MC-B82 Negative Pressure Leak Detector Series

The MC-B82 is a versatile, cost-effective solution for Container Closure Integrity Testing (CCIT) and package seal quality inspection. Designed for pharmaceutical QC laboratories and packaging development, this system utilizes a vacuum system to support three distinct leak test methodologies under one platform: Dye Ingress, Bubble Emission, and Microbial Ingress. Its transparent acrylic chamber and precise vacuum control enable operators to visualize leaks, qualify package integrity per USP <1207> guidelines, and validate Maximum Allowable Leakage Limit (MALL) without the need for expensive tracer gases or complex calibrations.

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Test Method

Application

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Container Types

Vials, ampoules, pre-filled syringes, IV bags, cartridges and other containers.

Features

01

Multi-Method Flexibility: Switch seamlessly between Bubble, Dye Ingress, and Microbial Ingress testing methods using a single instrument
02

Visual Leak Localization: Transparent acrylic chamber allows direct observation of leak paths for root cause analysis
03

Economic & Tracer Gas-Free: Operates on standard compressed air (6-8 bar); no helium, hydrogen, or calibration gases required
04

Precise Vacuum Control: Adjustable vacuum up to 200 mbar absolute pressure, suitable for simulating altitude and transport conditions
05

Broad Compatibility: Available in five chamber sizes to accommodate everything from small ampoules to large IV bags
06

Low Maintenance Design: Simple venturi vacuum system with integrated drain valve for easy media exchange
07

Fast Cycle Time: Typical test duration under 30 seconds for Bubble Emission method

Technical Specifications

Parameter	Specification
Test Principle	Vacuum Decay (Visual Observation of Ingress/Egress)
Maximum Absolute Vacuum	200 mbar (Adjustable)
Vacuum Generator	Venturi Nozzle (Compressed Air Powered)
Compressed Air Requirement	6 – 8 bar
Connection Interface	G 1/4" (Adapters to 1/4" NPT included)
Chamber Material	Transparent Acrylic Glass
Included Accessories	Tubing 8mm OD; Tubing 12mm OD; G 1/4" M to 1/4" NPT Adapter

More Information

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Frequently Asked Questions

Q:
What is the difference between probabilistic and deterministic test methods?

A:

Probabilistic and deterministic methods differ fundamentally in principle, output, and reliability.

- Probabilistic methods (e.g., microbial ingress, dye ingress) – Results are influenced by variable factors. Output is typically qualitative or semi‑quantitative, and cannot precisely locate or size leaks. They provide probability‑based, indirect evidence of integrity.

- Deterministic methods (e.g., vacuum decay, laser-based headspace analysis) – Based on physical principles, measuring quantifiable parameters to directly detect leaks. Results are objective, quantitative, and highly repeatable, enabling calibration, trend analysis, and statistical process control. They provide a higher level of assurance and reliability.
Q:
What is Container Closure Integrity (CCI)?

A:

Container Closure Integrity (CCI) refers to the ability of a packaging system to prevent product loss, microbial ingress, and entry of gases (oxygen, air, water vapor, etc.) or other substances, thereby ensuring that the drug product remains safe and meets quality standards throughout its shelf life.

For injectable packaging systems, CCI requirements fall into three categories:

1. maintain sterility and product composition without the need to preserve headspace gas;

2. maintain sterility, product composition, and headspace gas;

3. for multi-dose containers that must maintain sterility after opening – prevent microbial ingress and product leakage during use. CCI studies for injectable products should be tailored to product characteristics.

A packaging system is generally considered to have acceptable CCI when it has passed or is capable of passing a microbial challenge test. In a broader sense, CCI means the absence of any leakage that could compromise drug quality. Based on scientific research and risk assessment, the Maximum Allowable Leakage Limit (MALL) should be determined considering packaging composition and assembly, product contents, and the environment to which the product may be exposed over its lifecycle. If a package’s leakage does not exceed its MALL, the closure system is considered integral.
Q:
Which regulations and guidelines address Container Closure Integrity?

A:

Key regulatory and technical guidance documents for CCI include:

- EU GMP Annex 1 – Mandates container closure integrity verification and testing for terminally sterilized products, with differentiated requirements based on container type.

- USP <1207> – A comprehensive technical guide widely accepted as the industry standard, systematically describing test method categories, selection, validation, and lifecycle application. FDA guidance also permits physical CCI testing as an alternative to some sterility tests in stability studies.

- China NMPA – "Technical Guideline for Packaging System Integrity Study of Chemical Injectables (Trial)" – Signals increasing regulatory attention and alignment with international standards.