Trvanlivost dřeva a materiálů na bázi dřeva - Rostlé dřevo ošetřené ochrannými prostředky - Část 2: Návod na odběr vzorků pro analýzu dřeva ošetřeného ochrannými prostředky (Norma k přímému použití jako ČSN).
NORMA vydaná dňa 1.10.2023
Designation standards: ČSN EN 351-2
Classification mark: 490674
Catalog number: 517578
Publication date standards: 1.10.2023
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Czech technical standard
Kategória: Technické normy ČSN
This part of the EN 351 series gives guidance for the general procedures to be used in obtaining samples of preservative-treated wood for the determination of penetration and retention of wood preservative. It also gives guidance on the measurement of penetration and retention of a wood preservative in the treated wood.
This part of the EN 351 series is applicable to the production of preservative-treated solid wood, including glued laminated timber, suitable for use in those service conditions defined within the use classes in EN 335.
NOTE - Glued laminated timber is not suitable for use in fresh or sea water.
This part of the EN 351 series is not applicable to preservative-treated wood in service. However, the sampling guidance provided within this part of the EN 351 series can be applied for the subsequent examination of treated wood in service.
Annex A (informative) provides a selection of number of sample units.
Annex B (informative) provides examples of retention measurements