GOST EN 15560-2013 Fertilizers Determination of total nitrogen in calcium cyanamide nitrate free《肥料 无硝酸盐的氰胺化钙中总氮含量的测定》.pdf

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1、 , () INTERSTATE COUNCIL ON STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) EN 155602013 , (EN 15560:2009, IDT) EN 155602013 II , 1.092 . 1.297 . , . , , , 1 84 ( ) 2 , 3 , ( 05 2013 . 61-) : RU AZ KZ KG MD UZ ( 3166) 00497 ( 3166) 00497 AZ KZ KG D RU UZ - 4 EN 15560:2009 Fertilizers Determinatio

2、n of total nitrogen in calcium cyanamide nitrate free (. ). CEN/TC 260 . (en). . , , , , (IDT). 5 22 2013 . 1846- EN 155602013 c 1 2015 . 6 EN 155602013 III , . () . , , 2015 -, - EN 155602013 1 , Fertilizers. Determination of total nitrogen in calcium cyanamide nitrate free 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 Vocabu

4、lary 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 0,3 0,4 (II) 0,95

5、 1,25 (II). 5.5 , 30 %, (NaOH) = 1,33 /, . EN 155602013 2 5.6 , = 0,05 /. 5.7 , , = 0,1 /. 5.8 , = 0,1 /. 5.9 , , = 0,2 /. 5.10 , = 0,25 /. 5.11 , , = 0,5 /. 5.12 5.12.1 A: 1 37 = 0,1 / 1 . B: 1 1 . A B. , . 0,5 (10 ) . 5.12.2 0,1 50 95% . 100 , , . , 5.12.1 ( 4 5 ) 5.13 , , . 5.14 , . 6 6.1 , , , .

6、 . , , , , 1, 2, 3 4. , . EN 155602013 3 1 1000 ; 2 , , ( 18) ( ); 3 (PTFE) (6) ; 4 ( ) ( 18) , ( , ); 5 500 , ; 6(PTFE) ( ); 7 1 1 EN 155602013 4 1 , 1000 ( 35); 2 , , ( 35) ( 18) , (PTFE) (5) ; 3 ( ) ( 18) ; 4 500 , ; 5(PTFE) ; a . 2 2 EN 155602013 5 1 , 750 1000 ; 2 , , ( 18) ; 3 ( 18) ( ); 4 ( )

7、, ; 5 500 ; 3 3 EN 155602013 6 2655 1 , 1000 ; 2 , ( 18) , (PTFE) (5) ( ; ); 3 ( ) ( 18) , ( , ); 4 500 ; 5 (PTFE) 4 4 6.2 . 6.3 50, 100 200 . 6.4 250 . EN 155602013 7 7 , . EN 1482-1. EN 1482-2. 8 8.1 0,001 1 . 50 (5.2), 10 15 (5.3) (5.4). , , 2 , 100 150 . , 250 , , . 8.2 , 1, 2 3. (5.12.1 5.12.2)

8、 , , 50 . . 50, 100 200 , , 8.1, , , (5.5), . , 350 , . , , 10 (5,5). , . , 100 1015 ; 250 . , . 3040 . , , . , , . , (. ). , , , , , 45 . 1 , , N, % , , , , , N=(50-)F 0 5 10 500 50 (50-) 0,14 5 10 10 500 25 (50-) 0,28 10 15 7 500 25 (50-) 0,40 15 20 5 500 25 (50-) 0,56 20 40 7 500 10 (50-) 1,00 , : 50 . = 0,05 / , : 50 . NaOH KOH = 0,1 / . aN = (50-A)F, N , %; 50 , , ;A , , ;F , , , , , . EN 155602013 8 2 , , b