BS EN 927-2:2014
$102.76
Paints and varnishes. Coating materials and coating systems for exterior wood – Performance specification
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 18 |
This part of EN 927 addresses performance criteria for coating systems on exterior wood. Performance requirements are specified according to three categories of end use (defined in EN 927‑1 ) in terms of two mandatory tests namely natural weathering performance testing carried out in accordance with EN 927‑3 , and water permeability in accordance with EN 927‑5 . Additional optional tests (non-mandatory) are tabled which may be used by suppliers, or for specification purposes, to provide additional information, to a standardized format, on aspects of performance relevant to specific situations. The majority of test methods are drawn from EN 927 (all parts), but where relevant additional tests from other national and international sources are used.
Requirements for claiming conformity with EN 927‑2 are defined and provide flexibility for different situations and can also provide a basis for certification.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 5 | Foreword |
| 6 | Introduction |
| 7 | 1 Scope 2 Normative references |
| 8 | 3 Terms and definitions 4 Performance tests – Testing profiles Table 1 — Test methods |
| 9 | Table 2 — Test methods in preparation 5 Test overview 5.1 Natural weathering 5.1.1 General 5.1.2 Performance criteria |
| 10 | Table 3 — Limit values for performance criteria — Natural weathering 5.1.3 Exposure conditions 5.1.4 Natural weathering – Alternative substrates 5.1.5 Natural weathering – Alternative test piece 5.2 Existing test methods 5.2.1 Water permeability Table 4 — Water absorption criteria for end-use categories |
| 11 | 5.2.2 Artificial weathering 5.2.3 Knot staining 5.2.4 Tannin staining 5.2.5 Microfoam 5.2.6 Film extensibility 5.2.7 Blocking 5.2.8 Impact test |
| 12 | 5.2.9 Fungal and algal growth 5.3 Test methods in preparation 5.3.1 Wet adhesion (parallel cross-cut test) 5.3.2 Wet adhesion (pull-off test) 5.3.3 UV transmittance 5.3.4 End grain sealing 6 Summary of test methods and reporting convention |
| 13 | Table 5 — Test method summary 7 Expression of results and claiming conformity – Scope and reporting convention |
| 14 | Table 6 — Format for claiming conformity with EN 927-2 |
| 15 | Bibliography |
