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30.7 x 20.3 cm ⏐ 12.1 x 8.0 in (300dpi)
MATTEIS / LOOK AT SCIENCES / SCIENCE PHOTO LIBRARY MATTEIS / LOOK AT SCIENCES / SCIENCE PHOTO LIBRARY
Food safety reference samples. These samples are used to calibrate machines that are used to analyse food samples to determine their contents and levels of contamination. Photographed at the European Commission's Institute for Reference Materials and Measurements (IRMM), Geel, Belgium. .
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