BS EN ISO 8502-9:2020
$102.76
Preparation of steel substrates before application of paints and related products. Tests for the assessment of surface cleanliness – Field method for the conductometric determination of water-soluble salts
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 16 |
This document specifies a field method for the assessment of the surface density of various water-soluble salts on steel surfaces, before and/or after surface preparation, by conductometric determination. The individual surface densities of the salt composition like chlorides, sulphates, sodium, etc, cannot be determined by this method.
This method assesses only contaminants that forms an electrolyte (ions) when in contact with water. These represent the greater part of the contaminants.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword |
| 6 | Foreword |
| 7 | Introduction |
| 9 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle |
| 10 | 5 Apparatus and materials 5.1 Conductometer 5.2 Beaker 5.3 Equipment for sampling 5.4 Syringe 5.5 Solvent 6 Procedure 6.1 Calibration 6.2 Preparation of water and equipment blank test |
| 11 | 6.3 Sampling of salts from the steel surface 6.4 Conductometric measurement 7 Calculations 7.1 Calculation of corrected volume 7.2 Calculation of total amount of salt on the surface |
| 12 | 7.3 Examples: Standard patch A-1250 and flexible sleeve S-1000 acc. to ISO 8502‑6 |
| 13 | 8 Accuracy |
| 14 | 9 Test report |
| 15 | Bibliography |
