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Stock Photo: resting on specimen with comparison chart Image ID: 20865925   Release  information: N/A   Copyright: Bork   Keywords: acid, analyzing, biotech, chart, chemist, chemistry, close-up, compare, concentration, diabetes, diagnostic, dipstick, exam, glove, hand, immersion, indicator, lab, laboratory, measure, medical, medicine, people, ph, protective, reagents, research, sample, technology, test, test-paper, test-tube, tool, urinary, urine Similar Images Preview test paper one empty an sterile specimen... resting on specimen with... urine sample collection bottles ... dipstick ph a bottle of glucose teststrip ... little specimen cup a single use hypodermic needle...