?????????????? ?????????

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

????,“?????????????”“???”?????????????

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

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