BSI PD CEN/TS 12404:2015
$142.49
Durability of wood and wood-based products. Assessment of the effectiveness of a masonry fungicide to prevent growth into wood of Dry Rot Serpula lacrymans (Schumacher ex Fries) S.F. Gray. Laboratory method
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 26 |
This European prestandard specifies a method for determining the performance of a preservative, applied to the upper surface of the mortar test specimens, in preventing the growth of dry rot through the treated mortar when exposed to the tests fungus. This method is only applicable to masonry fungicides applied as a true solution of the preservative in water or as a water-borne liquid emulsion-type preservative.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | Contents Page |
| 5 | Foreword |
| 6 | Introduction |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle |
| 8 | 5 Test materials 5.1 Test fungus 5.1.1 Obligatory test fungus 5.1.2 Optional test fungi 5.1.3 Maintenance of strains 5.2 Products and reagents 5.2.1 Water, distilled or deionized, conform to grade 3 of EN ISO 3696. 5.2.2 Malt – mineral salt – agar culture medium; consisting: |
| 9 | 5.3 Apparatus 5.3.1 Culture vessels |
| 10 | Figure 1 — Example of a rack 6 Sample of the preservative |
| 11 | 7 Mortar test specimen 7.1 Preparation of mortar 7.2 Preparation of mortar test specimen |
| 13 | Figure 2 — Preparation of mortar test specimen 7.3 Curing of mortar test specimen 7.4 Leaching of mortar test specimen 7.5 Number and distribution of mortar test specimens |
| 14 | 8 Wood test specimens 8.1 Species of wood 8.2 Quality of wood 8.3 Provision of wood test specimens 8.4 Dimensions of wood test specimens 9 Procedure 9.1 Culturing the test fungus 9.2 Treatment of mortar test specimens 9.3 Preparation of wood test specimens |
| 15 | 9.4 Sterilization procedures 9.5 Exposure to fungus 9.6 Examination of the mortar test specimens |
| 16 | Figure 3 — Arrangement of the mortar test specimen and wood test specimen in the culture vessel 9.7 Validity of test |
| 17 | 10 Statement of the results 11 Test report |
| 18 | Annex A (informative) Test fungi A.1 General information on maintenance and acquisition of test strains A.2 Maintenance and treatment of test fungi |
| 19 | A.3 Information regarding obligatory test fungus A.4 Information regarding optional test fungus |
| 20 | Annex B (informative) Methods of sterilization B.1 Ionizing irradiation B.2 Epoxyethane-based sterilant B.3 Epoxypropane-based sterilant |
| 21 | B.4 Water steam |
| 22 | Annex C (informative) Example of a test report |
| 23 | Table C.1 — Results of mortar test specimens |
