Package Leak Test

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Verify & Validate Every Seal with Our Package Leak Test!

Package leak testing is an essential quality control measure that assesses packaging materials’ ability to prevent leaks, ensuring their integrity and safeguarding contents from contamination. Whether in food, pharmaceuticals, or consumer goods, leak testing is crucial to avoid costly issues and uphold your brand’s reputation.

Leak and seal strength C660M

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The Leak and Seal Strength C660M in packaging industry is professionally applicable for quantitatively determining seal strength, seal quality, burst pressure, seal integrity, compression resistance, torsion force, and joint/disengaging force of various flexible packages, aseptic packages, plastic tamper-evident closures, flexible tubes, caps, and other materials.

The C660M Leak and Seal Strength Tester offers multiple test modes and an automatic testing process. It features innovative real-time monitoring of gas inlet flow and a brand new patented intelligent touch operating system. Designed for precision and ease of use.

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Features

Vacuum Leak Tester C660B

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C660B Vacuum Leak Tester is a testing instrument designed in accordance with ASTM D3078, specifically utilising the bubble emission method. It’s intended for determining leakage in various types of packaging, including those used for food, medical instruments, daily chemical products, automobiles, electronic components, stationery, and other industrial items. This device plays a crucial role in ensuring the integrity and quality of packaged goods.

The C660B Leak Tester features a Touch Screen Panel to set parameters for vacuum degree, retention time and Cyclic Tests ensuring accurate test data. It uses top-quality components from world-renowned brands for reliable performance. Specimens are tested under preset vacuum conditions with automatic constant pressure compensation.

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Technical Specification

C660M Leak & Seal Strength Tester and the C660B Vacuum Leak Tester Technical Specification

FAQ's

Frequently Asked Questions (FAQs) – Permeability Testing Instruments

A Package Leak Tester is a precision instrument used to verify the seal integrity and leakage resistance of packaging materials. It detects weak or failed seals before products reach the market — preventing contamination, spoilage, product recalls, and regulatory non-compliance. It is essential for industries such as food, pharmaceuticals, medical devices, daily chemicals, and automotive components.

Flexitest offers the C660M Leak and Seal Strength Tester and the C660B Vacuum Leak Tester, both manufactured by Labthink. The C660M uses the positive pressure method to quantitatively measure burst pressure, seal strength, and creep resistance. The C660B uses the negative pressure (vacuum/bubble emission) method to visually detect leaks by submerging the package in water under vacuum — ideal for qualitative leak detection across a wide range of packaging types.

The C660M supports four test modes — burst test, creep test, creep-to-failure test, and pressure retaining test — with a standard test range of 0 to 600 KPa (extendable to 1.6 MPa optionally) and pressure accuracy of ±0.25% FS. It also supports both restrained and unrestrained distension methods, making it versatile for flexible pouches, aseptic packages, blister packs, tamper-evident closures, aerosol valves, and flexible tubes.

The C660B submerges the specimen in water inside a sealed vacuum chamber and evacuates the chamber to create a pressure differential. Any leak is identified by observing a steady stream of air bubbles escaping from the package, or by watching for expansion and recovery after vacuum release. It conforms to ASTM D3078 and GB/T 15171, and achieves a vacuum level of 0 to −90 KPa with automatic constant pressure compensation for consistent, repeatable results.

The C660M is applicable to flexible pouches, aluminium-plastic and paper-plastic laminates, aseptic packages, flexible tubes (cosmetics, food, pharmaceuticals), tamper-evident closures, aerosol valves, blister packs, and pressurised caps for beverages, edible oil, and food cans. The C660B tests glass, plastic, and metal bottles, pipes, cans, composite bags and boxes, pen refills, electronic components, and medical instruments — including packages subjected to drop or compression tests.

The C660M complies with ISO 11607-1, ISO 11607-2, ASTM F1140, ASTM F2054, and pharmaceutical packaging standards including YBB 00252005 and YBB 00162002. The C660B complies with ASTM D3078 and GB/T 15171. Both instruments are optionally configurable to meet GMP requirements, making them suitable for validated pharmaceutical and medical device manufacturing environments.

Both instruments are equipped with an industrial-grade intelligent touch screen featuring a simplified interface, one-button operation, and remote upgrade capability. They store up to 1,200 test records with automatic data storage and power-failure memory. Optional features include a micro-printer, USB data transfer ports, multi-level user management with password login, PDF report export, and Labthink’s DataShield™ System for LIMS integration and secure data traceability.

In restrained distension, the package is physically confined during pressurisation to simulate real-world conditions such as stacked or shelf-stored packaging. In unrestrained distension, the package is free to expand under pressure, reflecting burst resistance under open conditions. The C660M supports both methods, allowing users to select the approach that best matches their applicable test standard or end-use scenario.

The C660M supports a pressure retaining time of 0.1 seconds up to 999,999.9 seconds (approximately 11.5 days). This enables extended creep and long-duration deformation monitoring tests — critical for validating packaging shelf-life performance, assessing seal fatigue under sustained load, and simulating transportation and storage stress conditions.

Flexitest is the authorised Labthink instrument supplier across India, with branches in Mumbai, Delhi, Ahmedabad, Vadodara, Pune, Hyderabad, and Chennai. They provide free installation and training, AMC support, live online troubleshooting, and customised solutions for your lab requirements. Reach out at sales@flexitest.in or call +91 93263 25135 to request an instant quote, product brochure, or live demonstration.

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