BS ISO 21746:2019
$142.49
Composites and metal assemblies. Galvanic corrosion tests of carbon fibre reinforced plastics (CFRPs) related bonded or fastened structures in artificial atmospheres. Salt spray tests
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 28 |
This document specifies the apparatus, the reagents and the procedure to be used in conducting the neutral salt spray (NSS), acetic acid salt spray (AASS) and copper-accelerated acetic acid salt spray (CASS) tests for assessment of the galvanic corrosion resistance of joints and bonded structures between carbon fibre reinforced plastics (CFRPs) and metallic materials, with or without permanent or temporary insulation for the galvanic current.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions |
| 10 | 4 Test solutions 4.1 Preparation of the sodium chloride solution |
| 11 | 4.2 pH adjustment 4.2.1 pH of the salt solution 4.2.2 Neutral salt spray test (NSS) 4.2.3 Acetic acid salt spray test (AASS) 4.2.4 Copper-accelerated acetic acid salt spray test (CASS) 4.3 Filtration |
| 12 | 5 Apparatus |
| 13 | 6 Method for evaluating cabinet corrosivity 6.1 General 6.2 Reference specimens |
| 14 | 6.3 Arrangement of the reference specimens 6.4 Duration of tests 6.5 Determination of mass loss (mass per area) 6.6 Satisfactory performance of cabinet |
| 15 | 7 Test specimens 8 Arrangement of the test specimens |
| 16 | 9 Operating conditions 10 Duration of tests |
| 17 | 11 Treatment of specimens after test 11.1 General 11.2 Non-organic coated specimens: metallic and/or inorganic coated 11.3 Organic coated specimens 11.3.1 Scribed organic coated specimens 11.3.2 Organic coated but not scribed specimens 12 Evaluation of results |
| 18 | 13 Test report |
| 19 | Annex A (informative) Example schematic diagram of one possible design of spray cabinet for galvanic corrosion test with means for optional treating fog exhaust and drain |
| 21 | Annex B (informative) Complementary method for evaluating galvanic corrosion test cabinet corrosivity using zinc reference specimens |
| 23 | Annex C (normative) Preparation of galvanic corrosion test panels with organic coatings |
| 24 | Annex D (normative) Required supplementary information for testing galvanic corrosion test panels with organic coatings |
| 25 | Annex E (informative) Recommended specimen geometries — Salt spray tests to metal and CFRP assemblies |
| 27 | Bibliography |
