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2、of water-soluble ash and water-insoluble ash (. ). ISO TC 34/SC 8 ISO/TC 34 - (ISO). (en). , , . - . (IDT). - 1.52001 ( 3.6)6 2855290 II ISO 15762013 - , - . () - . , , 2014 -, III ISO 157620131 12 13 14 15 26 27 .28 3 () - .4IV ISO 15762013 Tea. Determination of water-soluble ash and water-insolubl
3、e ash 201401011 - .2 , . . , - - . ISO IEC .ISO 1572:1980 Tea Preparation of ground sample of known dry matter content (. )ISO 1575:1987 Tea Determination of total ash (. )ISO 1577:1987 Tea Determination of acid-insoluble ash (. , )ISO 1578:1975 Tea Determination of alkalinity of water-soluble ash (
4、 - , )3 :3.1 (water-soluble ash): , -, .3.2 (water-insoluble ash): , - , .4 , , , - .1 ISO 15762013 5 , :5.1 50 100 3, . , , , .5.2 , (525 c177 25) C.5.3 .5.4 .5.5 , .5.6 .6 6.1 , ISO 1575.6.2 6.2.1 , (. 5.1), 20 3 ( , ), (. 5.4). (, ), 60 3. (. 5.1), - (. 5.3) (. 5.2) (525 c177 25) C - . (. 5.5) .
5、 (525 c177 25) 30 , . , - 0,001 . .6.2.2 , , - .6.2.3 ISO 1578. , ISO 1577.7 7.1 7.1.1 ( ) w1= m2c215100 1000mRSc215 , (1) m2 , ;m0 , , ;RS , , ISO 1572. , (. 7.2).7.1.2 ( ) - w2=(m1 m2) c215100 1000mRSc215 , (2) m1 , ;2 ISO 15762013m2 , ;m0 , , ;RS , , ISO 1572.7.1.3 w =(m1 m2) c2151001m. (3)7.2 ,
6、 , 0,2 100 .8 . , - , , . , - .3 ISO 15762013 () .1 ISO 1572:1980 . - - *ISO 1575:1987 . ISO 1577:1987 . , *ISO 1578:1975 . - , * . - . 663.95:006.354 67.140.10 IDT : , , - ISO 15762013 . . . . 05.03.2014. 20.03.2014. 60c180841/8. . . . . 0,93.-. . 0,74. 101 . . 493._ , 123995 , ., 4.www.gostinfo.ru infogostinfo.ru
