# 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 9: In order to reduce VOC emissions from cleaning processes, BAT is to minimise the use of solvent-based cleaning agents and to use a combination of the techniques given below.

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

Technique
Description
Applicability
(a)
Protection of spraying areas and equipment
Application areas and equipment (e.g. spray booth walls and robots) susceptible to overspray and drips, etc. are covered with fabric covers or disposable foils where foils are not subject to tearing or wear.
The selection of cleaning techniques may be restricted by the type of process, the substrate or equipment to be cleaned and the type of contamination.
(b)
Solids removal prior to complete cleaning
Solids are removed in a (dry) concentrated form, usually by hand, with or without the aid of small amounts of cleaning solvent. This reduces the amount of material to be removed by solvent and/or water in subsequent cleaning stages, and therefore the amount of solvent and/or water used.
(c)
Manual cleaning with pre-impregnated wipes
Wipes pre-impregnated with cleaning agents are used for manual cleaning. Cleaning agents may be solvent-based, low-volatility solvents or solvent-free.
(d)
Use of low-volatility cleaning agents
Application of low-volatility solvents as cleaning agents, for manual or automated cleaning, with high cleaning power.
(e)
Water-based cleaning
Water-based detergents or water-miscible solvents such as alcohols or glycols are used for cleaning.
(f)
Enclosed washing machines
Automatic batch cleaning/degreasing of press/machine parts in enclosed washing machines. This can be done using either:
(a) organic solvents (with air extraction followed by VOC abatement and/or recovery of the used solvents) (see BAT 15); or
(b) VOC-free solvents; or
(c) alkaline cleaners (with external or internal waste water treatment).
(g)
Purging with solvent recovery
Collection, storage and, if possible, reuse of the solvents used to purge the guns/applicators and lines between colour changes.
(h)
Cleaning with high-pressure water spray
High-pressure water spray and sodium bicarbonate systems or similar are used for automatic batch cleaning of press/machine parts.
(i)
Ultrasonic cleaning
Cleaning in a liquid using high-frequency vibrations to loosen the adhered contamination.
(j)
Dry ice (CO2) cleaning
Cleaning of machinery parts and metallic or plastic substrates by blasting with CO2 chips or snow.
(k)
Plastic shot-blast cleaning
Excess paint build-up is removed from panel jigs and body carriers by shot-blasting with plastic particles.

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Source: https://www.legislation.gov.uk/eudn/2020/2009/annex/division/1/division/1.1/division/1.1.8/division/BAT (the official version)
Page: https://openlegislation.uk/eu-decision-2020-2009/annex/division-1/division-1.1/division-1.1.8/division-BAT
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.