Coinnigh an teocht seo ar feadh tréimhse idir 4 agus 16 huaire an chloig (m.sh. thar oíche) chun an t-ábhar carbónúil a bhaint amach agus ansin oscail an fhoirnéis agus lig di fuarú. (feic Nóta (c))
Maintain this temperature for 4 to 16 hours (e.g. overnight) to remove carbonaceous material and then open the furnace and allow to cool (see Note (c)).
Adhain é sa mhufalfhoirnéis (4.1) ag teocht atá faoi bhun 550°C go dtí go mbeidh an t-ábhar carbónúil ar fad imithe.
Ignite in the muffle furnace (4.1) at a temperature below 550°C until all carbonaceous material has completely disappeared.
Coinnigh an teocht sin ar bun ar feadh 4 go 16 uair an chloig (e.g. thar oíche) chun ábhar carbónúil a bhaint agus oscail an fhoirnéis ansin agus lig di fuarú (féach Nóta (d)).
Maintain this temperature for 4 to 16 hours (e.g. overnight) to remove carbonaceous material and then open the furnace and allow to cool (see Note (d)).
Nigh an scagpháipéar ina bhfuil an t-iarmhar dothuaslagtha faoi dhó le huisce fiuchaidh agus cuir i mbreogán grianchloiche nó platanaim é.Adhain an mhufalfhoirnéis (pointe 4.1) ag teocht faoi bhun 550 °C go dtí go mbeidh an t-ábhar carbónúil uile imithe go hiomlán.
Wash the filter paper containing the insoluble residue twice with boiling water and place it in a quartz or platinum crucible.Ignite in the muffle furnace (point 4.1) at a temperature below 550 °C until all carbonaceous material has completely disappeared.