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

??????? ????? ?????? ?????? ?? ??? ??????? ??????? ????????? ???? "???? ?????". ??? ????? ?? ????? ????? ???? ??????? ?? ??? ??. ???????? ?????? ???????? ?? ???????? ?? ?????????????? ???? ????? ??? ??? ??????? ???? ????????. ???? ????????????? ?? ??? ?????? ?????????????. 95% ???? ????? ??????? ?? ??????? ???????? ?????? ?? ???????? ????????? ????? ???????? ????? 10% ???? ??????? ?? ?????? ???????? ????? ?? ????????? ????????? ???????.

???? ???

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

?????

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

(2) ???? ??????? ???????? ??????? ??????? ?????? ???????? ??????? ???? ????? ?? ????? ???????? ???????

(3) ??? ??? ?????? ??????? ?????? ????? ??? ???????? ?? ?????? ???? ???? ????? ?????? ???????? ??? ???? ?????? ??????? ?????? ?? ???????? ???? ?????? ????? ????? ???????? 720 ???.

?????2

???

???? ?? ???? ???? ??????? ??? ????? ???? ????? ????? ???? ?????????? ??????? ????????? ??????? ??????? ?????????? ???? ????? ??????? ????????? ??????? ?????? ??? ??? ??????.

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

?????? ??????	????? ????	??????	GB5492-85
??????? ??????	?????	??????	GB5492-85
??? ?????? ????????	???	??????	?
?????? ??????	???	??????	?
??????? ????????	0.4-0.6 ??/??	0.40-0.55 ??/??	?
??? ??????	80	100%	GB5507-85
????? ??? ???????	≤5.0%	3.25%	GB5009.3
????? ??????	≤5.0%	2.65%	GB5009.4
????? ????????	????	??????	?? ??
??????? ???????
?????? ??????? ???????	≤10 ??? ?? ???????		??????????? ????????????
??????? (As)	≤1.0 ??? ?? ???????		AAS(GB/T5009.11)
?????? (Pb)	≤1.0 ??? ?? ???????		AAS(GB5009.12)
?????????		?? ??? ???????	AAS(GB/T5009.15)
??????	≤0.1 ??? ?? ???????	?? ??? ???????	AAS(GB/T5009.17)