What material should containers used for the liquid limit test be resistant to?

For the liquid limit test, containers must be resistant to corrosion. This is critical because the materials being tested can include various types of soil, and these soils may have reactive components that can corrode certain types of container materials over time. If the container degrades due to corrosion, it could compromise the integrity of the test results by altering the properties of the soil sample or contaminating it.

The need for resistance to corrosion ensures that the test results remain reliable and accurate, reflecting the true behavior of the soil under the conditions being tested. Hence, using corrosion-resistant materials for containers is vital for maintaining the quality of the liquid limit test, ensuring valid and reproducible results.

While resistance to heat, pressure, and moisture might also be relevant in different testing scenarios, the primary concern for the liquid limit test focuses on preventing corrosion.