GOST ISO 12081-2013 Milk Determination of calcium content Titrimetric method《牛奶 钙含量的测定 滴定法》.pdf

1、 , ( )INTERSTATE COUNCIL FOR STANDARDIZATION, METROLOGY AND CERTIFICATION(ISC) ISO 12081 2013 (ISO 12081:2010, IDT) 2014 ISO 12081 2013 II, - 1.0 92 . - 1.2 2009 . -, . , , , 1 - ( ) - ( ) , 42 ( 335)3 , ( 57- 27 2013 .) : ( 3166) 004 97 ( 3166) 004 97 AM BY KZ KG MD - RU UZ 4 ISO 12081:2010 Milk De

2、termination of calcium content Titrimetric met o (. . ). S 5 Milk an milk ro uct ISO T 34 oo ro uct - (ISO) (ID ). (en). , , . (IDT)5 22 2013 . 1706 ISO 12081-2013 1 2015 . 6 ISO 12081 2013 III - , - . ( -) . , - , 2014 -, ISO 12081 2013 IV1 ISO 12081 2013 2015 01 011 , .2 :2.1 (calcium content in m

3、ilk): , - , . .3 , -. . .4 , - .4.1 I (C2HCl3O2), 200 /3.4.2 II, 120 /3.4.3 (C2H8N2O4), .4.4 0,05 (C15H15N3O2) 100 3 (96 % ).4.5 (C2H4O2), 20 % .4.6 I (NH3) (25 % ) .4.7 II 2 3 (25 % ) 100 3. Milk. Determination of calcium content.Titrimetric method ISO 12081 2013 24.8 (H2SO4) 20 3 (98 % ) 80 3 .4.9

4、 , c(KMnO4) = 0,004 /3 0,0001 /3 - .5 , , .5.1 , 0,01 , 0,001 .5.2 50 3, 4, A.5.3 20 3, 2, A.5.4 , 1400 g.5.5 , , 30 3, 20 3.5.6 2 3 5 3, 2, A.5.7 .5.8 , .5.9 0,02 3, 1, A.5.10 , .6 , . 3. , - .7 (20 2) C . , - 40 C, (20 2) C.8 8.1 20 (. 7) (5.2), (5.3). 0,01 .8.2 8.2.1 I (4.1) (8.1) , 50 3. 30 . (5

5、.10), - , .8.2.2 (5.6) 5 3 (. 8.2.1), 5 3 II (4.2), 2 3 (4.3), (4.4) 2 3 (4.5) (5.5). . ISO 12081 2013 3 I (4.6) , -. - (4.5) , . 4 . 20 3 . 1400 g 10 . (5.7). 5 3 II (4.7) , - . 1400 g 5 . - (5.7). .8.2.3 2 3 ( 4.8) 5 3 (. 8.2.2). (5.8) . (4.9) , . , - 60 C. , , 0,01 3.8.2.4 , 20 3 . , , 0,01 3.9 9

6、.1 , wCa, , Ca 0 010000,0004( ) 0,4( )f fw V V V Vm m= = (1) V , , 3 (. 8.2.3);V0 , , 3 (. 8.2.4);m , ;f , 1, , - . 1 , f, % , f3,5 4,5 0,9723 0,9762 0,9801 0,985 0,1 0,9899.2 . ISO 12081 2013 410 , - , 5 % 0,002 %.11 :a) , ;b) , ;) ;d) , , -, , () ;e) () () ;f) , .1 ISO 385 Laboratory glassware Bur

7、ettes ( . )2 ISO 648 Laboratory glassware Single-volume pipettes ( . -)3 ISO 707|IDF 50 Milk and milk products Guidance on sampling ( . )4 ISO 1042 Laboratory glassware One-mark volumetric asks ( . ) 637.07:006.354 67.100.10 IDT : , , , , , , , -, , 01.09.2014. 60x841/8. . . 0,93. 62 . . 3415. , 123995 , ., 4.www.gostinfo.ru info gostinfo.ru