# 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 40

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 primary or secondary techniques.
The BAT-AELs are set out in Table 29.
If nitrates are used in the batch formulation for a limited number of short campaigns or for melting furnaces with a capacity < 100 t/day producing special types of soda-lime glasses (clear/ultra-clear glass or coloured glass using selenium) and other special glasses (i.e. borosilicate, glass ceramics, opal glass, crystal and lead crystal), the BAT-AELs are set out in Table 30.
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 a very colourless (clear) glass is required or special glasses are produced. 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 30
BAT-AELs for NOX emissions from the melting furnace in the domestic glass sector, when nitrates are used in the batch formulation for a limited number of short campaigns or for melting furnaces with a capacity < 100 t/day producing special types of soda-lime glasses (clear/ultra-clear glass or coloured glass using selenium) and other special glasses (i.e. borosilicate, glass ceramics, opal glass, crystal and lead crystal
The conversion factor reported in Table 2 for soda-lime glass (2,5 × 10–3) has been applied.
Parameter
Type of furnace
BAT-AEL
mg/Nm3
kg/tonne melted glass
NOX expressed as NO2
Fuel/air conventional furnaces
< 500 – 1 500
< 1,25 – 3,75
Electric melting
< 300 – 500
< 8 – 10

---
Source: https://www.legislation.gov.uk/eudn/2012/134/annex/division/5/division/1.5/division/1.5.2/division/40 (the official version)
Page: https://openlegislation.uk/eu-decision-2012-134/annex/division-5/division-1.5/division-1.5.2/division-40
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.