Capsules and tablets
The count is the trigger
Updated
A dietary supplement needs child-resistant packaging at 250 mg or more of elemental iron in a single package, together with a concentration test. The mass is per package, so the number of capsules in the bottle decides it, and a size chosen for merchandising can move the product in or out of the requirement.
The iron rule
Two tests, and one is per package.
What goes wrong
Named failures, with the cause for each.
Containers
157 packers, and no CR closure on the shelf.
Written from 16 CFR 1700.14(a)(13) and 1700.15. Every page names its source.