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

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

??????????,“?????”“?????????????????????????”?????????

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?,??

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