1、 , () INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) EN 15505 2013 - - (EN 15505:2008, IDT) 2014 N 15505-2013 II , 1.0 92 . - 1.22009 . - , . - , , , 1 - - ( ) - , 4 2 ( 335) 3 , 27 2013 . 57- ) : 3166) 00497 3166) 00497 AM BY KG MD RU UZ 4 N 15505:2008 Foodstuffs. Determi
2、nation of trace elements. Determination of sodium and magnesium by flame atomic ab- sorption spectrometry (AAS) after microwave digestion ( . . - ). EN 15505:2008 CEN/TC 275 . , DIN. (en). , - , . (IDT) - . 5 31 - 2013 . 1295- EN 15505-2013 - 1 2015 . 6 N 15505-2013 III , - . - ( ) . , - , 2014 - ,
3、- N 15505-2013 1 - Foodstuffs. Determination of trace elements. Determination of sodium and magnesium by flame atomic absorption spectrometry (AAS) after microwave digestion 20150101 1 - ( ) - . ( . ). 1500 250 . , - . . 2 - . . - , . EN 13804 Foodstuffs Determination of trace elements Performance c
4、riteria, general considera- tions and sample preparation ( . . - , ). EN 13805 Foodstuffs Determination of trace elements Pressure digestion ( . . - ) 3 - ( ) . - , , . - , - . . 4 4.1 - , . - . N 15505-2013 2 4.2 4.2.1 65 %, 1,4 / 3 - , EN 13805. 4.2.2 , I = 2,7 % 42 3 4.2.1 1000 3 . 4.2.3 , II = 0
5、,65 % 4.2.1 1 : 99. 4.3 37 %. 4.4 30 %. 4.5 , 31,75 , 250 3 . 6 . 4.6 (III), - 50 / 3 250 3 14,66 (III), - 10 3 , 62,5 3 4.3. 250 3 , . 1 . 4.7 , 4.7.1 , (Na) = 1000 3 . 4.7.2 , (Na) = 10 / 3 1 3 4.7.1 100 3 - 2,7 % 4.2.2 . 1 . 4.8 , 4.8.1 , (Mg) = 1000 3 . 4.8.2 , (Mg) = 10 / 3 1 3 4.8.1 100 3 - 0,65
