BS EN 15621:2017 specifies a method for the determination of the elements calcium, sodium,
phosphorus, magnesium, potassium, sulphur, iron, zinc, copper, manganese and cobalt in animal
feeding stuffs by inductively coupled plasma atomic emission spectrometry (ICP-AES) after pressure
digestion.
The method was fully statistically tested and evaluated for the elements calcium, sodium, phosphorus,
magnesium, potassium, sulphur, iron, zinc, copper, manganese and cobalt within the following 11
animal feeds: 2 complete feeds (pig feed, sheep feed), 3 complementary feeds (3 mineral feeds), 1
mineral premixture, 3 feed materials (MgO, phosphate, CaCO3) and 2 feed additives (CuSO4, bentonite).
For elements with a HORRAT values higher than 2 (e.g. potassium and sulphur, see Annex A), the
method is more applicable as a screening method and not for confirmatory purposes.
Other elements like molybdenum, lead, cadmium, arsenic were not fully statistically tested and
evaluated within 11 animal feeding stuff samples because these elements did not occur in
concentrations higher than the limit of quantification in most of these samples. A single laboratory
validation is therefore necessary for the use of this multi element method for these elements.
For the determination of extractable lead in minerals and feeds, containing phyllosilicates (e.g. kaolinite
clay) wet digestion with nitric acid should be used.
The method limit of quantification for each element is dependent on the sample matrix as well as on the
instrument. The method is not applicable for determination of low concentrations of elements. A limit of
quantification of 1 mg/kg should normally be obtained.
NOTE 1 This method can also be used for the determination of minerals in products with high mineral content
(>5 %). For this purpose the accuracy of the method has to be checked individually. Other more matrix-specific
analytical techniques are also available.
NOTE 2 Results using this European Standard EN 15621 may be higher than those obtained when applying
EN 15510 as pressure digestion is used in EN 15621.
Cross References:ISO 6498:2012
NF EN ISO 3696:1995 (F)
ISO 3696:1987
EN ISO 6498 (ISO 6498:2012) AS
EN 13805:2014
ISO 5725-1:1994
EN ISO 6497 (ISO 6497:2002) AS
ISO 6497:2002 Ed 1 (R08)
All current amendments available at time of purchase are included with the purchase of this document. | File Size : | 1
file
, 2.2 MB |
| ISBN(s) : | 9780580945434 |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 44 |
| Product Code(s) : | 30342880, 30342880, 30342880 |
| Published : | 08/23/2017 |
