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Test Methods

Test Methods

Backed by our expertise in technologies for pharmaceutical inspection, we thoroughly analyze your manufacturing process to design a tailored inspection solution that fits your specific needs.

Visual Image Processing With nearly 20 years of experience in pharmaceutical inspection, Z-Zone has built a powerful image database sourced from a wide range of equipment and products.

Vacuum Decay Vacuum decay leak detection is a non-destructive method used to verify the integrity of sealed packaging. The core principle involves detecting pressure changes in a vacuum environment to identify potential leaks.

High Voltage Leak Detection (HVLD) The system applies a high-frequency, high-voltage power source (denoted as V in the diagram), connected to both the emitter and receiver electrodes.

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Inspection Equipment

Visual Inspection Machines

Leak Testing Machines

Visual Inspection & Leak Testing Machine

Filter Applications

Liquid Dosage

We provide advanced automatic visual inspection and leak testing systems tailored for liquid pharmaceutical products, including injectables, eye drops, and oral solutions in ampoules, vials, prefilled syringes, and bottles.

Freeze-Dried Powder

We provide integrated automatic visual inspection and leak testing solutions for lyophilized (freeze-dried) powder products in vials (2–30 ml), suitable for both molded and tubular vial formats.