1、 , () INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) EN 15558 2013 (EN 15558:2009, IDT) EN 155582013 II , 1.092 . 1.22009 . , . , , , 1 84 ( ) , 4 2 84 3 , ( 03 2013 . 62-) : ( 3166) 00497 ( 3166) 004 97 AM KG MD RU TJ - 4 EN 15558:2009 Fertilizers Determination of nitric
2、and ammoniacal nitrogen according to Ulsch (. ). CEN/TC 260 . (en). , , , , . . (IDT) 5 5 2013 . 2188- EN 155582013 1 2015 . 6 EN 155582013 III , . () . , , 2014 , EN 155582013 1 Fertilizers. Determination of nitric and ammoniacal nitrogen according to Ulsch selon 20150101 1 . , , . 2 . , ( ). EN 14
3、82-2 Fertilizers and liming materials Sampling and sample preparation 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 P
4、art 2: Terms relating to fertilizers ( . . 2. , ) EN ISO 3696:1995 Water for analytical laboratory use Specification and test methods (ISO 3696:1987) . (ISO 3696:1987) 3 EN 12944-1 EN 12944-2. 4 , . , . 5 5.1 ( . . .) , ( 3 EN ISO 3696). 5.2 : , p(HCl) = 1,18 /, . 5.3 , = 0,05 /. 5.4 , , = 0,1 EN 15
5、5582013 2 /. 5.5 , 30 % ( ), . 5.6 , . 0,05 . 5.7 , 30 %, , p(NaOH) = 1,33 /. 5.8 5.8.1 A: 1 37 = 0,1 / 1 . : 1 1 . B. : , . 0,5 (10 ) . 5.8.2 0,1 50 95 %- . 100 , . (4-5 ) . 5.9 , (, ) . 5.10 , . . . 6 6.1 , , . . , , 14. , . EN 155582013 3 1 1000 ; 2 , , ( 18) ( ); 3 (PTFE) 6 ( ); 4 (6 ) ( 18) ( ,
6、 ); 5 500 ; 6 (PTFE); 7a 1 1 EN 155582013 4 1 1000 ( 35); 2 , , ( 35) ( 18) , (PTFE) 5 ; 3 (6 ) ( 18) , ; 4 500 ; 5 (PTFE) 2 2 EN 155582013 5 1 750 1000 ; 2 , , ( 18) ; 3 ( 18) ( ); 4 (6 ), ; 5 500 3 3 EN 155582013 6 1 1000 ; 2 , , ( 18) , (PTFE) 5 ( ; ); 3 (6 ) ( 18) , ( , ); 4 500 ; 5 PTFE 4 4 6.2
7、 10, 20, 25, 50, 100 200 . 6.3 , 500 . 6.4 35 40 /. EN 155582013 7 7 , . 1. EN 1482-2. 8 8.1 8.1.1 2 % ( ). 1 0,001 5, 7 10 500 . . 8.1.2 , , , . 8.1.3 , 50 , , 20 (5.2), , , . 400 (6.4). , . 8.2 50 5.8.1 5.8.2. . , 1, . 350 , 20 30%- . . , . , , 50 (5.7) 60 (5.7) , 20 (5.2). . , 100 1015 ; 250 . , . 3040 . , , . , . , (. ). , , , , 45 . EN 155582013 8 1 , N,% , , -, , , aN = (50 - A)F 0 5 10 500 50 (50 - A)0,14 5 10 10 500 25 (50 - A)0,28 10 15 7 500 25 (50 - A)0,40 15 20 5 500 25 (50 - A)0,56
