????:1??????????:????VX

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

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