?? ????????? ??????????????
????:1?????????:?????????
2?????????
3??????92??95??
4???????
5??????
?,“????”“?????”??????????????????????????????????
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??,???
??????? ? ?????? ??????:???????