This Technical Report specifies a method for determining the leaching of active ingredients or other compounds from preservative treated wood by a semi-field method for use class 3 (outdoor above ground). The preservative treated wood can be tested with or without subsequently surface coating or other water-repellent treatment. The method is applicable to the testing of commercial or experimental preservatives or paint systems applied to timber by methods appropriate to commercial practice.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 6<\/td>\n | Foreword <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | Introduction <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 1 Scope 2 Normative references 3 Description of the test method 3.1 Principle 3.2 Quality criteria 3.3 Wood preservative <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 3.4 Apparatus 3.4.1 Vessel for receiving water 3.4.2 Gutter, screws, hooks 3.4.3 Weather station 3.4.4 Wood working equipment 3.4.5 Condition chamber 3.4.6 Mixing vessel 3.4.7 Preservative treatment 3.4.8 Balance 3.4.9 Kiln 3.4.10 Safety equipment and protection clothing <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 3.4.11 Refrigerator\/Freezer 3.4.12 Chemical analysis equipment 3.4.13 Exposure site 3.4.14 Exposure weathering racks 3.5 Test specimens 3.5.1 General 3.5.2 Species of wood 3.5.3 Quality of wood and wood moisture content <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 3.5.4 Preparation of test specimens 3.5.5 Number of test specimens 3.5.6 End seal 3.6 Procedure 3.6.1 Product under test 3.6.2 Treatment and handling of test specimens <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 3.6.3 Untreated controls (optional) 3.6.4 Exposure test site 3.6.5 Duration of the test <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 3.6.6 Collection of the leachates 3.6.7 Chemical analysis 3.7 Expression of results <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 4 Test report <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Annex A (informative) Test set-up and weather rack A.1 Vertical exposure Figure A.1 – Test set-up for vertical exposure <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Figure A.2 \u2014 Vertically oriented test series Figure A.3 \u2014 Attachment of the panels for the test set-up <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | A.2 Horizontal exposure Figure A.4 \u2014 Sectional view panels exposed horizontally <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Annex B (informative) Model treatments B.1 For preservative intended for superficial treatment B.2 For preservative intended for penetration treatment <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Annex C (informative) Orientation of annual growth rings and accepted heartwood Figure C.1 \u2014 Example on the orientation of annual growth rings <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Annex D (informative) Stability study <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Durability of wood and wood-based products. Determination of emissions from preservative treated wood to the environment. Wooden commodities exposed in Use Class 3 (Not covered, not in contact with the ground). Semi-field method<\/b><\/p>\n |