DIN EN 599-1-2009 木材和木制品的耐用性.根据生物试验确定的木材预防性保存效率.第1部分:符合使用类别的规范,德文版本 EN 599-1:2009
Durability of wood and wood-based products - Efficacy of preventive wood preservatives as determined by biological tests - Part 1: Specification according to use class; English version of DIN EN 599-1:2009-10
This part of EN 599 specifies for each of the five use classes defined in EN 335-1, the biological tests required
for evaluating the efficacy of wood preservatives for the preventive treatment of solid timber, together with the
minimum ageing tests required for the respective use class. It provides the method for calculating the critical
value of a preservative. The critical value is the value that shall be used to calculate the recommended
retention of the preservative appropriate for specific service conditions. The critical value is not necessarily the
recommended retention or the minimum retention level for the preservative. The wide range of hazards,
exposure conditions and service life requirements across Europe make it necessary to allow for local
considerations in the calculation of the required preservative retention; EN 351-1 provides for the critical value
to be adjusted to take account of these factors.
This part of EN 599 is applicable to all wood preservative products supplied for application in liquid form for
the preventive treatment of timbers (structural and non-structural) against wood-attacking fungi, wood-
attacking insects and marine borers as described in EN 335-1. However, it is applicable to products for
preventive treatments against fungi causing disfigurement (blue stain) of wood in service if this forms part of
the overall preventive efficacy of the product.
This part of EN 599 does not necessarily take into account all the factors which may affect the stability of
active ingredients in preservative treated wood. These factors include ultra-violet light and microbiological
agencies capable of degrading components of the preservative. Such factors are an integral part of exposure
in field trials but are subject to natural variation and their impact is not directly assessed in the field trial
methods included in this standard. Methods are in development to assess the impact of these factors but are
not finalised and cannot be included in this revision of this part of EN 599. Because such factors could, in
service, significantly affect the active ingredient's suitability for its intended purpose, the manufacturer/
producer is expected to ensure and be able to provide evidence that its stability, at the recommended
retention of the preservative product, has been adequately assessed.
This part of EN 599 is not applicable to wood preservative products supplied for application as pastes, solids
or in capsule or gaseous form because these cannot be tested without modification of the biological tests cited
in this standard. It does not apply either to wood preservative products for remedial (curative) treatments, to
those applied to prevent fungi causing sap stain on green (unseasoned) timber or to those applied solely to
prevent fungi causing disfigurement (blue stain) of wood in service.
NOTE 1 The nature of the laboratory and field tests required in this part of EN 599 to demonstrate efficacy of a wood
preservative are such that the time required generating the data is many months or years, depending upon the properties
of the wood preservative and the use class in which the treated wood is to be exposed.
For preservative products which have already been placed on the market without significant formulation variation (see
Annex A) before the end of 1990 and which can demonstrate a record of having been used lawfulty and successfully in
accordance with local technical traditions during this period, national standards bodies or independent authorities
nominated by them, may declare critical values for use within their territories.
NOTE 2 For re-testing after making variations in product formulation, guidance is given in Annex A.