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

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

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

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

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