Kudiwa kwemakemikari okisijeni muyedzo wakakosha wekuongorora mhando yemvura inoyerera uye tsvina isati yaburitswa. Muedzo weChemical Oxygen Demand (COD) unofanotaura zvinodikanwa zveokisijeni mutsvina uye inoshandiswa pakutarisa nekudzora zvinobuda, uye kuongorora mashandiro echirimwa. Mhedzisiro yekuyerera kwetsvina kana tsvina yemvura pamvura inotambirwa inofanotaurwa nekudiwa kwayo kweokisijeni. Izvi zvinodaro nekuti kubviswa kweokisijeni kubva mumvura yakasikwa kunoderedza kugona kwayo kuchengetedza hupenyu hwemumvura. Kuongorora kweCOD kunoitwa senguva dzose mumarabhoritari ezvemvura nemakambani emaindasitiri.

Aijiren COD Test Tube idiki mukukura uye yakareruka mukurema. Inogona kuedzwa pasina chero mimwe michina yerabhoritari uye matekiniki; zvinongotora 3-5 maminetsi kuyedza sampuli, pasina zvimwe zvekushandisa kana zviridzwa, uye iri nyore kushanda.

Details of Chemical Oxygen Demand Test:

2mL yemvura kana watse sampu yemvura inowedzerwa kune 16mm girazi tsika chubhu ine digestion reagent uye catalyst. Iyo chubhu yakavharwa ne polypropylene, PTFE yakavharwa kavha uye inopisa mu block digester pa 150C kwemaawa maviri. Iyo orange Hexavalent chromium yakaderedzwa kuita greenish trivalent chromium. Iyo analytical range ye spectrophotometric nzira ndeye 5-150ppm (yakayerwa pa420nm).

Aijiren yave ichiita kugadzirwa kweCOD test chubhu neCaps kwemakore anopfuura gumi, tine ruzivo rwakanyanya uye maitiro akajairwa kugadzira COD test chubhu ine cap, uye tinogona kuvimbisa mhando yepamusoro yeCOD test chubhu inogadzirwa neAijiren nemutengo unonzwisisika.