NEN - NVN-ENV 1250-1
Wood preservatives - Methods formeasuring losses of active ingredients and other preservative ingredients from treated timber - Part 1: Laboratory method for obtaining samples for analysis to measure losses by evaporation to air
| Organization: | NEN |
| Publication Date: | 1 January 1995 |
| Status: | active |
| Page Count: | 20 |
| ICS Code (Wood-protecting chemicals): | 71.100.50 |
scope:
It is not intended that the results of analysis be used to make absolute judgements of losses of wood preservative ingredients from treated timber in service since the results cannot be related to in-service exposure conditions of wooden components. The methodology is therefore of interest, for example, as part of the development of preservatives. The results are relevant the preservative only, not to a combination of preservative and method of application. EN 73 describes another method involving evaporative ageing of treated timber but is not related to this part of ENV 1250. EN 73 is used solely as an accelerated ageing procedure prior to biological testing for efficacy assessment.
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