Corrosion of metals and alloys. Determination of the critical crevice temperature (CCT) for stainless steels under potentiostatic control

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

11-30-2015

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Equipment
6 Procedure
7 Assessment of results
8 Test report
Annex A (informative) - Examples of how the connections
        of the electrode can be made
Annex B (normative) - Schematic representation of different
        crevice formers used for CCT-measurements
Annex C (normative) - Calibration of specimen temperature
        vs. solution temperature if a specimen holder is used
Annex D (informative) - Potential difference of selected
        reference electrodes at 25 degrees C with respect to
        the standard hydrogen electrode (SHE)
Bibliography

Explains the procedure for determining the critical crevice temperature (CCT) for stainless steels under potentiostatic control.

This International Standard describes the procedure for determining the critical crevice temperature (CCT) for stainless steels under potentiostatic control.

The principal advantage of the test is the rapidity with which the CCT can be measured in a single test procedure. The CCT, as determined in this International Standard, can be used as a relative index of performance, for example, to compare the relative performance of different grades of stainless steel.

The test described in this International Standard is not intended to determine the temperature at which crevice corrosion will occur in service.

This method is not intended for materials with critical pitting temperature (CPT) values below 20 °C measured in accordance with ISO17864, when measured in the same test solution and at the same potential

Committee	ISENFE/8
DevelopmentNote	Supersedes 14/30263834 DC. (11/2015)
DocumentType	Standard
Pages	24
PublisherName	British Standards Institution
Status	Current
Supersedes	14/30263834 DC : 0

Standards	Relationship
ISO 18089:2015	Identical

ISO 17864:2005	Corrosion of metals and alloys — Determination of the critical pitting temperature under potientiostatic control
ISO 8044:2015	Corrosion of metals and alloys Basic terms and definitions
ASTM G 150 : 2013	Standard Test Method for Electrochemical Critical Pitting Temperature Testing of Stainless Steels
ISO 3696:1987	Water for analytical laboratory use — Specification and test methods
ISO 18070:2015	Corrosion of metals and alloys Crevice corrosion formers with disc springs for flat specimens or tubes made from stainless steel

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BS ISO 18089:2015

Current

Table of Contents

Abstract

Scope

General Product Information

International Equivalents

Standards Referencing This Book

Category

Subcategory

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