Like beakers, Erlenmeyer flasks are not normally suitable for accurate volumetric measurements. A laboratory tripod is a three-legged platform used to support flasks and beakers. The main usage is to support or hold the flasks and beakers during experiments. Typical shapes are fruitstands, shallow bowls and beakers. These, in the shapes of beakers, bowls and compartmentalised boxes, are distinctive. Few of the burnished beakers and bowls found were decorated. However, not all Beakers were drinking cups. These are sometimes called Berzelius beakers and are mostly used for titration. A common use for polypropylene beakers is gamma spectral analysis of liquid and solid samples. Pottery consists mainly of egg-shaped beakers with pronounced rims. Smaller devices to check food for radioactivity were shown, testing food placed in beakers. The child usually notes that the beakers do contain the same amount of liquid. Significant artefacts were discovered, including several beakers and an important lead necklace. Artwork includes burial masks, beakers and metal vessels that previous cultures traditionally made of clay. Most British beakers come from funerary contexts.