Standard
EN 350 — Performance-based durability and modified wood
Clause 4 / Annex C. Allows durability of modified or treated wood to be expressed as a performance class derived from test data (EN 113, CEN/TS 15083) rather than species tables. Acetylated and thermally modified timber are assessed on measured mass-loss and moisture-exclusion performance, not on the untreated species class.
The diagram below shows every direct connection this node has in the graph. Each line is one edge; expand a neighbour group below to read exactly why that connection exists and which standard or dataset it comes from.
Treatment (2)
- Thermal modification← specified under
Classification and declaration requirements for this treatment sit in EN350-PERF.
Source: en350-perf
- Acetylation← specified under
Classification and declaration requirements for this treatment sit in EN350-PERF.
Source: en350-perf
How edges in this graph are derivedWI-GRAPH v1.0.0
Species → agent edges come from the WI-SL resistance profile (0–100 ordinal scale derived from EN 350 durability class, extractive chemistry and movement). ≥70 is read as "resists well", 45–69 as "moderately resists", below 45 as "is vulnerable to".
Climate → agent edges fire when a climate's driver value (UV, humidity, salt or freeze-thaw load) is 60 or above, read directly from the climate dataset.
Treatment → agent / standard edges come from the paraphrased standards corpus used across the site (EN 927-1, EN 351-1, EN 350 clause 4, EN 13501-1).
Species → standard edges reuse the exact source list already published for each Global WoodIntel Score sub-score.
Machine-readable: GET /api/public/v1/graph?node=standard-en350-perf · CC BY 4.0