BS EN 252:2014
$142.49
Field test method for determining the relative protective effectiveness of a wood preservative in ground contact
| Published By | Publication Date | Number of Pages |
| BSI | 2014 | 28 |
This European Standard specifies a field test method for evaluating the effectiveness of wood preservatives in a ground contact situation. Wood treated with a reference preservative is included for comparison.
The protective effect of the test preservative is assessed in relation to the effect of a reference wood preservative applied by a specified treatment.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | Introduction |
| 8 | 1 Scope 2 Principle 3 Wood specimens 3.1 Wood species 3.2 Wood quality 3.3 Characteristics and dimension of stakes |
| 9 | 3.4 Number of Stakes 3.5 Labelling of stakes 4 Sample of wood preservative 5 Conditioning and treatment of the stakes 5.1 Conditioning 5.2 Treating process |
| 10 | 5.3 Determination of retention of wood preservative product 5.4 Range of preservative retention 5.5 Post treatment conditioning of stakes 6 Reference stakes 6.1 Reference preservative |
| 11 | 6.2 Alternative reference preservative 7 Untreated control stakes 8 Condition of the test field |
| 12 | 9 Installation of the stakes in the test field 10 Inspections |
| 13 | 11 Evaluation 11.1 General 11.2 Attack by microorganisms Table 1 — Rating system for the assessment of attack caused by microorganisms on test stakes 11.3 Attack by termites |
| 14 | Table 2 — Rating system for the assessment of attack by termites on test stakes 11.4 Simultaneous attack by microorganisms and termites 12 Duration of the test 13 Conditions for the validity of the test 14 Test report |
| 17 | Annex A (informative) Guidance for the testing of wood or wood based products that have not been treated with a wood preservative A.1 General A.2 Naturally durable wood A.3 Modified solid wood A.4 Wood panels or engineered wood products |
| 19 | Annex B (informative) Characterization of the field test site |
| 20 | Annex C (informative) Example of pattern for setting up field stakes into the ground Table C.1 — Example of a pattern for setting up field stakes into the ground at the field test site |
| 21 | Annex D (informative) Determination of strength characteristics in wood stakes through measuring Modulus of Elasticity |
| 22 | Table D.1 — Product “X”, results of bending tests after 1 year exposition of the stakes in the BAM field in Horstwalde, Germany |
| 23 | Annex E (informative) Example of a test report Table E.1 |
| 24 | Table E.2 — Results from XYZ on Scots Pine (Pinus sylvestris) after 5 years exposure in ground contact Table E.3 — Explanation of the grading system for the evaluation of microbial attack |
| 25 | Table E.4 — Results of individual ratings and type of biological attack for the reference preservative at 2.0 kg/m3 |
| 26 | Bibliography |
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