1、 , () INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) EN 16075 2014 N-(2-) (2-NPT) , (EN 16075:2011, IDT) EN 160752014 II , 1.092 . 1.22009 . , . , , , 1 - , , ( ) , 4 2 527 3 , ( 30 2014 . 68-) : ( 3166) 00497 ( 3166) 004 97 AM BY KG MD UA RU - 4 EN 16075 Fertilizers Deter
2、mination of N-(2-nitrophenyl)phosphoric triamide (2-NPT) in urea and fertilizers containing urea - Method using high-performance liquid chromatography (HPLC) (. N-(2-) , . ). . CEN/TC260 (en). , , , , ) (IDT) 5 22 2014 . 1164- EN 160752014 1 2016 . 6 EN 160752014 III , . () . , , 2014 EN 160752014 1
3、 N-(2-) (2-NPT) , , Fertilizers - Determination of N-(2-nitrophenyl)phosphoric triamide (2-NPT) in urea and fertilizers containing urea using high-performance liquid chromatography 20160101 1 N-(2-) (2-NPT) , (HPLC). 2 . , ( ). EN 1482-2 Fertilizers and liming materials Sampling and sample preparati
4、on Part 2: Sample preparation ( . . 2. ) EN 12944-1:1999 Fertilizers and liming materials and soil improvers Vocabulary Part 1: General terms (, . . 1. ) EN 12944-2:1999 Fertilizers and liming materials and soil improvers Vocabulary Part 2: Terms relating to fertilizers (, . . 2. , ) EN ISO 3696:199
5、5 Water for analytical laboratory use - Specification and test methods ( . ) (ISO 3696:1987) 3 EN 12944-1:1999 EN 12944-2:1999. 4 . 2-NPT -. 5 ( 0,5 /, 3 EN ISO 3696). 5.1 N-(2-) . 5.2 2-NPT, = 1 /3. 1000 3 0,1 1/R 2-NPT, R 2-NPT. , . . 5.3 . 5.4 -. EN 160752014 2 6 6.1 0,1 . 6.2 . 6.3 0,45 . 6.4 (H
6、PLC). 6.5 . 6.6 -. 6.7 HPLC 1). 6.8 . 7 , . 1. EN 1482-2. 8 8.1 100 3 5 (m) 0,1 , 70 3, (6.2) . (6.3) . . , . 8.2. 8.2 100 3 5 (m) 0,1 , 70 3, (6.2) . 2 3- (5.4), . - . (6.3). 8.3 2-NPT (5.2) , 1 ( 100 3). 1 2-NPT, /3 (5.2), 0,5 50 1,0 100 5,0 500 10,0 1000 20,0 2000 8.4 : . : / 50+50 ( ). : 0,5 3/.
7、 : 20 . : 214 . . 8.5 1) Synergi Fusion RP80 4 , 250 4,6 . CEN. EN 160752014 3 20 (8.3). 2-NPT , 0,99. . 20 . . (8.1 8.2) . 9 9.1 . 2-NPT, w2-NPT, %, maVbAw100)(pkNPT2(1) Apk ; b V , a m 8.1 8.2, . 8.1 8.2, 2-NPT (/) ( 1) , 2-NPT 500NPT2Aw A 2-NPT ; 500 2-NPT, . 9.2 . 0,001 %. 10 10.1 2009 . 11 3 .
8、A. ISO 5725-2. , , , , . 10.2 , , , r, 2, 5 % . 10.3 , , R, 2, 5 % . EN 160752014 4 2 , x , / r, / R, / 1 238,62 21,63 40,10 2 462,59 39,99 65,01 3 695,38 38,11 89,91 11 : a) , ; b) ; c) ; d) ( ); e) ; f) ; g) , , , . EN 160752014 5 A () 2009 . 11 , . A.1 A.1 1 2 3 2009 2009 2009 11 11 11 11 11 11 x
9、 , / 238,62 462,59 695,38 sr, / 7,81 14,44 13,76 RSDr, % 3,27 3,12 1,98 r (2,77 sr), / 21,63 39,99 38,11 sR, / 14,48 23,47 32,46 RSDR, % 6,07 5,07 4,67 R (2,77 sR), / 40,10 65,01 89,91 EN 160752014 6 1 EN 1482-1 Fertilizers and liming materials. Sampling and sample preparation Sampling ( . . 1 ) 2 I
10、SO 5725-1 Accuracy (trueness and precision) of measurement methods and results - Part 1: General principles and definitions ( ) . 1. 3 ISO 5725-2 Accuracy (trueness and precision) of measurement methods and results - Part 2: Basic method for the determination of repeatability and reproducibility of
11、a standard measurement method ( ) . 2. 4 Regulation (EC) No 2003/2003 of the European Parliament and of the Council of 13 October 2003 Regulation (EC) No 2003/2003 of the European Parliament and of the Council of 13 October 2003 relating to fertilizers ( (EC) 2003/2003 13 2003 ., ) EN 160752014 7 ()
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