Tensile Testing Machine in Pharmaceutical Packaging Inspection | Heat Seal Strength Analysis

Key Technologies in Pharmaceutical Packaging Testing: 7 Critical Applications of Tensile Testing Machines

In the pharmaceutical industry, packaging material testing is vital for ensuring drug safety. As a core quality control instrument, tensile testing machines provide reliable mechanical performance data to validate packaging material integrity. This article examines seven critical applications of tensile testing machines, with a focus on technical implementations such as heat seal strength testing for sealing gaskets.

1. Bottle Flexibility Testing

The mechanical properties of packaging bottles directly impact transportation safety. Tensile testing machines measure deformation parameters under varying pressures, establishing an "elastic modulus-load capacity" data model. Test results guide material selection (e.g., PET, HDPE) to ensure bottles maintain both compressive strength and appropriate flexibility.

2. Drug Delivery Component Validation

  • Nozzle Retention Force: Simulates 30N–50N extraction forces to validate child-resistant locking mechanisms.

  • Integrated Plunger Testing: Ensures consistent sliding resistance (1.5N±0.2N) for precise dosing.

  • Protective Sheath Peel Test: Maintains 0.8–1.2 kgf/cm² peel strength to balance protection and usability.

3. Seal Integrity Evaluation

Following ASTM F88 standards, tensile testing machines achieve 0.01N precision for heat seal strength tests, including:

  • Peel strength at sealing interfaces (≥15N/15mm)

  • Sustained pressure endurance (30-minute hold)

  • High-temperature/humidity environment simulations

4. Accessibility Optimization

Tensile testing machines calibrate opening forces for user-friendly packaging:

  • Blister pack rupture force: 3–8N range

  • Composite film tear strength: <15% longitudinal/transverse variance

  • Child-resistant cap torque: 2.5–4.5N·m compliance

5. Environmental Simulation Testing

Integrated with climate chambers, tensile testers perform:

  • Accelerated aging tests (40°C/75% RH)

  • Low-temperature brittleness tests (-20°C)

  • Vibration-pressure composite assessments

6. Regulatory Compliance

Testing aligns with global standards:

  • USP <671> container performance

  • ISO 15747 pharmaceutical packaging

  • YBB pharmacopoeia material requirements

 

Cell Instruments Co., Ltd. with 10 years of expertise, we deliver pharmaceutical packaging testing solutions to manufacturers. Our engineering team offers customized testing protocols to enhance packaging quality control.

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