????:2024-11-24 23:53:11 ??:????
????:?????????:????????
???????????????,“?????”“??????????”??????????????????????????
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???,????
?? ???????? ?? ???????????:?????????????????????
????