Introduction

ASTM D882 is a widely recognized standard developed by ASTM International for determining the tensile properties of

 thin plastic sheeting and films (thickness ≤ 1 mm). This test method is essential for evaluating material performance

 in applications such as packaging, medical films, and agricultural covers.

Testing instrument：PMT-05 Medical packaging physical performance tester

Scope and Significance

The standard measures key tensile properties, including:

Tensile Strength – Maximum stress a material withstands before breaking.

Elongation at Break – The extent to which a material stretches before failure.

Modulus of Elasticity – Material stiffness under tension.

These properties help manufacturers ensure product durability, flexibility, and suitability for specific uses.

Test Procedure

Sample Preparation – Specimens are cut into specific shapes (e.g., dumbbell or straight strips).

Conditioning – Samples are conditioned at standard temperature and humidity (e.g., 23°C ± 2°C, 50% ± 5% RH).

Testing – A universal testing machine grips the specimen and applies tension at a controlled speed (e.g., 5–500 mm/min) 

until failure.

Data Analysis – Stress-strain curves are generated to determine tensile strength, elongation, and modulus.

Applications

ASTM D882 is used in industries such as:

Packaging – Ensures films withstand handling and loads.

Medical Films – Verifies strength and elongation for safety.

Agriculture – Assesses durability of mulch films.

Conclusion

ASTM D882 provides a reliable method for evaluating the tensile performance of plastic films, aiding in quality control 

and material selection. Compliance ensures products meet industry standards for strength and flexibility.