Glassware 1031 All prices are indicative and exclude VAT. Visit www.dulis.nl General information hBefore handling, make sure the product is in good condition (not scratched, cracked or damaged) hAny defect can change the characteristics of the glass and lead to breakage hUse a suitable plug (correct diameter), never push it in too hard hAlways support large containers from below Heating hBorosilicate glass can be placed in the microwave hWhen using a hot plate make sure the plate is larger than the base of the container to be heated hNever place glassware on an already hot surface, always heat gradually starting at room temperature Glassware in the laboratory hAlso called standard glass, chemical glass or white glass hGood chemical and physical properties hComposed of approximately 70% silica, 13% soda, 12% limestone hHigh coefficient of expansion, sensitive to heat variations hNot autoclavable hBetter flow, larger pores and better viscosity for clean meniscus formation, ideal for volumetry hUse: products that have to withstand short chemical stress and are not subject to thermal stress The different types of glass Soda-lime glass hAlso called borosilicate glass 3.3 hVery good chemical and physical properties hConsists of approximately 80% silica, 13% boron oxide, 4% soda ash hLow coefficient of expansion, very high resistance to heat and temperature changes hUse: applications requiring very good chemical resistance, heat resistance, thermal shock resistance and high mechanical stability; used in the chemical and pharmaceutical industries and in research laboratories Borosilicate glass hBorosilicate glass 3.3 hEP and USP compliant for borosilicate glass type I for the pharmaceutical industry hComplies with ISO 3585 hExceptionally consistent and reproducible quality hRegular thickness hImproved mechanical stability and resistance to temperature changes hIncreased safety in use, longer product life and reduced overall costs hTraceability code: eight-digit number used as a traceability code to access all important production data hBatch certificates hUse: storage, sample preparation, transport DURAN® Glass hBorosilicate glass 3.3 hEP and USP compliant for borosilicate glass type I for the pharmaceutical industry hComplies with ISO 3585 hExcellent thermal properties at both high and low temperatures hRegular thickness hBatch number, an eight-digit code printed on the glass, for traceability of information from production hBatch certificates hUse: storage, sample preparation, transport PYREX® Glass Maintenance and use ››› The following are general recommendations for the care and use of glassware in the laboratory. ››› Correct handling optimises the performance and preservation of your glassware Cleaning hWash glassware before first use hClean the glassware immediately after use to avoid solidification of residues hUse a mild or non-abrasive detergent and a soft, flexible brush or sponge hAll glassware can also be cleaned in the dishwasher Sterilization hBefore any sterilisation, the glassware must be thoroughly cleaned hIt is recommended to use a 20 minute cycle at 121 °C and 1 bar hAlways unscrew the caps of bottles or tubes before autoclaving. Any material obstructing the opening may cause deformation or destruction of the plastic Use under vacuum and pressure hUse only glassware recommended specifically for vacuum and pressure applications hNever subject glassware to sudden changes in pressure hAlways apply and release pressure and vacuum gradually Recycling and disposal hSoda-lime glass can be softened and remelted many times, and is perfectly suitable for recycling, in the same way as household glass, after any necessary decontamination procedures hBorosilicate glass should be disposed of with household waste provided that the glass is not chemically contaminated hDispose of glass in a dedicated, puncture-resistant waste bin
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