Used in scientific, technical, and testing contexts for a physical sample or specimen taken for analysis or examination.
We analyzed the sample in the laboratory.
Please confirm that this specimen is not contaminated.
They collected a sample from the soil and analyzed it.
I had this sample analyzed at the laboratory.
The sample needs to be prepared before the experiment.
検体 is used specifically for biological or medical specimens submitted for testing, while 試料 is the broader scientific/technical term for any test sample.
試料 (a physical test sample) and 資料 (reference materials or data) are pronounced identically but refer to completely different things.
sample chamber
Compound of 試 (test, try) and 料 (material, fee). The combination conveys 'material for testing'.