Final answer:
The correct answer is option B. New sample containers for solids testing are typically rinsed with demineralized water or isopropyl alcohol to avoid contamination, depending on the specific testing being performed.
Step-by-step explanation:
Prior to use, new sample containers for solids testing are typically rinsed with a substance that does not react with the sample and can remove any contaminants from the container. In the context of this question, each option has a specific purpose:
- Demineralized water might be used when testing for substances where the presence of minerals could impact the results.
- Substances like isopropyl alcohol are often employed for their ability to evaporate quickly without leaving residues.
- Petroleum ether, while used in industry, is better suited for dissolving organic materials and may not be ideal for rinsing containers unless the testing involves similar substances.
Without more context about the specific kind of solids testing being performed, the preferred option for rinsing could vary. However, demineralized water and isopropyl alcohol are common choices for general cleaning to avoid any potential contamination or reaction with the sample.