?? ????????? ??????????????
????:1???400?3????????:???????
2?95???????
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??,???????
?? ??? ????????????????? ????????:???