?????? ????/?????????? ????

?????? ?????? ????? ?????? ???????? ????????? ??? ??, ???? ????? ???? ????????? ?????? ???????? ??? ??. ?? ?????? ???? ?????? ????? ?? ???? ????? ???? ??. ? ?????? ????? ?????? ???? ??????????????? ??, ????? ?????????? ???? ???? ??????? ??? ??. ?????????? ?????????????????? ???? ?????????? ????????????? ?? ??. ??????????????? 95% ???????????? ??, ??? ???? ????? ?????? ?????????? ??? ??; ?????? ?????????? 10% ??????? ??????? ??, ?? ????? ??? ??????? ??????????? ???????? ???? ???? ????? ??.

????? ?????? ???

??????? ?????

?????

(1) ???? ????? ????????? ?????? ??????? ????????? ??? ??;

(2) ???????????? ????? ??????????, ??????? ????? ?????? ????? ?? ??? ??, ???? ????? ????????? ????????? ????????? ??? ??.

(?) ?? ??? ??????? ???? ??? ????? ??, ?? ????? ??????? ?????????? ?? ????? ???? ??, ????? ???? ????? ????? ?????? ??, ????? ?????? ????? ?????? ??????? ???? ???????????? ?????? ????? ?????? ??? ????????? ??.

?????2

????

????-??????? ????????? ????? ?? ??? ?????? ????????, ???, ???? ??? ???????? ?????? ??????, ??? ????? ??? ??????? ??? ??? ??? ??? ??????? ?????? ??? ???? ??? ??? ??.

??????? ??????????

????? ??? ???	???? ?????	??????	GB5492-85 ?? ?????
??? ??? ?????	??????????	??????	GB5492-85 ?? ?????
??????? ????? ???	???	??????	?
?????? ?????	????	??????	?
???? ????????	?.?-?.? ?????/????	?.??-?.?? ?????/????	?
??? ??	??	???%	GB5507-85
?????? ?? ??????	≤5.0%	?.??%	GB5009.3 ?? ?????
?????? ??????	≤5.0%	?.??%	GB5009.4 ?? ?????
?????? ??????	?????????	??????	????
???? ?????
??? ???? ?????	≤?? ??????		????
???????? (As)	≤1.0 ??????		???? (????/??????.??)
????? (Pb)	≤1.0 ??????		???? (????5009.12)
???????		??????? ???	???? (????/??????.??)
???	≤0.1 ??????	??????? ???	???? (????/??????.??)