1. Te ahua:
Tirotiro kanohi i raro i te marama marara maori.
2. Viscosity:
Paunatia te 400 ml te ipurau whakakorikori teitei, ka paunatia te 294 g wai ki roto, whakahurihia te whakaranu, katahi ka tapirihia te 6.0 g o te etera cellulose kua paunatia;te whakaoho tonu kia rewa katoa, ka hanga he otinga 2%;Whai muri i te 3-4 haora i te pāmahana whakamātautau (20±2) ℃;whakamahia te viscometer hurihuri NDJ-1 ki te whakamatautau, ka tohua te tau rotor viscometer tika me te tere rotor i te wa o te whakamatautau.Tahurihia te rotor ka maka ki roto i te otinga ka waiho kia tu mo te 3-5 meneti;whakakāhia te whakakā ka tatari kia tau te uara, ka tuhi i te hua.Tuhipoka: (MC 40,000, 60,000, 75,000) Tīpakohia te rotor Nama 4 me te tere o te 6 hurihanga.
3. Te ahua memeha ki te wai:
Tirohia te tukanga me te tere o te whakakore i te wa e whirihora ana hei otinga 2%.
4. ihirangi pungarehu:
Tangohia te ipu porcelain ka tahuna ki roto i te oumu koropuke hoiho, whakamatao i roto i te desiccator, ka paunatia kia noho tonu te taumaha.Kia tika te pauna (5~10) karamu o te tauira i roto i te ipu, ka tunuhia te parai ki runga i te oumu hiko, a, ka tae ki te tino warohanga, hoatu ki roto i te oumu koropuke hoiho mo te (3~4) haora, katahi ka maka. i roto i te desiccator hei whakamatao.Paunatia tae noa ki te taumaha tonu.Tātaitanga pungarehu (X):
X = (m2-m1) / m0×100
I roto i te tauira: m1 ——te papatipu o te ipu, g;
m2 ——Tapeke papatipu o te ipu me te pungarehu i muri i te mura, g;
m0 ——te papatipu o te tauira, g;
5. Te nui o te wai (ka ngaro i te whakamaroke):
Paunatia te tauira 5.0g ki runga i te paepae o te kaitirotiro makuku tere ka whakatika tika ki te tohu kore.Whakanuia te pāmahana me te whakatika i te pāmahana ki te (105±3) ℃.Ki te kore te tauine whakaatu e neke, tuhia te uara m1 (ko te 5mg te tika o te pauna).
Ihirangi wai (ngaro i te whakamaroke X (%)) tātaitanga:
X = (m1 / 5.0) × 100
Wā tuku: Noema-02-2021