1、 , () INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) EN 15604 2013 : , , (EN 15604:2009, IDT) EN 156042013 II , 1.092 . 1.22009 . , . , , , 1 84 ( ) , 4 2 , 3 , ( 7 2013 . 43-2013) : ( 3166) 00497 ( 3166) 00497 AZ KG D RU TJ UZ - 4 EN 15604:2009 Fertilizers Determination o
2、f different forms of nitrogen in the same sample, containing nitrogen as nitric, ammoniacal, urea and cyanamide nitrogen (. : , , ). CEN/TC 260 . , , , , . . (en). (IDT). 5 17 1167- EN 156042013 1 2015 . 6 EN 15604-2013 III , . () . , , 2015 , EN 156042013 1 : , , Fertilizers. Determination of diffe
3、rent forms of nitrogen in the same sample: nitric, ammoniacal, cyanamide and urea nitrogen 20150101 1 . , 1 ( I), . 2 . , ( ). 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 im
4、proversVocabulary 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 15475 FertilizersDetermination of ammoniacal nitrogen (. ) EN 15562 Fertilizers Determination of cyanamide nitroge
5、n (. ) EN ISO 3696:1995 Water for analytical laboratory use. Specification and test methods (ISO 3696:1987) ( . (ISO 3696:1987) 3 EN 12994-1 EN 12994-2. 4 4.1 , 1 ( I), , . . . EN 156042013 2 EN 15475. , 0,5 %, , , 1 ( I). 4.2 4.2.1 , 4.2.2 4.2.7, , . 4.2.2 4.2.2.1 . ( EN 15475). 4.2.2.2 , , . ( EN
6、15475). 4.2.3 , . ( EN 15475). 4.2.4 4.2.4.1 , 4.2.2, , 4.2.3, (4.2.2) (4.2.5) (4.2.6). 4.2.4.2 , 4.2.2.2, , 4.2.3, , , 4.2.2.2, 4.2.5, 4.2.6, 4.2.7. 4.2.5 4.2.5.1 EN 15475. 4.2.5.2 / , EN 15475. 4.2.6 4.2.6.1 , . 4.2.6.2 : , . . . 4.2.6.3 1. 1 1 4.2.2.1-(4.2.5.2+4.2.7) 2 4.2.3-(4.2.5.2+4.2.7) 3 4.2
7、.2.1-4.2.5.2 4 4.2.3-4.2.5.2 4.2.7 , . 5 5.1 ( . . .) 3 EN ISO 3696. 5.2 , . . . 5.3 , . . . 50 . EN 15604-2013 3 5.4 , . . . 5.5 , . . . 5.6 , . . . 5.7 , . . . 5.8 (20=1,84 /) . 5.9 c = 0,1 /. 5.10 , 30 %, . 5.11 c=0,2 /, . 5.12 120 SnCl22H2O 400 (20=1,18 /) 1 . . : 0,5 SnCl2 2 (20=1,18 /) 50 . 5
8、( ), , . (I2) c = 0,05 / . 1 c = 0,05 / 0,01128 SnCl22H2O. 80 % , , , . 35 (I2) c = 0,05 /. 5.13 , 20=1,84 /. 5.14 (20=1,18 /) . 5.15 96 % 100 %. 5.16 , 30 % H2SO4 ( ). 5.17 , FeSO47H2O. 5.18 c = 0,05 /. 5.19 . 5.20 . 5.21 c = 0,1 / ( ). 5.22 . 5.23 10 %. 5.24 c = 2 /. 5.25 c = 0,1 /. 5.26 0,5 100 .
9、 0,1 / (5.25), pH-, pH 5,4. 5.27 95 % (5.32) ( , ). 3 . 5.28 0,3 0,4 , 0,95 1,25 . 5.29 , , . 5.30 5.30.1 A 1 37 0,1 / 1 . 5.30.2 B 1 1 . 5.30.3 A B. EN 156042013 4 : , . 0,5 (10 ) . 5.30.4 0,1 50 95 %. 100 , , . (4 5 ) , 5.30.3. 5.31 ( , pH6 pH8), . 5.32 , 95 %. 6 6.1 , , . . , , 14. . EN 15604-2013 5 1 1000 ; 2 , , (18) ( ); 3 (PTFE) 6 ( ); 4 (6 ) ( 18) , ( , ); 5 500 ; 6 (PTFE); 7a 1 1 EN 156042013 6 1 1000 ( 35); 2 ,
