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

2???????

3???????????

4?????????????

5????v??

????,“??”“??”?????????????????????

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?????,???

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