Liquid Handling

Safety InformationTechnical InformationSafety InformationHandling of Hazardous SubstancesThe handling of hazardous chemicals, infectious, toxic or radioactive substances andgenetically modified organisms, calls for a high degree of responsibility on the part ofeveryone involved, to ensure personal and environmental protection. The relevant regulationsmust be scrupulously observed including laboratory, professional association,environmental, radiation, waste disposal and generally accepted technical standardsand guidelines (e.g., DIN or ISO).Important information on safety■ Before use, laboratory instrumentsmust be examined by theuser for suitability and functionality.■ Before use, laboratory instrumentsshould be examined forpotential damage, especiallyinstruments subjected to pressureor vacuum (e.g., desiccators,filter flasks, etc.).■ The hazards of working withdefective labware should neverbe under-estimated (e.g., cuts,burns, risk of infection). If a professionalrepair is not practical,properly dispose of such items.■ Always hold pipettes near thesuction end, and carefully insertthe pipette into the adapter ofthe pipette controller until it issecurely and firmly seated. Donot use force. Broken glass cancause injury!■ Instruments to be repaired must becleansed of all residues and be sterilized,as necessary. Radioactively contaminateditems must be decontaminated asprescribed by the radiation protectionauthorities. Volumetric glass instruments(e.g., volumetric flasks, graduated cylinders,etc.) should not be repaired whendamaged. Exposure to heat may result inresidual stress within the glass (greatlyincreasing the probability of breakage),or an uncontrolled cooling process maylead to permanent volume alterations.Cutting down damaged graduated cylindersshortens the distance between theupper graduation mark and the spout, asdefined by DIN, resulting in an increaseddanger of chemicals being spilled.■ Waste must be disposed of according tolocal laws and regulations. This appliesalso to disposable articles. It must notpose a hazard to human beings or theenvironment.■ Please properly dispose of laboratoryglassware, being sure to remove anypotential contaminants. Please note thatlaboratory glassware is not recyclable.Please see page 331 for othersafety information that applyto glass instruments.344info@brand.de