When the instrument is correctly used, the dispensed liquid comes into contact with only the following chemically resistant materials: Borosilicate glass, Al2O3, ETFE, PFA, FEP, PTFE, platinum-iridium; PP (closure cap).
Never use the bottle-top dispenser with
-Liquids attacking ETFE, FEP, PFA, PTFE or Al2O3(e.g., dissolved sodium azide)
-The liquid that corrodes optical glass: hydrofluoric acid (HF)
-Liquid of platinum-iridium alloy for catalytic decomposition (H2O2)
-Nicotinic acid, trifluoroacetic acid, tetrahydrofuran
-Explosive liquid: carbon disulfide
-Suspension: Carbon-containing solution
Concentrated hydrochloric acid and concentrated nitric acid, chlorinated and fluorinated hydrocarbons, or chemical combinations that form deposits may make the piston difficult to move or may cause jamming (e.g., highly concentrated alkaline solutions, highly crystallizing solutions or concentrated saline solutions).
Make sure to avoid the buildup of static charge, when dispensing inflammable media, e.g., do not wipe instruments with a dry cloth; do not dispense into plastic vessels. If a sign of a potential malfunction is founded, for instance, the piston difficult to move, please do not use force. For the compatibility of the bottle-top dispenser for this special application (e.g., trace material analysis), the operator must check the User Manual or contact the manufacturer directly.