Taupānga:

Ko te waikawa nitric he rauemi timatanga mo te hanga maniua me nga matū.Ka whakamahia te waikawa nitric diluted mo te whakakore me te tarai konganuku Pepa Raraunga Hua
Ko tenei wai taumaha, maamaa, paku kowhai ranei he tino paitini, he wera nui ina pa ki te kiri.He mea hanga na roto i te whakamaaramatanga o te konanuku kawakawa pākawa me te waikawa pungatara.Ko te huinga o te waikawa nitric me te waikawa pungatara i whakamahia hei huri i te miro mania ki te cellulose nitrate.I whakamahia te waikawa nitric i roto i te tukanga pereti maku hei taapiri ki nga kaihanga ferrous sulfate hei whakatairanga i te tae ahua ma ake mo nga ambrotypes me te ferrotypes.I taapirihia ano hei whakaheke i te pH o te pati hiriwa mo nga pereti collodion.Ko te taapiri i te waikawa ki te pati hiriwa ka iti ake te aro o nga pereti collodion ki te marama, na te mea he pai te whakaiti i te kohu ahua kore.