# Commission Implementing Decision (EU) 2020/2009 of 22 June 2020 establishing the best available techniques (BAT) conclusions, under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions, for surface treatment using organic solvents including preservation of wood and wood products with chemicals (notified under document C(2020) 4050) (Text with EEA relevance), Division BAT 27: In order to reduce total emissions of VOCs and energy consumption, BAT is to use technique (a) and one or a combination of the techniques (b) to (d) given below.

Extent: E+W+S+N.I.

Technique
Description
Applicability
(a)
Process-integrated VOC oxidation
The air/solvent mix resulting from solvent evaporation during the repeated enamel curing process is treated in a catalytic oxidiser (see BAT 15 (g)) integrated in the curing oven/dryer. The waste heat from the catalytic oxidiser is used in the drying process to heat up the circulating airflow and/or as process heat for other purposes within the plant.
Generally applicable.
(b)
Solvent-free lubricants
Solvent-free lubricants are applied as follows:
the wire is drawn through a lubricant-wetted felt; or
a lubricant-impregnated filament is run with the wire and the paraffin wax melts due to the residual heat of the wire and the frictional heat.
Applicability may be limited due to product quality requirements or specifications, e.g. diameter.
(c)
Self-lubricating coatings
A solvent-containing lubrication step is avoided by using a coating system that also contains lubricant (a special wax).
Applicability may be limited due to product quality requirements or specifications.
(d)
High-solids enamel coating
Use of enamel coating with a solids content of up to 45 %. In the case of fine wires (with a diameter less than or equal to 0.1 mm), the solids content is up to 30 %.
Table 20
BAT-associated emission level (BAT-AEL) for total emissions of VOCs from the manufacture of winding wire
Parameter
Product type
Unit
BAT-AEL(Yearly average)
Total VOC emissions as calculated by the solvent mass balance
Coating of winding wire with an average diameter greater than 0,1 mm
g VOCs per kg of coated wire
1–3,3
The associated monitoring is given in BAT 10.
Table 21
BAT-associated emission level (BAT-AEL) for VOC emissions in waste gases from the manufacture of winding wire
Parameter
Unit
BAT-AEL(Daily average or average over the sampling period)
TVOC
mg C/Nm3
5–40
The associated monitoring is given in BAT 11.

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Source: https://www.legislation.gov.uk/eudn/2020/2009/annex/division/1/division/1.9/division/BAT (the official version)
Page: https://openlegislation.uk/eu-decision-2020-2009/annex/division-1/division-1.9/division-BAT
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.