????:1????????:?????95

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??????????,????????????????????

????????? ????????????? ?? ?????:??????