{
  "url": "https://openlegislation.uk/eu-decision-2012-134/annex/division-3/division-1",
  "json_url": "https://openlegislation.uk/eu-decision-2012-134/annex/division-3/division-1.json",
  "legislation": "eudn/2012/134",
  "legislation_title": "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)",
  "legislation_url": "https://openlegislation.uk/eu-decision-2012-134",
  "path": "annex/division/3/division/1",
  "kind": "division",
  "number": null,
  "heading": "Averaging periods and reference conditions for air emissions",
  "text": "Unless stated otherwise, emission levels associated with the best available techniques (BAT-AELs) for air emissions given in these BAT conclusions apply under the reference conditions shown in Table 1. All values for concentrations in waste gases refer to standard conditions: dry gas, temperature 273,15 K, pressure 101,3 kPa.\nFor discontinuous measurements\nBAT-AELs refer to the average value of three spot samples of at least 30 minutes each; for regenerative furnaces the measuring period should cover a minimum of two firing reversals of the regenerator chambers\nFor continuous measurements\nBAT-AELs refer to daily average values\nTable 1\nReference conditions for BAT-AELs concerning air emissions\nActivities\nUnit\nReference conditions\nMelting activities\nConventional melting furnace in continuous melters\nmg/Nm3\n8 % oxygen by volume\nConventional melting furnace in discontinuous melters\nmg/Nm3\n13 % oxygen by volume\nOxy-fuel-fired furnaces\nkg/tonne melted glass\nThe expression of emission levels measured as mg/Nm3 to a reference oxygen concentration is not applicable\nElectric furnaces\nmg/Nm3\nor\nkg/tonne melted glass\nThe expression of emission levels measured as mg/Nm3 to a reference oxygen concentration is not applicable\nFrit melting furnaces\nmg/Nm3\nor\nkg/tonne melted frit\nConcentrations refer to 15 % oxygen by volume.\nWhen air-gas firing is used, BAT AELs expressed as emission concentration (mg/Nm3) apply.\nWhen only oxy-fuel firing is employed, BAT AELs expressed as specific mass emissions (kg/tonne melted frit) apply.\nWhen oxygen-enriched air-fuel firing is used, BAT AELs expressed as either emission concentration (mg/Nm3) or as specific mass emissions (kg/tonne melted frit) apply\nAll type of furnaces\nkg/tonne melted glass\nThe specific mass emissions refer to 1 tonne of melted glass\nNon-melting activities, including downstream processes\nAll processes\nmg/Nm3\nNo correction for oxygen\nAll processes\nkg/tonne glass\nThe specific mass emissions refer to 1 tonne of produced glass",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eudn/2012/134/annex/division/3/division/1",
    "retrieved_at": "2026-11-01T15:15:31.348652+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}