Operating Exclusions; Storage Conditions - VWR Avantor 612-6857 Manual De Instrucciones

● Liquids, which form deposits may make the piston difficult to move or may cause
jamming (e.g.,) crystallizing solutions or concentrated alkaline solutions). If the piston
becomes difficult to move, the instrument should be cleaned immediately.
● 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.

Operating Exclusions

Never use with-
● Liquids attacking FEP, PFA and PTFE (e.g. dissolved sodium azide*)
● Liquids attacking borosilicate glass (e.g. hydrofluoric acid)
● Hydrochloric acid > 40% | 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 (cap)**
* Dissolved sodium azide permitted up to a concentration of max. 0.1%.

Storage Conditions

● Store the instrument and accessories only in clean conditions in a cool and dry place.
● Storage temperature: from – 20°C to +50°C (from – 4°F to 122°F)
Operation
● Always wear protective gloves when touching the instrument or the bottle, especially
when using dangerous liquids. When mounted to a reagent bottle, always carry the
instrument as shown in the figure (5).
● Never press down the piston when the cap is on. Avoid splashing the reagent.
The reagent can drip out from the discharge tube and cap.
(Fig. 6)
9. vwr.com I Instruction manual VWR Bottle Top Dispenser with Recirculation Valve
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