Furnace Tube Maintenance . 65
Note the positioning of the clamp and exhaust tube with respect to the autosampler when the
furnace is in the lowered position, and with respect to the wall of the cooling area with the
furnace in the cool position:
Cleaning the Furnace Tube
In order to clean the furnace tube, you must first remove the tube from the furnace. Clean the
furnace tube using
one
of the following methods:
1.
Soak and scrub the furnace tube in a strong detergent (e.g., alconox).
2.
Soak the furnace tube in a strong solvent such as cleaning solution (e.g.,
concentrated H
2
SO
4
and K
2
CrO
7
).
WARNING:
Concentrated H
2
SO
4
and K
2
CrO
7
is a very strong, caustic acid
solution. Wear protective gloves and safety glasses and perform this procedure in
a fume hood.
AVERTISSEMENT:
H
2
SO
4
concentré et K
2
CrO
7
est une solution d'acide caustique
très forte. Porter des gants de protection et des lunettes de sécurité et effectuer
cette opération dans une hotte aspirante.
3.
Dip the furnace tube in a dilute hydrogen fluoride (HF) solution (10% solution, 5 min
maximum).
WARNING:
Hydrogen fluoride is a dangerous skin irritant. Wear protective gloves
and safety glasses and perform this procedure in a fume hood.
AVERTISSEMENT:
Le fluorure d'hydrogène est un irritant cutané dangereux.
Porter des gants de protection et des lunettes de sécurité et effectuer cette
opération dans une hotte aspirante.
4.
Rotate the furnace tube over a Bunsen burner (heat up slowly to avoid cracking).
5.
After cleaning, reinstall the furnace tube.
Содержание TGA 8000
Страница 1: ...TGA 8000 Installation and Hardware Guide THERMAL ANALYSIS...
Страница 5: ...5 Safety and Regulatory Information...
Страница 19: ...19 Prepare the Laboratory...
Страница 25: ...25 Installing the TGA 8000...
Страница 55: ...55 TGA 8000 Hardware Maintenance...
Страница 68: ...68 TGA 8000 Installation and Hardware Guide...
Страница 85: ...85 TGA 8000 Autosampler...
