GOST 31980-2012 Milk Spectrometric method for determination of total phosphorus content《牛奶 总磷含量测定的分光光度法》.pdf

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2、r determination of total phosphorus content1 .2 : 12.1.00491 . . 12.1.00588 . - 12.1.00776 . . - 12.1.01979 . . - * 12.4.00983 . . . 12.4.02175 . . 177074 ( 104283, 478880) ., , , . 311877 . . 419875 . . 420477 . . 5725-62003 ( ) . 6. * 670972 . 1092976 . . 1202676 . * 12.1.0192009 - . . .* 5725-620

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5、 19908, 55 . 12026 II - 11 . 5 . (KH2PO4), . ., 4198. , 50 /3. , . ., 4204, 50 %. , . ., 3118, 36 /3. 10929, 300 /3,- . , 99,5 %, - 0,005 %, 5 1. 6709. , , - - , .8 8.1 (40 c177 2) C, - (20 c177 2) C.8.2 , , .8.3 8.3.1 50 %278 3 , -, 722 3 . 1 (20 c177 5) C .8.3.2 36 /3( ) 1000 3 83 3 (c11420= 1,19

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7、8.3.7 , 1 310 100 3 10 3 - (. 8.3.6), . . 10 /3. .9 9.1 9.1.1 (1,500 c177 0,001) , 8.1. 4 3 .9.1.2 . , - . . .9.1.3 , (20 c177 2) C. 2 3 . , . - , , .9.1.4 (20 c177 2) C - 2 3. , . (30 c177 1) , . - .9.1.5 (20 c177 2) C. - 100 3 .9.1.6 2 3 50 3 25 3 . 2,0 3 - (. 8.3.5), .9.1.7 15 .9.1.8 (20 c177 2) C . 9.5. 1 .9.2