?? ?????????????? ?????????
????:1??????????:?????????
2?????????
3???????
4?????9598
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?????,???????
???????????? ???????????????????? ?????????????? ?????:?????????