Degrees of general hardness (dGH or °GH) is ib chav dej hardness, tshwj xeeb tshaj yog hardness. … Tshwj xeeb, 1 dGH txhais tau tias yog 10 milligrams (mg) ntawm calcium oxide (CaO) ib liter dej.
Puas yog degree centigrade ib chav ntawm hardness?
Plag: degree centigrade tsis yog ib chav tsev ntawm hardness. degree centigrade yog chav ntsuas kub. chav tsev rau hardness yog ppm (qhov ib lab), degree clarke thiab degree french.
Koj ua li cas txiav txim siab qhov hardness?
Raws li tau hais, qib ntawm hardness yog qhia raws li parts per lab (ppm) thiab yog li yuav txhais tau tias yog tus lej ntawm qhov hnyav ntawm $ CaC{O_3}$ (sib npaug rau Mg ntsev) muaj nyob rau hauv ib lab (${10^6}$) qhov chaw los ntawm qhov hnyav ntawm dej. Nws tau muab tias 1 kg dej muaj 24 mg ntawm $MgS{O_4}$.
Dab tsi yog chav ntsuas ntawm qhov hardness?
Hardness feem ntau yog qhia raws li qhov sib npaug ntawm calcium carbonate (CaCO3) hauv milligrams ib liter lossis qhov chaw ib lab. Koj tseem tuaj yeem pom qhov hardness hais tias Degrees hardness hauv Clark (Lus Askiv) degrees, Fabkis lossis German degrees.
Dab tsi yog unit of hardness?
The SI unit of hardness is N/mm². Pascal chav tsev yog li siv rau hardness ib yam nkaus tab sis hardness yuav tsum tsis txhob totaub nrog siab. Qhov sib txawv ntawm hardness tau tham saum toj no muaj qhov sib txawv ntawm kev ntsuas.
