BS EN 927-5:2023 – TC
$134.27
Tracked Changes. Paints and varnishes. Coating materials and coating systems for exterior wood – Assessment of the liquid water permeability
| Published By | Publication Date | Number of Pages |
| BSI | 2023 | 48 |
This document specifies a test method for assessing the liquid water permeability of coating systems for exterior wood.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 28 | undefined |
| 33 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle |
| 34 | 5 Test panels 5.1 Wood |
| 35 | 5.2 Preparation and selection of test panels 5.3 Preparation of coated and sealed panels 5.3.1 Wood conditioning 5.3.2 Panel selection |
| 37 | 5.3.3 Coating application 5.3.4 Sealing and conditioning |
| 38 | 5.3.5 Dry film thickness 6 Apparatus 7 Procedure 7.1 Pre-conditioning |
| 39 | 7.2 Absorption cycle 7.3 Optional testing of weathered panels 8 Calculation and expression of results 9 Precision 9.1 Repeatability (r) 9.2 Reproducibility (R) |
| 40 | 10 Test report |
| 41 | Annex A (informative)Interpretation of test results and further calculation |
| 42 | Annex B (informative)Suggested form for specifying application parameters B.1 General B.2 Specifying complete coating system B.3 Equipment B.4 Process B.5 Spreading rate |
| 43 | B.6 Flash-off B.7 Drying and curing B.8 Overcoating intervals B.9 Sanding |
