CPP Packaging Testing & Performance 2

Question 1

Which test method is used to determine the top-load compressive strength of a corrugated fiberboard box (ECT)?

Accepted Answer

ASTM D642 measures the compressive strength of shipping containers under top-load conditions

Answer

ASTM D642 is the standard test method for determining the compressive resistance of shipping containers by applying a uniform top load to the container.

Question 2

Oxygen Transmission Rate (OTR) testing of packaging films is critical primarily for:

Accepted Answer

Determining shelf life of oxygen-sensitive food products

Answer

OTR measures the amount of oxygen that permeates through a packaging film per unit area per unit time, which directly determines how well the package will protect oxygen-sensitive contents and predict shelf life.

Question 3

The Moisture Vapor Transmission Rate (MVTR) is expressed in which unit of measurement?

Accepted Answer

g/m²/day

Answer

MVTR is expressed as grams of water vapor transmitted per square meter of film area per day, quantifying how much moisture passes through packaging material.

Question 4

In a peel strength test for packaging seals, what does a higher peel force value indicate?

Accepted Answer

A stronger seal that requires more force to open

Answer

Peel strength measures the force required to separate two bonded surfaces of a package seal; a higher peel force indicates a stronger bond that is more resistant to unintended opening.

Question 5

Before conducting climate-sensitive packaging tests, samples are typically conditioned at 23°C and 50% relative humidity. What is the purpose of this pre-conditioning step?

Accepted Answer

To equilibrate samples to a standard reference state so results are reproducible and comparable

Answer

Pre-conditioning standardizes the moisture content of samples, eliminating variability caused by different ambient conditions and ensuring that test results are consistent and comparable across laboratories.

(CPP) Certified Packaging Professional Practice Test

(CPP) Certified Packaging Professional Practice Test

CPP Packaging Testing & Performance 2