BRAND Dispensette S Instrucciones De Manejo página 47

•
Organic solvents
•
Trifluoroacetic acid
•
Explosive liquids (e.g., carbon disulfide)
•
Suspensions (e.g., activated charcoal) because solid particles may clog or damage the instru-
ment
* Dissolved sodium azide is permitted up to a concentration o 0.1%.
2.6 Storage Conditions
Store the unit and accessories in a cool and dry place in cleaned condition only.
Storage temperature from −20 to 50°C (−4 to 122°F).
2.7 Recommended application range
Select valves with valve springs made of platinum-iridium or tantalum according to the intended use.
The instrument can be used for the following dispensing media:
Dispensing medium
Acetic acid
Ammonia solution
Bromine
Hydrochloric acid
Hydrofluoric acid*
Hydrogen peroxide
Nitric acid
Perchloric acid
Phosphoric acid
Sodium hydroxide, 30%
Sulphuric acid
Water
Legend:
✓ = The device is suitable for the medium
— = The device is not suitable for the medium.
This table has been carefully tested and is based on the most current information available. Always
observe the operating manual of the instrument and the specifications provided by the reagent manu-
facturer. If you need chemical hazard statements that are not on the list, you are welcome to contact
BRAND.
* Hydrofluoric acid slightly attacks the sapphire components (99.99% Al
release aluminum ions. Depending on the analysis method used (inorganic trace analysis), this can
lead to slightly increased aluminum blank values. To reduce the aluminum values, we recommend
discarding three to five doses of 2 ml each before the analysis.
Compounds that contain fluoride (e.g., NaF) attack tantalum.
Last updated: 0419/2
997491
Valve springs: Pt-Ir
✓
✓
✓
✓
✓
—
✓
✓
✓
✓
✓
✓
2 Safety Instructions
Valve springs: Ta
✓
✓
✓
✓
—
✓
✓
✓
✓
—
✓
✓
O ) used in the valves and can
2 3
Operating manual
47