Disposable polystyrene ps beakers feature four-way pour spouts and are available in sizes ranging from 5ml to 1000ml volumes. The beakers can withstand temperatures up to 200&176f and offer excellent chemical resistance to dilute or weak acids, aqueous solutions, alcohols and bases. The 5ml, 10ml, 20ml and 50ml size beakers are excellent for use with atomic absorption and flame photometers. features polystyrene ps four way pour spouts offer greater flexibility disposable and economical