The department shall:
In compliance with rules of the department, tests may be made on representative samples of such devices, and the lots of which samples are representative shall be held to be correct or incorrect on the basis of the results of the inspection and tests of such samples.
The provisions of this chapter and rules adopted thereunder notwithstanding, scales routinely used by providers of weight control services shall not be considered commercial weights and measures when used to determine human weight or to compute charges or payments for services rendered by such providers on the basis of said weight, measure, or count.
Fla. Stat. § 531.41