nNeke atu i te 30 ngā tohu tae, tae atu ki te pt-co, Gardner, Saybolt, Haina, Te Hononga o Amerika, Ngā paerewa Pharmacopoeia o Ūropi
nMā te whakatikatika atamai kore e ine tika ai te △E*ab≤0.01
nKa whakaitihia te iti rawa o te tāpiri wai ki te 1ml, 10mm me te 50mm cuvet.te he paerewa, me te kūwete 33mm me te 100mmte he kōwhiringa
nIne tere, ā, kotahi me te hawhe hēkona anake te roa o te ine kotahi
nMā te hoahoa o te tāke tauira whakamahana (tae atu ki te 90°C) ka māia te rere o te tauira.
nKo te mata pa 7-inihikia māmā ake te whakamahi i te taputapu ā, ka taea e te taputapu te penapena neke atu i te 100,000 ngā raraunga
