Final answer:
The bottled water sample must be tested thoroughly by a certified lab, examining clarity and presence of particles. The FDA regulations also require disinfectant efficacy validation through use-dilution tests.
Step-by-step explanation:
The bottled water sample must be tested thoroughly by a certified lab. The lab must have the necessary equipment and expertise to perform the required tests and ensure the safety and quality of the water.
The FDA regulations require testing for various parameters, including the clarity of the water, presence of particles, and validation of disinfectant efficacy. The sample is collected in a clear bottle and examined for clarity and presence of particles under light.
The Association of Official Agricultural Chemists International (AOAC) sets standards for testing disinfectants. Disinfectant manufacturers perform use-dilution tests to validate the efficacy claims for their products, as required by the EPA.