????:2024-11-24 12:40:19 ??:????
????:????????:??????
??????,“???????”“?????????”?????????????????
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??????????,?????
????????????????????? ?? ??? ?????????????:???????????
????