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

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

????????? ??????? ? ???????????:?????? “?????”????

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

????:1??????:???????

2???????

3????????

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

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