30.00 Committee draft (CD) registered Oct 6, 2023
ISO
ISO/TC 226 Materials for the production of primary aluminium
International Standard
Specifies a conventional gravimetric method for the determination. A test portion ist reated with quinoline in a beaker at 70 to 80 °C for 15 to 20 min. Then the dissolved test portion and the residue are brought to a Hartley funnel fitted with a filter pad, and are filtered. The washed and dried residue on the filter pad is weighed.
PUBLISHED
ISO 6791:1981
IN_DEVELOPMENT
ISO/CD 6791
30.00
Committee draft (CD) registered
Oct 6, 2023