tube

---

Size: 5221px × 3481px
Photo credit: © Bernd Kröger / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: assay, detail, details, experiment, experiments, exploration, fact, finding, inquest, inquiry, inquisition, investigation, lab, laboratory, mass, metal, metals, research, science, sciences, scrutiny, spectrometer, test, tube, v2a, v4a