CPT Shelf Life & Product Protection 3

Question 1

Which standard method is commonly used to determine the seal integrity of flexible packages by immersing them in a dye solution under vacuum?

Accepted Answer

ASTM F1585 dye penetration test

Answer

ASTM F1585 (dye penetration test) involves immersing sealed packages in a colored dye solution under vacuum and inspecting for dye intrusion, detecting seal defects and leaks.

Question 2

When conducting a product compatibility study for a new packaging material, which migration parameter is most important for food-contact applications under FDA regulations?

Accepted Answer

Overall migration limit (OML)

Answer

The Overall Migration Limit (OML) defines the maximum mass of non-volatile substances that may migrate from food-contact packaging into food, a key compliance parameter under FDA and EU food contact regulations.

Question 3

Real-time stability studies differ from accelerated shelf life testing in that they:

Accepted Answer

Store products at intended use conditions for the actual expected shelf life

Answer

Real-time stability studies store products at intended use conditions (e.g., ambient temperature and humidity) for the actual projected shelf life period, providing definitive shelf life confirmation.

Question 4

The critical water content (CWC) of a food product is the moisture level above which:

Accepted Answer

Product quality falls below an acceptable limit

Answer

The critical water content (CWC) is the moisture level at which the product's quality attribute (texture, flavor, microbiological safety) falls below the acceptable minimum, marking the end of shelf life.

Question 5

For pharmaceutical packaging, the ICH Q1A guideline for stability testing defines 'long-term' storage conditions as which temperature and relative humidity combination?

Accepted Answer

25°C / 60% RH

Answer

ICH Q1A defines long-term stability testing at 25°C / 60% RH for pharmaceutical products intended for temperate climates, providing a standardized baseline for shelf life determination.

(CPT) Certified Packaging Technologist Practice Test

(CPT) Certified Packaging Technologist Practice Test

CPT Shelf Life & Product Protection 3