ISO 12944-6:2018
Paints and varnishes — Corrosion protection of steel structures by protective paint systems — Part 6: Laboratory performance test methods
ISO 12944-6:2018 specifies laboratory test methods and test conditions for the assessment of paint systems for the corrosion protection of carbon steel structures.
The test results are intended to be considered as an aid in the selection of suitable paint systems and not as exact information for determining durability.
ISO 12944-6:2018 covers protective paint systems designed for application to uncoated steel, hot dip galvanized steel according to ISO 1461 and steel surfaces with thermal-sprayed metallic coating according to ISO 2063‑1 and ISO 2063‑2.
ISO 12944-6:2018 does not apply to protective paint systems for electroplated or painted steel.
The environments for corrosivity categories C2 to C5 and Im1 to Im3 defined in ISO 12944‑2 are considered.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 Relationship between artificial ageing and natural exposure
4.2 Additional performance tests
5 Tests
5.1 Test panels
5.1.1 Carbon steel
5.1.2 Hot dip galvanized steel
5.1.3 Thermal-sprayed metallic coatings
5.2 Sampling of paints
5.3 Number of test panels
5.4 Paint systems
5.5 Reference system
5.6 Test procedures and duration
6 Paint system assessment
6.1 General
6.2 Assessment before artificial ageing
6.3 Assessment after artificial ageing for the specified time
7 Test report
Annex A (normative) Scribe line for ISO 9227 test and ISO 12944-9 cyclic ageing test
Annex B (normative) Cyclic ageing test
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 General
4.1 Relationship between artificial ageing and natural exposure
4.2 Additional performance tests
5 Tests
5.1 Test panels
5.1.1 Carbon steel
5.1.2 Hot dip galvanized steel
5.1.3 Thermal-sprayed metallic coatings
5.2 Sampling of paints
5.3 Number of test panels
5.4 Paint systems
5.5 Reference system
5.6 Test procedures and duration
6 Paint system assessment
6.1 General
6.2 Assessment before artificial ageing
6.3 Assessment after artificial ageing for the specified time
7 Test report
Annex A (normative) Scribe line for ISO 9227 test and ISO 12944-9 cyclic ageing test
Annex B (normative) Cyclic ageing test
Bibliography