08 TECHNICAL INFORMATION | PRODUCT SECTION
SAFETY INSTRUCTIONS
When used according to our specifications, DURAN® glassware is very safe to use. The appropriate guidelines applicable for the use of special glass in laboratories in the country in question should always be complied with. The following points should, however, be observed in every case: • For safety reasons, before DURAN® laboratory glassware is used it should be checked to ensure that it is suitable for the intended purpose and that it can be used without problem. • Defective laboratory glassware represents a risk (e. g. risk of cuts, burns, infection) that should not be underestimated. If appropriate repairs to any item cannot be carried out or cannot be justified for economic reasons, it must be disposed of in the proper manner. • Only subject DURAN® glassware to sudden temperature changes within the recommended limit for thermal shock resistance (ΔT = 100 K). This means that hot laboratory glassware should not be taken out of a drying cabinet and placed on a cold or even wet laboratory bench. This applies in particular to thick-walled glassware such as filtration flasks and desiccators.
• When assembling apparatus make sure that it stands firmly and is not subjected to stress by using appropriate stands.
DISPOSAL
DURAN® laboratory glass should under no circumstances be disposed of in the domestic glass recycling stream (e. g bottle banks), since its high melting point and different chemistry make it incompatible with other glass cullet (soda-lime glass) for recycling. The correct way to dispose of it is, in principle, to include it with general household waste (residual waste) in accordance with the relevant guidelines, provided that the glass is quite free of any harmful contamination (Waste code no: 17 02 04).
DURAN® LABORATORY GLASS IS ECO-FRIENDLY
DURAN® laboratory glass is made from natural, mineral raw materials. Unlike other materials, laboratory glass, when used properly, will give years of service and this means that it is vastly superior to other materials from an ecological viewpoint too. Depending on its use, DURAN® can be disposed of as household waste and does not need to be dealt with as special waste which may be environmentally harmful. Toxic substances cannot leach out because of the raw materials used. Production processes in our factories have been consistently optimized over recent years to ensure that they are environmentally friendly during the actual manufacturing stage through the minimum usage of valuable resources. Electrical heating and advanced technology in our melting units ensure that no pollutants are released during manufacture in our ultramodern factories which could harm our workers or people living nearby. In addition energy demand is kept as low as possible. The latest waste gas purification equipment is used to avoid emissions which could pollute the environment. A significant investment has been made in an enclosed cooling water recirculation system to cut the amount of fresh water required to a minimum thus helping to conserve vital water resources. We use packaging made from environmentally harmless, recycled paper which can be returned after use to the resource cycle.
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