Calculation of wood treatment

Class of wood exploitation according to EN 335-2013: 1
Wood applications: Internal construction and finishing lumber, not to be humidified.
Structures to be treated:
Wooden elements of internal constructions of structures: girders, beams, thin boards for siding, struts, bed timbers, supports, wall plates, eaves and planed board, balks, fillets, linings, and block-houses. Wooden containers for equipment, materials and products stored in unheated warehouses, as well as transported (in conditions that exclude contact with moisture).
Wood lifetime: 40–60 years
Min. concentration of solution,%: 1.5-3.0
Estimated rate of consumption of solution / concentrate l/m² (kg/m³): 100-120 (1.5-3.5)

Class of wood exploitation according to EN 335-2013: 2
Wood applications: Internal constructing and finishing lumber, exposed to moisture and damage to insects by wood-fretters.
Structures to be treated:
Wooden elements of internal constructions of structures: girders, beams, thin boards for siding, struts, bed timbers, supports, wall plates, eaves and planed board, balks, fillets, linings, and block-houses. Wooden containers for equipment, materials and products stored in unheated warehouses, as well as transported (in conditions that exclude contact with moisture).
Wood lifetime: 20–30 years
Min. concentration of solution,%: 1.5-3.0
Estimated rate of consumption of solution / concentrate l/m² (kg/m³): 100-120 (1.5-3.5)

Class of wood exploitation according to EN 335-2013: 3
Wood applications: Construction and finishing lumber, exposed to moisture and precipitation, not in contact with soil, moisture and damage.
Structures to be treated:
Wooden elements of internal structures of buildings. Wooden parts of bodies of vehicles. Covering of offset, plancers, and fascia. Elements of fences, garden furniture. Wood tile.
Wood lifetime: 15 years
Min. concentration of solution,%: 2.0–3.5
Estimated rate of consumption of solution / concentrate l/m² (kg/m³): 150–250 (2.5–6.0)

Class of wood exploitation according to EN 335-2013: 4
Wood applications: Lumber, exposed to moisture and precipitation or fresh water, in contact with the soil.
Structures to be treated:
Piles, wooden supports of transmission lines, fence and road poles, sleepers, transfer bars, underground rim board; bridge floorings. Wooden constructions of onshore structures, floating means, cribs of river bridges, wooden parts of containers; parts of wooden-earth structures; parts of cattle-breeding buildings, mine stands, wooden roofs, grape columns.
Wood lifetime: 15–20 years
Min. concentration of solution,%: 3.5–5.0
Estimated rate of consumption of solution / concentrate l/m² (kg/m³): 200–250 (6.0–10.0)