?? ?????????????? ?????????
????: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???????????,????????????????????
??? ??? ?? ???????????:??????????????????