What percentage of children should NOT be able to gain entry to child resistant packaging within 10 minutes, according to the child resistant packaging test?

In the context of child-resistant packaging standards, the goal is to ensure that such packaging effectively protects children from accidental exposure to potentially harmful substances. The child-resistant packaging test is designed to assess the effectiveness of packaging by determining how many children can successfully open it within a given time frame.

For child-resistant packaging, the standard stipulates that no more than 15% of children tested should be able to gain access to the contents within 5 minutes, and similarly, within a longer duration, often cited as 10 minutes in relevant regulations. Given that the question specifies the percentage of children who should NOT be able to gain entry within that time frame, the goal is clearly set to limit access significantly.

The option reflecting a higher standard, such as 80%, indicates a robust level of child resistance, meaning only a small fraction should successfully open the packaging. This level of effectiveness aligns with the regulatory benchmarks aimed at protecting children from hazards. Using a target percentage that is too high (such as 90%) could create an impractical standard for manufacturers, while a lower target (like 70% or 75%) does not meet the stringent safety expectations that are part of child-resistant packaging requirements.

Thus, determining that 80% should not be able to