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 D3078 bubble emission test

Answer

TAPPI T441 water absorption test

Answer

ISO 11607 bioburden test

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

Tensile strength at break

Answer

Heat deflection temperature

Answer

Coefficient of friction (COF)

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

Use only high temperature and humidity

Answer

Rely exclusively on mathematical models

Answer

Test only moisture transmission, not oxidation

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

Maillard browning reactions cease

Answer

Oxygen permeation increases

Answer

Seal integrity is compromised

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

30°C / 65% RH

Answer

40°C / 75% RH

Answer

15°C / 40% RH

Question 6

Which packaging test method is used to evaluate the closure integrity of rigid containers by measuring the torque required to remove the cap?

Accepted Answer

Closure removal torque test

Answer

Burst strength test

Answer

Compression test

Answer

Top-load test

Question 7

In the context of MAP for bakery products, CO₂ is flushed into the package primarily to:

Accepted Answer

Inhibit mold and rope-forming bacteria growth

Answer

Maintain bright color of the product

Answer

Prevent oxidative rancidity of fats

Answer

Extend crust crispness