When performing the sample reduction, care must be taken in order to ensure the split test portion has a character similar to that of the field sample.

• A. True
• B. False
• C. Not specified
• D. Sometimes

Answer: (A)

Accurate sample reduction hinges on keeping the split test portion representative of the field sample. The portion used for testing should mirror the field material in particle size distribution, moisture content, and binder presence so the lab results reflect what’s actually in place. If the split becomes biased—due to segregation, loss of fines, moisture or temperature changes during handling—the test results won’t match field conditions. Using proper reduction methods and thorough mixing minimizes these biases and keeps the split portion truly comparable to the original sample. This is why the statement is true.