?? ????????? ??????????????
????:1???????:????
2??????????
3????????6???
4??????
5????????100?????
??????????,“??”“?????”?????????????????????????????????
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???????????????,????????
?????????? ? ????????????? ???????????:????????????