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

??????? ???????? ??? ?????? ????????????? ?????? ????? ????? ????????? ??????? ?? ?????? ???? ??? ??????? ??????. ????? ???????? "????" ???? ?? ??????, ????? ???? ?? ??????? ???????? ?? ??? ??? ????????? ?? ??????? ?????????. ?????? ???? ???? ??????????? ??? ?? ??????? ?????? ???? ? ?????? ????. ???? ?????????? ??????? ???????? ??? ???????? ?? ??? ?? ???? ?????? ???, ??????? ?????? ?????? ?? ???? ????????? ????? ??? ??????? ?? ??. ?????? ?? ????? ?? ???? ??????????? ?????????????? ?? ????????? ??? ??? ?? ??? ?????? ??? ?????????? ?????????????? ???????.

??? ??????

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

??????

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

?? ??? ????????? ?? ????? ???? ??????? ???? ???? ??????? ??? ????? ???, ?????? ????? ???? ???? ?????? ??????????? ??????? ???? ?????? ????. ?? ?????, ?? ?????? ???????????, ???? ??????????????? ?? ?????? ????? ????????? ??? ???????? ?????????? ?????????? ?? ?????? ???????. ???? ?????????? ?? ?? ?????????? ???????????? ???? ?????? ????? ???? ?????? ????.

??????? ???????? FAO ?? WHO ?????? ???? ???? ???? ???? ??????????? ??? ????????? ??? ?? ??? ???, ??????? ?? ??? ??????, ????? ????, ????? ???????, ???? ?????, ???? ????, ????, ????? ???? ?? ??????, ??? ????, ???, ???????, ?????????? ???????? ?? ????? ?????? ???? ??????? ???????? ???? ????? ?????? ???? ?????????? ????? ?????? ??.

???????2

????????

??????? ??????:

???? ???? ???? ?? ?????????? ?????????? (GB2760-1996) ????, ???????? ???????? ???? ????? ?????? ??????? ???????? ?????? ?? ?????. ??????? ???????? ???? ???? ???, ??????? ?? ??????? ??? ?????????? ?????? ?? ???? ??? ?????? ????? ????? ??? ?? ??? ???? ?????? ??????? ???? ?? ?????, ??? ?????????? ???????????? ???? ?????? ?? ?????, ????? ???????? ??????? ???? ?????? ?? ???? ??? ???????? ??????? ??? ?? ?????. ?? ????????????, ??????? ?? ????? ???? ??? ???? ???? ???? ?????????? ?????? ??. ??????????, ?????????? ?? ????????????? ???, ?? ?????????? ???????????? ???????? ?????????? ?? ?????. ??????? ???????? ??? ????????? ?????? ????, ???????? ????, ???? ???? ?? ????????? ???? ???? ????? ???? ???? ???? ???????? ?????? ??????? ???? ?????? ?? ?????.

??? ???:

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

???? ????????:

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

????????????:

??????? ???????? ???? ????? ????? ???????????? ?? ??? ??????? ?????????? ??????, ??? ???? ????? ???? ?????? ?? ??? ??? ????????? ????????? (90% ???) ?? ??? ??? ????? ???????? ???????? ???? ???? ?????? ?????? ?????? ??. ???????, ??????? ???????? ?????????? ????? ?? ??????? ?????????? ??? ?????? ????? ???? ?????????? ???????????? ???????? ?????????? ?? ?????.

???? ?? ??? ????:

???? ?? ??? ???? ????????????, ????????? ???????? ???????????? ????? ?????????? ??? 8% (???????????? 6-7%) ??? ?? ??? ?????????? ??????? ?????? ???? ??. ??????? ???????? ?? ??? ???? ?????? ???? ???, ??? ?????????? ??????? ???????? ???? ??? ???? ?????? ?????? ??? ?????? ????? ?? ?????.

?????:

??? ????????? ??????????? ?????, ????? ?? ????? ?????? ? ????? ?????. ??????? ???????? ???? ??? ???? ???????? ??? ????? ??????? ?? ?? ?? ???? ?? ???? ???, ??? ??? ??? ??? ??, ?????????? ???????????? ???? ?????? ?? ?????.

?????? ?? ???? ??? ?????:

?????????????? ???? ?? ???, ?? ????????? ?????? ???????? ?? ??????? ???????? ???????? ?????? ?? ?????? ?? ???? ?????? ?????. ??? ?????? ?? ???? ?????? ???? ???????? ?? ?????, ????????, ????? ?????????? ?? ????? ???? ????? ?????? ??? ????? ?? ???? ??? ?? ??????? ????????? ????? ????????? ?????. ?????????? ???????? ??? ??????? ???????? ?????? ????? ????? ?????????.

?????:

??????? ???????? ???? ?? ????, ?????? ???? ?? ??? ????? ?? ?????????????? ???? ?????? ?? ??? ???? ?????? ?????? ? ?????? ?? ?????; ?? ??? ????, ????????? ??? ????????? ??? ????, ??? ????????? ?????????, ????????? ???? ?????? ????? ?? ???????? ?????? ??? ???? ?? ?????? ????? ???? ?????? ????.

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

????????? (????? ?????? ???):	90.0% ??????.
????:	2.0% ?????.
???:	6.0% ?????.
??????:	6.0% ?????.
????????	1.0% ?????.
??????????????? (15% 20°C):	200~3000mPa.s
PH:	6.0~7.5
???? ???? ???	30000/??????? ?????.
???? ???????????	????? 40/100g
??? ??? (Pb ???):	????? 20ppm.
??????:	????? 2ppm.
?????????:	??????? ?????