1、 , () INTERSTATE COUNCIL ON STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) EN 15475 2013 (EN 15475:2009, IDT) EN 154752013 II , 1.092 . 1.297 . , . , , , 1 84 ( ) , 4 2 , 3 , ( 7 2013 . 43-2013) : ( 3166) 00497 3166) 00497 AZ KG D RU TJ UZ - 4 EN 15475:2009 Fertilizers Determination of ammoniaca
2、l nitrogen (. ). CEN/TC 260 . , , , , . (en). (IDT) 5 17 2013 . 1168- EN 154752013 c 1 2015 . 6 EN 154752013 III , . () . , , 2014 -, EN 154752013 1 Fertilizers. Determination of ammoniacal nitrogen 20150101 1 . , , , , . 2 . , ( ). EN 14822 Fertilizers and liming materials Sampling and sample prepa
3、ration Part 2: Sample preparation ( . . 2. ) EN 129441:1999 Fertilizers and liming materials and soil improvers Vocabulary Part 1: General terms ( . . 1. ) EN 129442:1999 Fertilizers and liming materials and soil improvers Vocabulary Part 2: Terms relating to fertilizers ( . . 2. , ) EN ISO 3696:199
4、5 Water for analytical laboratory use Specification and test methods (ISO 3696:1987) . (ISO 3696:1987) 3 EN 129441 EN 129442. 4 , , . 5 5.1 ( . . .) , ( 3 EN ISO 3696). 5.2 : (HCI) = 1,18 / . 5.3 ( ), = 0,05 /. 5.4 ( a), , = 0,1 /. 5.5 ( b . 8.2), = 0,1 /. EN 154752013 2 5.6 ( b . 8.2), , = 0,2 /. 5
5、.7 ( c . 8.2), = 0,25 /. 5.8 ( c . 8.2), , = 0,5 /. 5.9 30 %-, (NaOH) = 1,33 /, . 5.10 5.10.1 A: 1 37 = 0,1 / 1 . B: 1 1 . B. : , . 0,5 (10 ) . 5.10.2 0,1 50 95% . 100 , . (4-5 ) . : . 5.11 , (, , ), . 5.12 , . . . 6 6.1 , , . . , , . 14. , . EN 154752013 3 1 1000 ; 2 , , ( 18) ( ); 3 (PTFE) 6 ; 4 (
6、6 ) ( 18) ( , ); 5 500 ; 6 (PTFE) ( );7 1 1 4 1 1000 ( 35); 2 , , ( 35) ( 18) , (PTFE) 5 ; 3 (6 ) ( 18) , ; 4 500 ; 5 (PTFE) 2 2 EN 154752013 EN 154752013 5 1 750 1000 ; 2 , , ( 18) ; 3 ( 18) ( ); 4 (6 ), ; 5 500 3 3 265 5 EN 154752013 6 1 1000 ; 2 , , ( 18) , (PTFE) 5 ( ; ); 3 (6 ) ( 18) , ( , ); 4
7、 500 ; 5 (PTFE) 4 4 6.2 10, 20, 25, 50, 100, 200 . 6.3 500 . 6.4 3540 /. 7 . 1. EN 1482-2. EN 154752013 7 8 8.1 13, , 0,001 5, 7 10 500 . 50 20 (5.2), , , , , 200 (6.4), 500 . 8.2 , 13. (5.10.1 5.10.2) , , 50 . . , 1, . , 350 , , . , , 10 (5.9) 20 (5.8) , 20 (5.2) . , . , 100 1015 ; 250 . , . 3040 .
8、 , , . , . , (. ). , , , , 4045 . 1 , N, % , , , , , aN = (50-A)F 0 5 5 10 10 15 15 20 20 40 10 10 7 5 7 500 500 500 500 50050 25 25 25 10(50 - A) 0,14 (50 - A) 0,28 (50 - A) 0,40 (50 - A) 0,56 (50 - A) 1,00 , : 50 . c=0,05 /, : 50 . NaOH KOH, c=0,1 /.aN = (50-A)F, N , %; 50 , , ; A , , ; F , , , ,
