#145309
Chun na himoibreáin agus na tuaslagáin anailíseacha a ullmhú úsáid uisce atá saor ó na caitiain atá le cinneadh, a gheofar trí uisce a dhriogadh faoi dhó i ngloine bórósileacáite nó i stil ghrianchloiche nó trína chóireáil faoi dhó ar roisín malartaithe iarainn.
For preparation of the reagents and analytical solutions use water free from the cations to be determined, obtained either by double distilling water in a borosilicate glass or quartz still or by double treatment on ion exchange resin.