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

????:??????:????spa??

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

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

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