I-16mm ephezulu ye-BOROSILiLing Glass COC COCT TET TUBE

Ibanga eliphakeme, ama-oxygen afunwa i-oxygen: Ama-vials agaya amakhemikhali, i-EPE ephezulu i-Oxygen funa (i-COD): I-US EPA evunyelwe indlela yokuhlaziywa kwamanzi asetshenziswayo I-150 \ test iqukethe iMercury.

I-AIJIREEN TEST TUBE TUBE yenziwa ngengilazi ye-borossilte, enganciphisa izinguquko ze-PH kanye nokungcola okungenziwa kufakwe ingilazi ye-soda lime. Ishubhu lokuhlola ingilazi lisetshenziselwa ukuhlaziya emazingeni okushisa aphezulu kunama-degree angama-130. Kwenziwa kusuka kwisitoreji selebhu ngezinhloso ezahlukahlukene futhi kungabamba cishe noma yini. I-Septa yenziwa nge-PTFE silicon rubber gasket, enomsebenzi oqinile wokubopha futhi ingamelana nokugqwala kwamakhemikhali ahlukahlukene. Isetshenziselwa ukuhlolwa kwamanzi emoyeni; amanzi amdaka ezimboni kanye nokuhlolwa kokulawulwa kwenqubo; kanye nokuhlolwa kwamanzi emvelo. Ama-tubetes asetshenzisiwe aqukethe i-sulfuric acid namanye amakhemikhali, ngakho-ke ama-reagents kumele aphathwe ngokucophelela. Okuqukethwe yipayipi kufanele kuchithwe ngokuya ngezidingo zabaphathi bendawo.

I-16mm glass cod test tube \ cod yokugaya ishubhu lokuhlola

Usayizi: 16 * 100mm \ 16 * 90mm \ 125mm \ 16 * 150mm

Ngokuhlolwa kwe-AIJiren COC TUBE, umsebenzisi ngamunye angenza kalula ukutholwa kwamanzi okubucayi kakhulu nokunembile. Isikhathi esidingekayo senqubo yokulinganisa sifinyezwa kakhulu, ikakhulukazi ukuhlaziya okujwayelekile kanye nokulinganisa, ngenkathi kunciphisa kakhulu umthwalo. I-COD test tube iqukethe umthamo oqondile we-reagent. Ngakho-ke, amasheya amaningi ngokweqile agwemeka futhi ukuphepha komsebenzi kuyathuthuka.

Isifunda samakhemikhali samakhemikhali i-tubis Suppler umphakeli yimakethe yesibili ngobukhulu ama-oxygen generator.iirijiren ngumhlinzeki oholayo wamashubhu afuna i-oxygen aphefumula eChina.

I-2ML chromatography vials ye-HPLC. Ama-Vials we-Aijiren we-2ml Chromatography Vavie ama-vials anezinsizakalo ezenziwe ngezifiso ezifana nombala we-PP cap, ukuthi ngabe i-vial inamamaki e-tick kanye nelebula?

I-AIJIREN ingumkhiqizi omkhulu we-chromatography esebenza eningizimu yeChina. Kune-HPLC VIAL, GC Vial, i-Septum kanye nokuvalwa, i-EPA VIAL, TOC VIAL, TEST TUSTLE, I-Reagent Bottle kanye nesirinji nesirinji esitolo se-AIJIREN. Ungathola konke okudliwayo ngentengo ephelele. Sicela ukhethe okudingekayo kukhathalogi eqondile.

Amashubhu wokuhlola we-Chemigen Oxygen (COD) angamathuluzi adingekayo wokuhlaziywa kwekhwalithi yamanzi, esetshenziswa kabanzi ekuhlolweni komasipala, kwezimboni nakwezemvelo. Lawa mashubhu akhethekile enzelwe ukubekezelela amazinga okushisa aphezulu kanye nezimo zamakhemikhali ezinokhahlo ngesikhathi senqubo yokugaya i-Cod. Masingene kwizici ezibalulekile kanye nemikhuba emihle yokusebenzisa amashubhu wokuhlola ama-COC.

Ama-POD Reagent Vials atholakala ku: Ukuhlolwa kwe-COD TUBE, i-COD tube testsod tube test, ama-heater we-cod-block 3, ama-eco 6 ama-thermoreactors we-COD.So noma yiziphi izidingo mayelana ne-COD reagent vials, sicela uxhumane ne-AIIJIRET VIALS, sicela uxhumane ne-AIJIRET VIALS, sicela uxhumane ne-AIIIRET VIALS.

Amashubhu we-Wholeses ama-oxygen ane-oxygen ane-cap evela eChina Aijiren Tech.ijiren ngumhlinzeki oholayo wamashubhu afuna i-oxygen aphefumula eChina.

I-ND24 TOC Screw Nexpers (Sula
Ukulahlwa: Ukulahlwa
Isitifiketi: CE, ISO
Izinto ezibonakalayo: ingilazi
I-Bottle Top: Screw Neck
Umthamo Wokukhiqiza: 50000000pcs \ Isonto
Ukucaciswa: I-100PCS \ Pack
Uphawu lwentengiso: Aijiren

I-COD Test Tube ekhiqizwa yi-AIJIREN ivame ukusetshenziselwa ukuhlolwa kwe-oxygen (i-COD) ye-oxygen (i-COD) ngokuvamile, kanye nokuhlolwa kwe-COD kusebenzisa i-oxidant ethile ku-oxidizetance (kufaka phakathi i-organics) kwisampula yamanzi. Njengoba izinga lokushisa nesikhathi sehla, ukuhlolwa kudinga le ndlela kuvame ukusetshenziswa kabanzi njengezilinganiso zokungcola okungokwemvelo.

Ukuhlolwa kwe-COD kuyinkomba engcono engcono yokungcola kwe-organic emanzini angcolile wezimboni aqukethe ama-cyanides kanye nezinsimbi ezisindayo. Ukuhlolwa kwama-COD kunika impendulo ngokushesha ekushintsheni kwezimo ngaphambi kokugxeka.

I-AIIJIREN ESUARICY CLICCIMINION TOLIMETRIC TEST TUBE TUBE ingu-16mm Kunokucaciswa okuhlukahlukene, 9ml, 10ml, 12ml, 15ml. Okuzenzakalelayo kungama-25 pcs \ foam Box. Uma udinga ama-PCs ayi-100 \ ibhokisi, sicela uxhumane nomphathi womkhiqizo.

Ukuhlolwa kwe-Chemical Oxygen (COD) kuyindlela ebalulekile yokuhlola ikhwalithi yamanzi, ikakhulukazi ukwelashwa kwamanzi amdaka kanye nokuqapha imvelo. Amashubhu wokuhlola ama-COC enza lula inqubo, kepha ukusetshenziswa okufanele kubalulekile ekutholeni imiphumela efanele

Ukulethwa okusheshayo, zonke izimpahla zingahanjiswa ngezinsuku ezi-3-7. Imikhiqizo emikhulu ye-Qty isesitokweni kumakhasimende. Okuzenzakalelayo kungama-25 pcs \ foam Box. Uma udinga ama-PCs ayi-100 \ ibhokisi, sicela uxhumane nomphathi womkhiqizo.

I-AIJIREEN TEST TUBE TUBE yenziwa ngengilazi ye-borossilte, enganciphisa izinguquko ze-PH kanye nokungcola okungenziwa kufakwe ingilazi ye-soda lime.  Ishubhu lokuhlola ingilazi lisetshenziselwa ukuhlaziya emazingeni okushisa aphezulu kunama-degree angama-130.  Kwenziwa kusuka kwisitoreji selebhu ngezinhloso ezahlukahlukene futhi kungabamba cishe noma yini. Ishubhu lokuhlola i-COD lincane ngosayizi nokukhanya kwesisindo. Ama-tubetes asetshenzisiwe aqukethe i-sulfuric acid namanye amakhemikhali, ngakho-ke ama-reagents kumele aphathwe ngokucophelela. 

Ptfe \ abicone cap Septa
Ubungako 100 ngeyunithi ngayinye
Phambilini TOC-40-100
1.ND24 EPA Screw Nexpers (Sula \ Amber).
2. Itholakala ngezinsimbi ezimnyama noma ezimhlophe ngentambo ye-24mm.
3. Itholakala njengezimpawu ezivaliwe ze-top screw screw noma umgodi wesikhungo.
4. Imvelo PTFE \ Imvelo Silicone Septa 22 * ​​3MM
5. Ukuhlaziywa Kwezemvelo
Ukulahlwa: Ukulahlwa

Ishubhu lokuhlola i-COD elikhiqizwa yi-AIJIREEN livame ukusetshenziselwa ukuhlolwa kwekhwalithi yamanzi. Ukuze uvumelane namamodeli ahlukene kanye nemikhiqizo yemishini, i-Aijiren yethule ishubhu lokuhlola le-Multi-usayizi we-COD. I-caliber ingumfaniswano 16mm, kepha osayizi bangama-9ml, 10ml, 12ml no-15ml. Ishubhu lokuhlola le-9mL COD linefulethi eliphansi, ishubhu lokuhlola le-10ml COD linefulethi eliphansi kanye ne-12ml kanye ne-15ml ne-cod test tubes inendawo eyindilinga.

Ukusetshenziswa: Ukuhlaziywa kwelebhu
I-LOOR: Okwakhelwe ngokwezifiso
Uphawu lwentengiso: Aijiren
Imvelaphi: China
OEM: Kuyatholakala
Isampula: Kunikezwe ngokukhululeka

I-AIJIREEN TEST TUBE TUBE yenziwa ngengilazi ye-borossilte, enganciphisa izinguquko ze-PH kanye nokungcola okungenziwa kufakwe ingilazi ye-soda lime.  Ishubhu lokuhlola ingilazi lisetshenziselwa ukuhlaziya emazingeni okushisa aphezulu kunama-degree angama-130.  Kwenziwa kusuka kwisitoreji selebhu ngezinhloso ezahlukahlukene futhi kungabamba cishe noma yini. Ishubhu lokuhlola i-COD lincane ngosayizi nokukhanya kwesisindo. Kungahlolwa ngaphandle kweminye imishini yelabhoratri nochwepheshe; Kuthatha kuphela imizuzu engu-3-5 yokuhlola isampula, ngaphandle kwezinto ezingezekile noma izinsimbi futhi kulula ukusebenza. Lawa mashubhu wokuhlola aqinisekisiwe nge-SGC. Lawa amashubhu angasetshenziswa kanye kuphela, ngakho-ke awakwazi ukusetshenziswa kabusha. Ngokuhlolwa kwe-AIJiren COC TUBE, umsebenzisi ngamunye angenza kalula ukutholwa kwamanzi okubucayi kakhulu nokunembile.

Isifunda samakhemikhali samakhemikhali i-tubis Suppler umphakeli yimakethe yesibili ngobukhulu ama-oxygen generator.iirijiren ngumhlinzeki oholayo wamashubhu afuna i-oxygen aphefumula eChina.

I-2ML chromatography vials ye-HPLC. Ama-Vials we-Aijiren we-2ml Chromatography Vavie ama-vials anezinsizakalo ezenziwe ngezifiso ezifana nombala we-PP cap, ukuthi ngabe i-vial inamamaki e-tick kanye nelebula?

Amashubhu wokuhlola we-Aijiren anezinhlaka zenziwa kusuka ku-BOROSILiLing Glass 3.3 ibenze bahle kakhulu ukusetshenziswa kwelabhoratri okujwayelekile.
Usayizi wePack: Pack of 100
Usayizi: 16x125mm
Ububanzi beshubhu: 16mm
Ubude be-Tube: 125mm
Ubukhulu bodonga: 1.2mm

1. Intambo Design ^ ^ ^ ^ ^ ^ ^ Enye yezinto ezibalulekile lapho ukhetha ishubhu lesiko ukuklanywa kohlelo lokuvalwa. Amashubhu amaningi amasiko abonisa ukwakheka okujwayelekile kwentambo, njenge-13 mm noma i-16 mm stry ...

I-AIJIREN ngumhlinzeki oholayo wokudla kwe-chromatography okudla, kunganikeza izintambo ze-HPLC, i-HPLC Syringe Filter, i-EPA VOA VIALS, namanye amashubhu athile wokuhlola.
Scope of Isicelo: Ukuhlolwa kwe-COD kwelebhu, isitshalo samakhemikhali, njll

I-AIJIREN ingumkhiqizi omkhulu we-chromatography esebenza eningizimu yeChina. Kune-HPLC VIAL, GC Vial, i-Septum kanye nokuvalwa, i-EPA VIAL, TOC VIAL, TEST TUSTLE, I-Reagent Bottle kanye nesirinji nesirinji esitolo se-AIJIREN. Ungathola konke okudliwayo ngentengo ephelele. Sicela ukhethe okudingekayo kukhathalogi eqondile.

I-Zhejiang Aijiren Technology, Inc. ngumphakeli womhlaba wonke wesayensi, amakhemikhali, okudla kwelebhu, njll. Imikhiqizo yethu emikhulu isebenza nge-chromamputer ye-chromamputer kanye nezihlungi ze-chromatography ezinjengezihlunga, njll; Ukuhlaziywa kwamanzi okufana ne-cod test tube.

I-COD Test Tube ekhiqizwa yi-AIJIREN ivame ukusetshenziselwa ukuhlolwa kwe-oxygen (i-COD) ye-oxygen (i-COD) ngokuvamile, kanye nokuhlolwa kwe-COD kusebenzisa i-oxidant ethile ku-oxidizetance (kufaka phakathi i-organics) kwisampula yamanzi. Njengoba izinga lokushisa nesikhathi sehla, ukuhlolwa kudinga le ndlela kuvame ukusetshenziswa kabanzi njengezilinganiso zokungcola okungokwemvelo.

Amashubhu wokuhlola we-Chemigen Oxygen (COD) angamathuluzi adingekayo wokuhlaziywa kwekhwalithi yamanzi, esetshenziswa kabanzi ekuhlolweni komasipala, kwezimboni nakwezemvelo. Lawa mashubhu akhethekile enzelwe ukubekezelela amazinga okushisa aphezulu kanye nezimo zamakhemikhali ezinokhahlo ngesikhathi senqubo yokugaya i-Cod. Masingene kwizici ezibalulekile kanye nemikhuba emihle yokusebenzisa amashubhu wokuhlola ama-COC.

Ukuhlolwa kwe-Chemical Oxygen (COD) kuyindlela ebalulekile yokuhlola ikhwalithi yamanzi, ikakhulukazi ukwelashwa kwamanzi amdaka kanye nokuqapha imvelo. Amashubhu wokuhlola ama-COC enza lula inqubo, kepha ukusetshenziswa okufanele kubalulekile ekutholeni imiphumela efanele

I-16mm glass cod test tube \ cod yokugaya ishubhu lokuhlola

Ama-POD Reagent Vials atholakala ku: Ukuhlolwa kwe-COD TUBE, i-COD tube testsod tube test, ama-heater we-cod-block 3, ama-eco 6 ama-thermoreactors we-COD.So noma yiziphi izidingo mayelana ne-COD reagent vials, sicela uxhumane ne-AIIJIRET VIALS, sicela uxhumane ne-AIJIRET VIALS, sicela uxhumane ne-AIIIRET VIALS.

I-AIJIREEN TEST TUBE TUBE yenziwa ngengilazi ye-borossilte, enganciphisa izinguquko ze-PH kanye nokungcola okungenziwa kufakwe ingilazi ye-soda lime. Ishubhu lokuhlola ingilazi lisetshenziselwa ukuhlaziya emazingeni okushisa aphezulu kunama-degree angama-130. Kwenziwa kusuka kwisitoreji selebhu ngezinhloso ezahlukahlukene futhi kungabamba cishe noma yini. I-Septa yenziwa nge-PTFE silicon rubber gasket, enomsebenzi oqinile wokubopha futhi ingamelana nokugqwala kwamakhemikhali ahlukahlukene. Isetshenziselwa ukuhlolwa kwamanzi emoyeni; amanzi amdaka ezimboni kanye nokuhlolwa kokulawulwa kwenqubo; kanye nokuhlolwa kwamanzi emvelo. Ama-tubetes asetshenzisiwe aqukethe i-sulfuric acid namanye amakhemikhali, ngakho-ke ama-reagents kumele aphathwe ngokucophelela. Okuqukethwe yipayipi kufanele kuchithwe ngokuya ngezidingo zabaphathi bendawo.

I-AIIJIREN ESUARICY CLICCIMINION TOLIMETRIC TEST TUBE TUBE ingu-16mm Kunokucaciswa okuhlukahlukene, 9ml, 10ml, 12ml, 15ml. Okuzenzakalelayo kungama-25 pcs \ foam Box. Uma udinga ama-PCs ayi-100 \ ibhokisi, sicela uxhumane nomphathi womkhiqizo.

Ukuhlolwa kwe-COD kuyinkomba engcono engcono yokungcola kwe-organic emanzini angcolile wezimboni aqukethe ama-cyanides kanye nezinsimbi ezisindayo. Nganoma yiziphi izidingo ngamashubhu we-COD, ngicela ungitshele.
Igama lomkhiqizo: Amashubhu we-COD ngaphandle kwe-logo
Ubukhulu: 16 * 100mm
Isicelo: Ukuhlaziywa kwamanzi
Izinto ezibonakalayo: Ingilazi engu-3.3
Iphoyinti Lokuncibilika: -7 ℃
Isitifiketi: iso9001

Amashubhu we-Wholeses ama-oxygen ane-oxygen ane-cap evela eChina Aijiren Tech.ijiren ngumhlinzeki oholayo wamashubhu afuna i-oxygen aphefumula eChina.

Ptfe \ abicone cap Septa
Ubungako 100 ngeyunithi ngayinye
Phambilini TOC-40-100
1.ND24 EPA Screw Nexpers (Sula \ Amber).
2. Itholakala ngezinsimbi ezimnyama noma ezimhlophe ngentambo ye-24mm.
3. Itholakala njengezimpawu ezivaliwe ze-top screw screw noma umgodi wesikhungo.
4. Imvelo PTFE \ Imvelo Silicone Septa 22 * ​​3MM
5. Ukuhlaziywa Kwezemvelo
Ukulahlwa: Ukulahlwa

I-16mm glass cod test tube \ cod yokugaya ishubhu lokuhlola
Izinto ezibonakalayo: Ingilazi ephezulu ye-borosilicate
Ngezansi: Round Borning \ Flat Phansi
Usayizi: 16 * 100mm \ 16 * 90mm \ 125mm \ 16 * 150mm
Noma yisiphi isidingo sokudla kwe-chromatography, sicela uxhumane nathi.

Ishubhu lokuhlola i-COD elikhiqizwa yi-AIJIREEN livame ukusetshenziselwa ukuhlolwa kwekhwalithi yamanzi. Ukuze uvumelane namamodeli ahlukene kanye nemikhiqizo yemishini, i-Aijiren yethule ishubhu lokuhlola le-Multi-usayizi we-COD. I-caliber ingumfaniswano 16mm, kepha osayizi bangama-9ml, 10ml, 12ml no-15ml. Ishubhu lokuhlola le-9mL COD linefulethi eliphansi, ishubhu lokuhlola le-10ml COD linefulethi eliphansi kanye ne-12ml kanye ne-15ml ne-cod test tubes inendawo eyindilinga.

I-AIJIREEN TEST TUBE TUBE yenziwa ngengilazi ye-borossilte, enganciphisa izinguquko ze-PH kanye nokungcola okungenziwa kufakwe ingilazi ye-soda lime. Ishubhu lokuhlola ingilazi lisetshenziselwa ukuhlaziya emazingeni okushisa aphezulu kunama-degree angama-130. Kwenziwa kusuka kwisitoreji selebhu ngezinhloso ezahlukahlukene futhi kungabamba cishe noma yini. I-gasket yenziwa nge-PTFE SILICON RUBBER Gasket, enokusebenza okuqinile kokubekwa uphawu futhi ingamelana nokugqwala kwamakhemikhali ahlukahlukene. Ishubhu lokuhlola i-COD lincane ngosayizi nokukhanya kwesisindo. Kungahlolwa ngaphandle kweminye imishini yelabhoratri nochwepheshe; Kuthatha kuphela imizuzu engu-3-5 yokuhlola isampula, ngaphandle kwezinto ezingezekile noma izinsimbi futhi kulula ukusebenza.

Ibanga eliphakeme, ama-oxygen afunwa i-oxygen: Ama-vials agaya amakhemikhali, i-EPE ephezulu i-Oxygen funa (i-COD): I-US EPA evunyelwe indlela yokuhlaziywa kwamanzi asetshenziswayo I-150 \ test iqukethe iMercury.

Ukulethwa okusheshayo, zonke izimpahla zingahanjiswa ngezinsuku ezi-3-7. Imikhiqizo emikhulu ye-Qty isesitokweni kumakhasimende. Okuzenzakalelayo kungama-25 pcs \ foam Box. Uma udinga ama-PCs ayi-100 \ ibhokisi, sicela uxhumane nomphathi womkhiqizo.

Ukusetshenziswa: Ukuhlaziywa kwelebhu
I-LOOR: Okwakhelwe ngokwezifiso
Uphawu lwentengiso: Aijiren
Imvelaphi: China
OEM: Kuyatholakala
Isampula: Kunikezwe ngokukhululeka

Leli ngcebo yesampula linokufika okungama-25 × 95mm ngezansi, okunikeza ukuzinza okuhle kakhulu ezindaweni zokuhlola kanye nemishini yokuhlola. Idizayini ivumela ukuma okungaguquki kuma-spectrophotometer kanye nezinye izinsimbi, ukuqinisekisa ukukala okuphindaphindekayo futhi okunembile.

Okuzenzakalelayo kungama-25 pcs \ foam Box. Uma udinga ama-PCs ayi-100 \ ibhokisi, sicela uxhumane nomphathi womkhiqizo.

Lapho sisebenzisa amashubhu wokuhlola ama-COC, sivame ukufaka isampula ukuthi lihlolwe kwishubhu lokuhlola bese linyakazisa ishubhu ngamandla ukuze simise konke ukulamula. Susa i-cap ye-cod test tube bese ufaka ama-2 ml wesampula usebenzisa i-pipette.

I-COD Test Tube iyatholakala ngamaphakheji amabili ama-PC angama-25 \ ibhokisi nama-PC ayi-100 \ Amakhasimende angathenga ngokuya ngesidingo sabo. Ngokuvamile, sincoma ukuthenga emabhokisini ukuqinisekisa ukulethwa kwezidingo. Ngaphezu kwalokho, i-Aijiren ihlinzeka ngezinsizakalo ezenziwe ngezifiso, ungenza ngezifiso ilogo yenkampani ku-tube.

Amashubhu wokuhlola ama-Aijiren COC enziwe ngengilazi ye-borossilte, enciphisa izinguquko ze-PH kanye nokufuya okungenzeka kokungcola okuvela ku-soda-lime. I-Septa isebenzisa i-abicane rubber rubber rubber, enokusebenza okuqinile kokubopha futhi ingamelana nokugqwala kwamakhemikhali ahlukahlukene. I-COD test tube incane ngosayizi, ukukhanya ngesisindo, futhi ayikwazi ukusetshenziswa kabusha.

Ukuhlolwa kwe-COD kuyinkomba engcono engcono yokungcola kwe-organic emanzini angcolile wezimboni aqukethe ama-cyanides kanye nezinsimbi ezisindayo. Ukuhlolwa kwama-COD kunika impendulo ngokushesha ekushintsheni kwezimo ngaphambi kokugxeka.

Usayizi: 16 * 100mm \ 16 * 90mm \ 125mm \ 16 * 150mm

I-ND24 TOC Screw Nexpers (Sula
Ukulahlwa: Ukulahlwa
Isitifiketi: CE, ISO
Izinto ezibonakalayo: ingilazi
I-Bottle Top: Screw Neck
Umthamo Wokukhiqiza: 50000000pcs \ Isonto
Ukucaciswa: I-100PCS \ Pack
Uphawu lwentengiso: Aijiren

I-AIJIREEN TEST TUBE TUBE yenziwa ngengilazi ye-borossilte, enganciphisa izinguquko ze-PH kanye nokungcola okungenziwa kufakwe ingilazi ye-soda lime.  Ishubhu lokuhlola ingilazi lisetshenziselwa ukuhlaziya emazingeni okushisa aphezulu kunama-degree angama-130.  Kwenziwa kusuka kwisitoreji selebhu ngezinhloso ezahlukahlukene futhi kungabamba cishe noma yini. Ishubhu lokuhlola i-COD lincane ngosayizi nokukhanya kwesisindo. Ama-tubetes asetshenzisiwe aqukethe i-sulfuric acid namanye amakhemikhali, ngakho-ke ama-reagents kumele aphathwe ngokucophelela. 

Ngokuhlolwa kwe-AIJiren COC TUBE, umsebenzisi ngamunye angenza kalula ukutholwa kwamanzi okubucayi kakhulu nokunembile. Isikhathi esidingekayo senqubo yokulinganisa sifinyezwa kakhulu, ikakhulukazi ukuhlaziya okujwayelekile kanye nokulinganisa, ngenkathi kunciphisa kakhulu umthwalo. I-COD test tube iqukethe umthamo oqondile we-reagent. Ngakho-ke, amasheya amaningi ngokweqile agwemeka futhi ukuphepha komsebenzi kuyathuthuka.