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Analytical methods
The analytical methods for the detection of irradiated foods are standardised by the European Committee for Standardisation (CEN)
CEN has standardised the methods upon a Commission mandate.
The European standards have been adopted by the Codex Alimentarius Commission as General Methods and are referred to in the Codex General Standard for Irradiated Foods in section 6.4 on 'Post-irradiation verification'.
EN 1784:2003 Detection of irradiated food containing fat - Gas chromatographic analysis of hydrocarbons 
EN 1785:2003 Detection of irradiated food containing fat - Gas chromatographic/mass spectrometric analysis of 2-alkylcyclobutanones updated
EN 1786:1996 Detection of irradiated food containing bone - Method by ESR spectroscopy
EN 1787:2000 Detection of irradiated food containing cellulose by ESR spectroscopy
EN 1788:2001 Thermoluminescence detection of irradiated food from which silicate minerals can be isolated
EN 13708:2001 Detection of irradiated food containing crystalline sugar by ESR spectroscopy
EN 13751:2002 Detection of irradiated food using photostimulated luminescence
EN 13783:2001 Detection of irradiated food using Direct Epifluorescent Filter Technique/Aerobic Plate Count (DEFT/APC) - Screening method
EN 13784:2001 DNA comet assay for the detection of irradiated foodstuffs - Screening method
EN 14569:2004 Microbiological screening for irradiated food using LAL/GNB procedures
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