????:2024-11-24 23:42:58 ??:????
????:????:???????????
???,“??”“??”???????????????
11??????21???????????,“?”??????????????????,???????????????????,11??????????18???????“??????????”?????3920%?
?????,?????,???????,2025???????,??????????????,???????
???????“???????”
“??”???????
???????,??,????????????????????,???
??,????????????????????,??????????«?»??????«GB/T8939-2018?????(???)»??????,???pH?????????????????????????;?????????????GB15979«????????»????????????
«?????????????»?,????????????????????????????????,???????????????????????????????????
???«GB/T8939-2018?????(????????)»?,?????“±4%”???????,????,??????,?????,???“???”?
?????????????????????pH?????????,????????????4.0~9.0??,???????????,???????????????????????????,pH?4.0~9.0??????????????pH????4.0~8.5,??????????????????4.0~7.5????,?????????????,??????????pH?????
“???? ”“?????????,????????C???”??????????????????????,??“?”?,?????,???????????????“?????”?????????????
??????????«????????????»,????????????
«T/NAHIEM 003-2017?????(???)»??????2017?????10??18????????????,???????????“?????”???«?»???????????
11?????????????????????21????????,“?????”??????????????,“?????????????”??????
?
??????“?????????????”
???«????»????????????????????,???????????,?????,????“?”???????????????,?????????“?”???,??????????????“?????????”??????????????,??,???????????????16??????????????1??,???????????,????????????,??????????,???
?“??????”????????????????????,?????“???”,?????????????“??”?
11????????????????22??????????????,??????????????,«??????????(??????????)»???????????“??”?????“???????????????????”,????“??????????????”?
???????????????????,??????????????????,??“??????????????”,??,??«????»??????????????????
??????????????????????,?????,????????????????????,?????“????”?????????????????2017??????,?????????,?????????????,???“??????”??,???
????????
??
?,????????2025?????
11??????????21??????,“?”??????????????????????,???????20241954-T-607?????????????????«?????(??????????)»???????,?????????2024??????????6?????28??????????????,?????????????16???????????????????????????
21?????,??????,???????????????“???????????,???????,??,??,??????????????????”??????,???????????????????????,?,“??,???????????”
?????????????????,2024??????????6????????????25???????,?(??)?????2024?????????12?????????????????,???????????GB15979-2024«?????????????????????????»?????????????GB15979-2002«?????????????»,?????2025????????7???1??
????????,??,??????????????????,2025???????,«???(????????????)»?????????????,??????,???????????????????????????????,?2025????????????????,??
????????????? ?????????? ??? ????:??????????
????