marca de laboratório
1. A mark, label, or identification made on a substance or object in a laboratory setting to indicate origin, composition, or experimental purpose
The lab mark on the chemical sample indicated it was tested on January 15th.
A marca de laboratório na amostra química indicava que havia sido testada em 15 de janeiro.
2. A distinctive symbol or notation used in scientific documentation to track laboratory specimens or experimental data
Each test tube received a lab mark for proper identification during the experiment.
Cada tubo de ensaio recebeu uma marca de laboratório para identificação adequada durante o experimento.
3. Evidence or trace left by laboratory procedures on a material or surface
The forensic team found lab marks on the evidence suggesting prior analysis.
A equipe forense encontrou marcas de laboratório nas evidências sugerindo análise prévia.
This term is primarily used in scientific, medical, and forensic contexts in both English and Portuguese-speaking countries. It reflects the standardized practices of laboratory documentation and specimen management, which are critical in maintaining scientific integrity and traceability of experimental materials.
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