Storage Conditions; Recommended Application Range - BRAND Dispensette S Mode D'emploi

3 Safety Instructions
3.5.2 Dispensette S Organic
Never use Dispensette
• Liquids attacking Al
lum, ETFE, FEP, PFA and PTFE (e.g., dis-
solved sodium azide*)
• Liquids attacking borosilicate glass (e.g.,
hydrofluoric acid)
• Bases and saline solutions
• Explosive liquids
* Dissolved sodium azide permitted up to a concentration of max. 0.1 %.
** Alternatively, ETFE/PTFE bottle adapters and ETFE/PTFE screw caps can be used (accessories from
Accessories/spare parts, p. 66). The suitability of ETFE/PTFE bottle adapters and ETFE/PTFE screw
caps must be checked by the user.

3.6 Storage Conditions

Store the instrument and accessories only in cleaned condition in a cool and dry place.
Storage temperature: from -20 °C to 50 °C (from -4 °F to 122 °F).

3.7 Recommended Application Range

®
Dispensette S offers a broad range of applications for dispensing aggressive reagents, including con-
centrated acids (e.g., H
solvents.
®
Dispensette S Organic is ideal for dispensing organic solvents including chlorinated and fluorinated
hydrocarbons (e.g., trichlorotrifluoroethane and dichloromethane), concentrated acids (e.g., HCl and
HNO ), trifluoroacetic acid (TFA), tetrahydofuran (THF) and peroxides.
3
Instrument selection
For guidelines on selecting the right dispenser observe the corresponding Operating Exclusions and
the 'Dispenser selection chart' on the next page.
Dispensing hydrofluoric acid (HF)
For dispensing hydrofluoric acid (HF), we recommend the use of the Dispensette
bottle-top dispenser with platinum-iridium valve spring (see separate operating manual).
42
Operating manual
®
S Organic for:
O -ceramic, tanta-
2 3
PO , H SO ), bases (e.g., NaOH, KOH), saline solutions, as well as many polar
3 4 2 4
• Carbon disulfide
• Suspensions (e.g., of charcoal) as solid
particles may clog or damage the instru-
ment
• Liquids attacking PP (screw cap and bot-
tle adapter)**
NOTICE
NOTICE
®
S Trace Analysis
9974 90