo

ASTM G102-23

Current Revision

Standard Practice for Calculation of Corrosion Rates and Related Information from Electrochemical Measurements

$69.00

$69.00

$124.20

$83.00

$83.00

$149.40



Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


Stay effortlessly up-to-date with the latest standard revisions. When new versions are released, they're automatically charged and delivered to you, ensuring seamless compliance.

...

1.1 This practice covers the providing of guidance in converting the results of electrochemical measurements to rates of uniform corrosion. Calculation methods for converting corrosion current density values to either mass loss rates or average penetration rates are given for most engineering alloys. In addition, some guidelines for converting polarization resistance values to corrosion rates are provided.

1.2 The values stated in SI units are to be regarded as standard. Other units of measurement are included in this standard because of their usage.

1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


3.1 Electrochemical corrosion rate measurements often provide results in terms of electrical current. Although the conversion of these current values into mass loss rates or penetration rates is based on Faraday’s Law, the calculations can be complicated for alloys and metals with elements having multiple valence values. This practice is intended to provide guidance in calculating mass loss and penetration rates for such alloys. Some typical values of equivalent weights for a variety of metals and alloys are provided.

3.2 Electrochemical corrosion rate measurements may provide results in terms of electrical resistance. The conversion of these results to either mass loss or penetration rates requires additional electrochemical information. Some approaches for estimating this information are given.

3.3 Use of this practice will aid in producing more consistent corrosion rate data from electrochemical results. This will make results from different studies more comparable and minimize calculation errors that may occur in transforming electrochemical results to corrosion rate values.

SDO ASTM: ASTM International
Document Number G102
Publication Date Feb. 15, 2023
Language en - English
Page Count 8
Revision Level 23
Supercedes
Committee G01.11
Publish Date Document Id Type View
Feb. 15, 2023 G0102-23 Revision
Nov. 1, 2015 G0102-89R15E01 Reaffirmation
May 1, 2010 G0102-89R10 Reaffirmation
Nov. 1, 2004 G0102-89R04E01 Reaffirmation
Aug. 10, 1999 G0102-89R99 Reaffirmation