Te Kaupapa Hua:
Ko te tauira wai, te otinga nakunaku pāhare pāporo dichromate, te otinga hiriwa whanariki (te hiriwa whanariki hei whakakorikori hei hono atu i te waikura ngako mekameka tika) me te ranunga waikawa whanariki ka whakamahanahia ki te 175 ℃, ka whakamahia te waikura katote dichromate ki te otinga waikura katote o te mea waro i muri i te huringa tae, ka kitea e te tātari ngā huringa tae, ka hurihia te putanga o te uara BOD me te kai o te ihirangi katote dichromate o te nui o te mea waro ka taea te whakakorikori.
Ngā Tawhā Hangarau:
| Kāore. | Ingoa | Ngā Tawhā Hangarau |
| 1 | Awhe Taupānga | He pai tēnei hua mō ngā wai para me te hiahia matū hāora i waenga i te 10~2000mg/L me te kukū hauota iti iho i te 2.5g/L Cl-. Ka taea te whakawhānui ake ki ngā wai para me te kukū hauota iti iho i te 20g/L Cl- e ai ki te hiahia tuturu a ngā kiritaki. |
| 2 | Ngā Tikanga Whakamātautau | I nakunaku te pāhare pākawa dichromate i te pāmahana teitei me te whakatau tae. |
| 3 | Awhe ine | 10~2000mg/rita |
| 4 | Te rohe o raro o te Kitenga | 3 |
| 5 | Whakataunga | 0.1 |
| 6 | Te tika | ±10% ±8mg/L rānei (Tangohia te uara nui ake) |
| 7 | Te āheinga ki te whakahoki anō | 10%, 6mg/L rānei (Tangohia te uara nui ake) |
| 8 | Kore Te Rerenga | ±5mg/L |
| 9 | Te Āputaputa o te Whānuitanga | 10% |
| 10 | Huringa ine | E 20 meneti te iti rawa. I runga i te tauira wai tuturu, ka taea te whakarite i te wā nakunaku mai i te 5 ki te 120 meneti. |
| 11 | Wā tauira | Ka taea te whakarite i te wā (ka taea te whakarite), te haora whakauru, te aratau ine rānei. |
| 12 | Huringa whakatikatika | Whakatikatika aunoa (ka taea te whakarite i te 1-99 rā), ka taea te whakarite i te whakatikatika ā-ringa e ai ki ngā tauira wai tuturu. |
| 13 | Huringa tiaki | Neke atu i te kotahi marama te wā tiaki, tata ki te 30 meneti i ia wā. |
| 14 | Te mahi a te tangata me te mīhini | Whakaaturanga mata pa me te whakauru tohutohu. |
| 15 | Te tiakitanga tirotiro-ā-koe | Ka taea te tātaritanga whaiaro i te āhua mahi, kāore e ngaro ngā raraunga i te āhua rerekē, i te āhua ngoikore rānei o te hiko. Ka whakakorea aunoatia ngā toenga o ngā matū tauhohenga, ā, ka tīmata anō te mahi i muri i te tautuhi anō āhua rerekē, te āhua ngoikore rānei o te hiko. |
| 16 | Te rokiroki raraunga | Kāore i te iti iho i te hawhe tau te roa o te rokiroki raraunga |
| 17 | Atanga whakauru | Huri rahinga |
| 18 | Atanga putanga | E rua ngā putanga matihiko RS485, Kotahi te putanga anaro 4-20mA |
| 19 | Ngā Tikanga Mahi | Te mahi i roto i te whare; pāmahana 5-28℃; haumākū whanaunga ≤90% (kāore he hauhautanga, kāore he tomairangi) |
| 20 | Te Tuku Hiko me te Whakamahinga | AC230±10%V, 50~60Hz, 5A |
| 21 | Ngā Ahu | 355×400×600(mm) |
