?? > ???? > ??

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

????:2024-11-25 03:29:09 ??:????

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

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

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???????,???

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

????

  • ????
  • ????