BS EN 16279:2012 - Animal feeding stuffs. Determination of fluoride content after hydrochloric acid treatment by ion-sensitive electrode method (ISE)

BS EN 16279:2012

Animal feeding stuffs. Determination of fluoride content after hydrochloric acid treatment by ion-sensitive electrode method (ISE)

Status : Current, Under review   Published : July 2012

Format
PDF

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HARDCOPY



This European Standard specifies an Ion-Selective Electrode method (ISE) after hydrochloric acid treatment for the determination of fluoride from animal feeding stuffs. The content of fluoride (F-) corresponds to that of fluorine (F) specified in Commission Regulation (EU) 574/2011[3]. This European Standard is strictly based on several conventions such as those contained in the following example: EXAMPLE 0,5 g test portion for extraction of fluoride from animal feeds by means of an acid treatment with 20 ml of 1 mol/l hydrochloric acid solution at ambient temperature (20 °C to 25 ºC) for 20 min. The pH is controlled and adjusted to 5,5 in the buffered test solution before determination of fluoride by ISE using standard addition technique. The method was successfully tested in an interlaboratory study in concentrations between 100 mg/kg up to 500 mg/kg. If this method is followed strictly, then theoretically all concentrations from 40 mg/kg up to 4 000 mg/kg can be analysed within the linear calibration function. Only for concentrations lower than 40 mg/kg is the use of an interpolation technique required instead of standard addition Annex C. The quantification limit for fluoride using the conventions of the method including the standard addition technique is 40 mg/kg or lower than 2,5 mg/kg when using interpolation Annex C.




Standard NumberBS EN 16279:2012
TitleAnimal feeding stuffs. Determination of fluoride content after hydrochloric acid treatment by ion-sensitive electrode method (ISE)
StatusCurrent, Under review
Publication Date31 July 2012
Normative References(Required to achieve compliance to this standard)EN ISO 6498, EN ISO 3696
Informative References(Provided for Information)ISO 5725-1:1994, JAOAC 58, 447-481:1975, 2002/32/EC, Regulation 1831/2003, ISO 6497, EN ISO 6497
International RelationshipsEN 16279:2012
Draft Superseded By11/30199740 DC
DescriptorsChemical analysis and testing, Animal feed, Liquid chromatography, Contaminant determination (food), Determination of content, Food products
ICS65.120
Title in FrenchAliments des animaux. Détermination de la teneur en fluorure, après traitement à l'acide chlorhydrique, selon la méthode utilisant une électrode sélective d'ions (ISE)
Title in GermanFuttermittel. Bestimmung des Fluoridgehaltes nach Salzsäure-Behandlung mit ionensensitiver Elektrode (ISE)
CommitteeAW/10
ISBN978 0 580 67000 8
PublisherBSI
FormatA4
DeliveryYes
Pages22
File Size427 KB
Price£130.00


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