Video: Yuav ua li cas koj xam ppm tsis lees paub?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rau xam : Piv txwv li, yog tias koj muaj 25 daim tsis zoo hauv kev xa khoom ntawm 1,000 daim. 25/1000 =. 025 lossis 2.5% puas lawm.. 025 X 1,000,000 = 25,000 PPM.
Tsis tas li lo lus nug yog, koj yuav suav li cas feem pua tsis lees paub?
Yog li, piv txwv li, yog tias koj cov kais dej nyeem 280 thiab koj cov dej ROproduct nyeem 15, koj txiav txim tus tsis lees paub ntawm RO chav tsev los ntawm rho tawm 15 ntawm 280 kom tau 265, faib 265 los ntawm 280 kom tau 0.946, ces muab 100 kom tau 94.6% kev tsis lees paub.
Koj ua li cas xam qhov tsis xws luag hauv ib chav? Cov qauv yog tus naj npawb tag nrho qhov tsis xws luag muab faib los ntawm tag nrho cov naj npawb ntawm units sampled los yog soj ntsuam ntau los ntawm tus naj npawb ntawm qhov tsis xws luag cib fim perunit.
Ib yam li ntawd, tus qauv ntawm PPM yog dab tsi?
Concentration hauv ntu ib lab , los yog ppm ua , zoo li qhov hnyav feem pua, tshwj tsis yog koj muab qhov loj piv los ntawm 1, 000, 000 es tsis txhob 100. Qhov ntawd yog, ppm ua =(mass of solute ÷ mass of solution) x1,000,000.
RO tsis lees paub tus nqi yog dab tsi?
RO daim nyias nyias yog siv los tshem tawm cov yaj ions hauv cov txheej txheem uas tsis cia siab rau qhov sib txawv ntawm qhov pores rau kev pom. Cov ntaub ntawv niaj hnub tau luam tawm tus nqi tsis kam lees nce mus txog 99.8 feem pua, txhais tau tias 0.2 feem pua ntawm cov khoom noj khoom haus yuav dhau los ntawm RO txheej txheej.
Pom zoo:
Yuav ua li cas koj thiaj paub tias ib yam dab tsi muaj nuj nqi los yog tsis?
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