Dispensette® S Bottletop Dispenser Technical Data

Operating limitations (all instruments)

Liquids which form deposits may make the piston difficult to move or may cause jamming (e.g., crystallizing solutions or concentrated alkaline solutions). When dispensing inflammable media, make sure to avoid the buildup of static charge, (e.g., do not dispense into plastic vessels; do not wipe instruments with a dry cloth). The Dispensette® is designed for general laboratory applications and complies with the relevant standards, e.g., DIN EN ISO 8655. Compatibility of the instrument for a specific application (e.g., trace material analysis, food sector, etc.) must be checked by the user. Approvals for specific applications, (e.g., for production and administration of food, pharmaceuticals and cosmetics) are not available.

Items supplied

Each Dispensette® S, Dispensette® S Organic, Dispensette® S Trace Analysis includes:

  • Certificate of performance
  • Discharge tube
  • Valve mounting/calibration tool
  • Adapters and filling tube
  • Operating manual
  • One-year warranty

Supplied adapters & filling tubes

Nominal Volume, mL Adapter for bottle thread, mm Filling tube length, mm
For Dispensette® S & Dispensette® S Organic (PP)
1, 2, 5, 10, 25, 50, 100 24, 28, 33, 38, S40, 33, 38, S40 125-240, 170-330
For Dispensette® S Trace Analysis (ETFE, PTFE*)
10 28, 33, S40* 125-240

Limitations of use (all instruments)

This instrument is designed for dispensing liquids, observing the following physical limits:

  • Use between +15°C and +40°C (59°F and 104°F) of instrument and reagent.
  • Vapor pressure up to max. 600mbar. Aspirate slowly above 300mbar, in order to prevent the liquid from boiling.
  • Kinematic viscosity up to 500mm2/s (dynamic viscosity [mPas] = kinematic viscosity [mm2/s] x density [g/cm3]).
  • Density: Dispensette® S/Dispensette® S Organic: up to 2.2g/cm3 and Dispensette® S Trace Analysis up to 3.8g/cm3.

Operating exclusions – Dispensette® S

Never use the Dispensette® S with:

  • Liquids attacking Al2O3 -ceramic, ETFE, FEP, PFA and PTFE (e.g., dissolved sodium azide*).
  • Liquids attacking borosilicate glass (e.g., hydrofluoric acid).
  • Liquids which are decomposed catalytically by platinum-iridium (e.g., H2O2 ).
  • Hydrochloric acid > 20% and nitric acid > 30%.
  • Tetrahydrofuran.
  • Trifluoroacetic acid.
  • Explosive liquids (e.g., carbon disulfide).
  • Suspensions (e.g., of charcoal) as solid particles may clog or damage the instrument.
  • Liquids attacking PP (screw cap).

Operating exclusions – Dispensette® S Organic

Never use the Dispensette® S Organic with:

  • Liquids attacking Al2 O3 -ceramic, tantalum, ETFE, FEP, PFA and PTFE (e.g., dissolved sodium azide*).
  • Liquids attacking borosilicate glass (e.g., hydrofluoric acid).
  • Bases and saline solutions.
  • Explosive liquids (e.g., carbon disulfide).
  • Suspensions (e.g., of charcoal) as solid particles may clog or damage the instrument.
  • Liquids attacking PP (screw cap)

Operating exclusions – Dispensette® S Trace Analysis

Never use the Dispensette® S Trace Analysis with:

  • Liquids attacking Al2 O3 sapphire or fluoroplastics like ETFE, FEP, PFA, PCTFE, PTFA and PTFE (e.g., dissolved sodium azide*).
  • Liquids which are decomposed catalytically by platinum-iridium (e.g., H2O2) or tantalum, depending on the construction of the instrument.
  • Organic solvents.
  • Trifluoroacetic acid.
  • Explosive liquids (e.g., carbon disulfide).
  • Suspensions (e.g., of charcoal) as solid particles may clog or damage the instrument.
  • The Dispensette® S Trace Analysis must not be autoclaved.

Materials