GOST EN 15479-2013 Fertilizers Spectrophotometric determination of biuret in urea《肥料 尿素中缩二脲的分光光度测定》.pdf

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1、 , () INTERSTATE COUNCIL ON STANDARDIZATION, METROLOGY AND CERTIFICATION (ISC) EN 15479 2013 (EN 15479:2009, IDT) EN 154792013 II , 1.092 . 1.297 . , . , , , 1 84 ( ) 2 , 3 , ( 14 2013 . 44-2013) : ( 3166) 00497 ( 3166) 00497 KZ KG D RU TJ UZ - 4 EN 15479:2009 Fertilizers Spectrophotometric determin

2、ation of biuret in urea (. ). CEN/TC 260 . (en). , , , , . . (IDT). 5 22 2013 . 1823- EN 154792013 c 1 2015 . 6 EN 154792013 III , . () . , , 2014 -, - EN 154792013 1 Fertilizers. Spectrophotometric determination of biuret in urea 20150101 1 . , . 2 . , ( ). EN 1482-2 Fertilizers and liming material

3、s. 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. Part 2. Terms relating to fert

4、ilizers. (, . . 2. , ) EN ISO 3696:1995 Water for analytical laboratory use. Specification and test methods (ISO 3696:1987) ( . (ISO 3696:1987) 3 EN 12994-1:1999 EN 12994-2:1999. 4 - 546 . 5 5.1 (.) , ( 3 EN ISO 3696:1995). . 5.2 5.3 , 0,05 / 5.4 , 0,1 /. 5.5 500 40 . 50 (NaKC4H4O64H2O). 24 . 5.6 EN

5、 154792013 2 500 15 (CuSO45H2O). . 5.7 , 250 0,250 1. 250 . 0,001 . 5.8 100 50 95 % 0,1 , 100 . , . . 6 6.1 , , 0,5 %. T : 0JJT .(1) O : .0JJO (2) E : E = log O . (3) k : sEk (4) K : sEK. (5) J0 ( ) ; J ; s ; ; k -. 6.2 , 100, 250 1000 . 6.3 2, 5, 10, 20, 25 50 25 , 0,05 . 6.4 250 . 6.5 - 20 , 25 ,

6、0,1 . - ( : , C20) 120 . , 100 ( , 4 /) . . - , , . 60 2; 60 -. 1 (10 %), . EN 154792013 3 7 , . EN 1482-1. EN 1482-2. 8 8.1 100 0 , 2, 5, 10, 20, 25 50 (5.7). 50 , (5.8) , , , 0,05 / (5.3). 20 (5.5), 20 (5.6). . 100 , 15 (302) C. , 546 , . , . 8.2 0,001 10 ; 150 250 , . . 0,001 25 , . 250 100 70 C

7、 50 . 250 . 20 C, . 100 - 150 /. 250 . , 220 . . 8.3. : . , , : - 150 , 2 1 / 250 . . , 8.3. 8.3 25 50 , 8.2, 100 , , , , , (5.3 5.4), ; , , 20 (5.5) 20 (5.6). , 15 (302) . , . 9 Z M B : .5,2Vm (6) EN 154792013 4 m , , , ; V . 10 10.1 2004 13 , . A. ISO 5725-1. , , , A. 10.2 , , , 5 % r, 1. 10.3 , , , 5 % R, 1. 1 , x,% r, % R, % 0,81 0,04 0,20 + S 0,76 0,05 0,38 11 , , : ) , ; b) ; c) , , ; d) ( ); e) ; f) ; g) , , , (). EN 154792013 5 A () 2004 7 , ISO 5725-1. A.1. A1 +S 13 9 ( ) 11 6 , % 0,81 0,76 0,01 0,02 RSDr , % 1,7 2,0 r, % 0,04 0,05

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