1、 , () INTERSTATE COUNCIL ON STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) , (EN 15561:2009, IDT) EN 15561 2013 EN 155612013 II , 1.092 . 1.297 . , . , , , 1 84 ( ) 2 , 3 , ( 14 2013 . 44-2013) : ( 3166) 00497 ( 3166) 00497 KZ KG D RU UZ - 4 EN 15561:2009 Fertilizers - Determination of total nit
2、rogen in calcium cyanamide containing nitrates (. , ). CEN/TC 260 . (en). . , , , , . (IDT). 5 22 2013 . 1821- EN 155612013 c 1 2015 . 6 EN 155612013 III , . () . , , 2014 -, EN 155612013 1 , Fertilizers. Determination of total nitrogen in calcium cyanamide containing nitrates 20150101 1 . , . 2 . ,
3、 ( ). EN 1482-2 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 V
4、ocabulary Part 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 12944-1:1999 EN 12944-2:1999. 4 . . , . 5 5.1 (.) , ( 3 EN ISO 3696:1995). 5.2 , p = 1,84 /. 5.3 , . 5.4 , ., . 5
5、.5 ( ), = 0,05 /. 5.6 ( a), , = 0,1 /. 5.7 ( b, . 8.2), = 0,1 EN 155612013 2 /. 5.8 ( b, . 8.2), , = 0,2 /. 5.9 ( c, . 8.2), = 0,25 /. 5.10 ( c, . 8.2), , = 0,5 /. 5.11 5.11.1 A: 1 37 = 0,1 / 1 . B: 1 1 . B. , . 0,5 ( ) . 5.11.2 0,1 50 95 % . 100 , . ( ) 5.11.1. 5.12 120 SnCI22H2O 400 (p20= 1,18 /)
6、1 . . : 0,5 SnCI22H2O 2 (p20= 1,18 /) 50 . 5 ( -), , , . (I2) = 0,05 / . 1 (I2) = 0,05 / 0,01128 SnCI22H2O. 80 % . 35 (l2) = 0,1 /. 5.13 , 30 % - NaOH (p= 1,33 /), . 5.14 2,5 10,16 250 . 250 . 1 0,01 . 5.15 , , . 6 6.1 , , . . , , 14. , EN 155612013 3 1 1000 ; 2 , , ( 18) ( ); 3 (PTFE) (6) ; 4 ( ) (
7、 18) ( , ); 5 500 , ; 6(PTFE) ( ); 1 1 EN 155612013 4 1, 1000 ( 35); 2 , ( 35) ( 18) , (PTFE) (5) ; 3 ( ) ( 18) ; 4 500 ; 5(PTFE) ( ); a 2 2 EN 155612013 5 1 , 750 1000 ; 2 , , ( 18) ; 3 ( 18) , ( ); 4 ( ) ; 5 500 , 3 3 EN 155612013 6 2655 1 , 1000 ; 2 , ( 18) , (PTFE) (5) ( ; ); 3 ( ) ( 18) , ( , )
8、; 4 500 , ; 5 (PTFE) 4 4 EN 155612013 7 6.2 . 6.3 , 50, 100 200 . 6.4 250 . 7 , . EN 1482-1. EN 1482-2. 8 8.1 0,001 1 . 0,5 (5.3) 50 (5.12), 0,5 . 10 20 . 10 (5.4) 30 (5.2). 1 . 100150 . 250 , , . , a, b c, (5.13). 8.2 , 1, 2, 3. (5.11.1 5.11.2) , , 50 . . 50, 100 200 , 8.1, , , NaOH (5.13), . , 350 , , . , , 10 (5.13). , . , 100 1015 ; 250 .
