Samples that are prepared by spiking a known concentration of chemicals into a contaminant-free media, such as water or soil. The laboratory is aware that the sample is a performance evaluation but does not know the chemical concentration levels.
SINGLE-BLIND PERFORMANCE EVALUATION SAMPLES
Meaning of SINGLE-BLIND PERFORMANCE EVALUATION SAMPLES in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012