This document specifies a laboratory test method for determining the biocidal or biostatic efficacy of single active substances or combinations thereof used in film preservatives of coatings against fungal growth. This document does not apply to coatings unsusceptible to fungal growth. The test method covers only active substances for film preservation. It does not indicate the efficacy of the coating film to protect itself or an underlying material. The test method is applicable for active substances used for the protection of wood and masonry coatings. It is not applicable to marine coatings. Safety, health and environmental aspects are not in the scope of this document. Determination of the performance of film preservatives in coatings by applying ageing procedures is not within the scope of this document.<\/p>\n
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| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | European foreword <\/td>\n<\/tr>\n | ||||||
| 6<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 4 Principle 5 Apparatus and materials 5.2 Autoclave. 5.9 Microscope. 5.12 Device for applying the coating. 5.14 Sterile Drigalski spatula or disposable spreader. 5.15 Sterile platinum loop or disposable loops. 5.16 Sterile glass funnel with cotton wool or rockwool. <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 5.18 Sterile tweezers. 5.19 Sterile water. 5.20 Malt extract agar. 6 Fungi 6.1 Fungi more likely to grow in an exterior environment 6.2 Fungi more likely to grow in an interior environment 7 Sampling and preparation of test samples and of test specimens 7.1 Sampling 7.2 Preparation of test samples (see Annex A) <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 7.3 Conditioning of the test samples 7.4 Preparation and number of test specimens 8 Procedure 8.1 Preparation of the Petri dishes with the culture medium 8.2 Preparation of stock cultures and sub-cultures 8.3 Preparation of the spore suspension 8.4 Inoculation and incubation (see Annex A) <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 8.5 Assessment 9 Test report <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Annex A (informative) Laboratory method for testing the efficacy of film preservatives in a coating against fungi <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Annex B (informative) Designation of the percentage area of disfigurements according to EN 16492:2014, Table A.3 <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Paints and varnishes. Laboratory method for testing the efficacy of film preservatives in a coating against fungi<\/b><\/p>\n |