E ai ki te Ture 0633 o te putanga 2015 o te Rīhua Pharmacopoeia, ka whakarārangihia te tikanga whakamātau arataki o ngā hua penei me te cellulose.

Ko te IVS400 Te Mea Whakamātau Ubbelohde Matomato, i hoahoa me te tohunga Ubbelohde hei matua, e whai ana i ngā tīmataka pānga pērā i te ISO, GB, me te DIN. Ka eke ki te hōputaputa whakamātautau matomato, tae atu ki te ine aunoa, te tātai aunoao, te whakaputanga paraikete aunoa, te horoi aunoa, me te horoi aunoa. Ka taea te tika o te wā e 0.001 hēkona. E whai ana i te āhuarangi wera pakari me te ōrite ki te whara o ≤±0.01℃ mō te whakamātautau, ka tiakina te tika o ngā raraunga whakamātautau.

Tukanga Whakamātautau
1. Wehenga
Wehenga i te tauira mā te whakamahi i te paraihe e tino maroke ana ki te haurua miriona, kātahi ka whakauru ki te pōtae tauira. Whakamahia te DP25 te kaiwhakawhiti rewena aunoa hei whakawhiti i te rewena ki roto i te pōtae tauira.
2. Te Wareware
Whakaurua te pōtae tauira ki roto i te Zhongwang Polymer Dissolver P12, kātahi ka wareware te tauira e ai ki te wāhi wera me te wā e whaihua ana.
3. Te Whakamātautau I Te Tara
Whakairihia te kaitatau ītara IVS400 me te tautai i te wāhi wai hāuta e hiahiatia ana. Tāpirihia te rononga ki te kaitatau ītara Ubbelohde. Whakatuwheratia te pūmanawa hei timata i te whakamātau aunoa me te tātai. Ka roa aunoa ngā raraunga whakamātau ki te rorohiko.
ngā Hua o te Whakamātau
Ka tātai aunoa ngā hua mā te whakamahi i te tauine.
5. Te Horoi i te Kaitatau Ītara Ubbelohde
Muri i te whakaputanga aunoa i te para, ka tāpiri aunoao te horoi kia horoia me te maroke ai te kaitatau ītara.