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