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

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

??,“?”“??”????????????

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?????????????????,??????????????????

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