Final answer:
QC materials should include test substances like aluminum oxides and bauxite, and account for sources of error and temperature ranges. Educational labs might use everyday items like plastic and aluminum cans. Reagents and equipment should have a 20% excess included for student use.
Step-by-step explanation:
Quality Control (QC) materials are essential for ensuring the accuracy and reliability of laboratory results. QC materials should consist of a selection of test substances that can challenge the analytical process just like actual samples. For a standard QC setup, de materials may include known concentrations of aluminum oxides, antimony, bauxite, tungsten, vegetable tannin extracts, and zinc.
Additionally, it's important to consider potential sources of error and the fitness of materials for the range of temperatures they'll be exposed to. Not all tested materials can be used effectively in the same ranges of temperature. For educational laboratories, QC materials might be simpler, such as a piece of plastic, an aluminum can, a metal pencil sharpener, a magnet, wood, chalk, and cloth.
Furthermore, in a procedural context, reagents and equipment needs are often calculated per student teams, with a common excess of around 20% to account for losses or errors during experimentation.