# Commission Implementing Decision of 28 February 2012 establishing the best available techniques (BAT) conclusions under Directive 2010/75/EU of the European Parliament and of the Council on industrial emissions for the manufacture of glass (notified under document C(2012) 865) (Text with EEA relevance) (2012/134/EU), Division 50

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

When nitrates are used in the batch formulation, BAT is to reduce NOX emissions by minimising the use of these raw materials, in combination with either primary or secondary techniques
A description of the technique is given in Section 1.10.2.
Technique
Applicability
Primary techniques
minimising the use of nitrates in the batch formulation
The use of nitrates is applied for very high quality products, where special characteristics of the glass are required. Effective alternative materials are sulphates, arsenic oxides, cerium oxide
The substitution of nitrates in the batch formulation may be limited by the high costs and/or higher environmental impact of the alternative materials
Table 40
BAT-AELs for NOX emissions from the melting furnace in the special glass sector when nitrates are used in the batch formulation
The lower levels are associated with the use of electric melting.
The conversion factors of 2,5 × 10–3 and 6,5 × 10–3 have been used for the determination of the lower and upper value of the BAT-AEL range respectively, with values being approximated. A case-by-case conversion factor may have to be applied based on the type of production (see Table 2).
Parameter
BAT
BAT-AEL
mg/Nm3
kg/tonne melted glass
NOX expressed as NO2
Minimisation of nitrate input in the batch formulation combined with primary or secondary techniques
< 500 – 1 000
< 1 – 6

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Source: https://www.legislation.gov.uk/eudn/2012/134/annex/division/5/division/1.6/division/1.6.2/division/50 (the official version)
Page: https://openlegislation.uk/eu-decision-2012-134/annex/division-5/division-1.6/division-1.6.2/division-50
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.