BSG-11-G

Compact Differential Pressure Gas Permeability Tester

                Entry-Level Gas Transmission Rate Analyzer for Packaging Materials and Research Laboratories

Overview

The LabStone BSG-11-G Gas Permeability Tester is a compact differential pressure gas transmission analysis system designed for laboratories requiring reliable gas barrier testing with a small footprint and economical investment.

The instrument measures the permeability properties of oxygen, nitrogen, carbon dioxide and other non-toxic gases through films, sheets, laminates, metal foils, rubber materials and barrier structures.

Designed for routine quality control, material development and educational research, the BSG-11-G provides accurate permeability analysis while maintaining operational simplicity and low ownership cost.

The system automatically calculates:

• Gas Transmission Rate (GTR)
• Gas Permeability Coefficient
• Diffusion Coefficient
• Solubility Coefficient
• Total Gas Permeation

making it suitable for a wide range of packaging and material testing applications.

Designed for Laboratories Starting Gas Barrier Testing

Many laboratories do not require high-throughput or ultra-low permeability measurement systems.

The BSG-11-G is specifically designed for:

University Laboratories

Teaching and research projects involving gas diffusion and barrier properties.

Material Development Laboratories

Initial screening of films and packaging structures.

Packaging Manufacturers

Routine quality verification of incoming materials and production samples.

Third-Party Testing Laboratories

Standard gas permeability testing according to international methods.

New Barrier Material Projects

Early-stage evaluation before scale-up production.

Typical Applications

Flexible Packaging Materials

Suitable for:

• PE films
• PP films
• PET films
• Composite laminates
• Coextruded structures

Food Packaging

Used to evaluate oxygen and carbon dioxide barrier performance affecting product shelf life.

Pharmaceutical Packaging Materials

Applicable to:

• Blister packaging films
• Medical pouches
• Pharmaceutical laminates

Supports packaging material qualification and supplier evaluation.

Industrial Films

Suitable for:

• Protective films
• Functional membranes
• Barrier coatings
• Specialty polymer materials

Research and Educational Institutions

Widely used for:

• Gas diffusion studies
• Permeability comparison testing
• Material characterization

Product Function

Gas permeability performance testing: gas transmission rate, permeation amount, permeability coefficient, dissolution coefficient, diffusion coefficient. 

Applicable to the permeability performance testing of O₂, CO₂, N₂, and other non-toxic gases for materials such as plastic films, composite films, high barrier materials, sheets, metal foils, rubber, and other materials.

Working Principle:

The instrument operates according to the Differential Pressure Method.

A specimen is mounted between a high-pressure chamber and a low-pressure chamber.

Both chambers are evacuated simultaneously to achieve the required vacuum level.

After stabilization:

• Test gas is introduced into the upstream chamber.
• A constant pressure differential is maintained across the specimen.

Gas molecules permeate through the material and enter the downstream chamber.

A precision vacuum sensor continuously monitors pressure changes in the low-pressure chamber.

The software automatically calculates gas permeability characteristics based on the pressure variation and testing conditions.

Compliant Standards: 

ASTM D1434
ISO 15105-1
ISO 2556
JIS K7126-1
GB/T 1038.1

Key Features

Compact Laboratory Design

The compact footprint makes installation easy in laboratories with limited bench space.

Mainframe dimensions:  585 × 640 × 380 mm

Suitable for university laboratories, research centers and quality control facilities.

Reliable Differential Pressure Method

Based on internationally recognized permeability testing principles.

Suitable for testing:

• Oxygen permeability
• Carbon dioxide permeability
• Nitrogen permeability
• Other non-toxic gases

High-Sensitivity Pressure Measurement

Equipped with precision vacuum and pressure sensors to ensure:

• Stable measurements
• Excellent repeatability
• Reliable long-term performance

Optimized Vacuum System

Features:

• Ultimate vacuum below 10 Pa
• Rapid evacuation capability
• Efficient desorption process

which improves testing stability and repeatability.

Anti-Leakage Specimen Sealing Technology

Special sealing structure minimizes:

• Edge leakage
• Installation errors
• Measurement uncertainty

particularly important when evaluating high-barrier materials.

Intelligent Baseline Compensation

Patented background correction technology reduces the influence of:

• System leakage
• Environmental variations
• Residual gas effects

leading to improved accuracy.

Automatic Temperature Control

Temperature range:15°C∼45°C

Temperature accuracy: ±0.3°C

ensuring stable and repeatable test conditions.

One-Button Operation

The testing process is highly automated:

• Automatic self-check
• Automatic vacuum generation
• Automatic test execution
• Automatic result calculation
• Automatic report generation

GMP Data Integrity Support

Optional GMP Computerized System software module supports:

• User management
• Electronic records
• Audit trails
• Permission control

for regulated industries.

Advantages of a Single-Cell Configuration

Unlike multi-cell permeability systems, the BSG-11-G focuses on:

Simplicity

Easy operation and maintenance.

Lower Initial Investment

Ideal for laboratories entering permeability testing.

Dedicated Testing

Single-cell design eliminates cross-sample scheduling concerns.

Research Flexibility

Suitable for non-routine projects requiring frequent test condition changes.

Industries Served

The BSG-11-G is widely used by:

• Packaging Film Manufacturers
• Food Packaging Companies
• Pharmaceutical Packaging Suppliers
• Universities
• Research Institutes
• Quality Control Laboratories
• Government Laboratories
• Material Development Centers

Technical Specifications

Standard Configuration: Testing mainframe, vacuum pump, testing software, sampler, computer, vacuum bellows, gas cylinder pressure reducing valve and fittings, sealing grease. 

Optional Accessories:Container testing fixture, humidity control unit. 

Self-supplied: Test gas and gas cylinders.

Frequently Asked Questions (FAQ)

What gases can be tested?

The instrument supports:

• Oxygen (O₂)
• Carbon dioxide (CO₂)
• Nitrogen (N₂)
• Other non-toxic gases

Is this instrument suitable for routine quality control?

Yes. The BSG-11-G is specifically designed for routine gas permeability testing and material evaluation.

What is the advantage of a single-cell tester?

A single-cell design offers lower cost, easier operation and greater flexibility for laboratories with moderate testing workloads.

Can pharmaceutical packaging materials be tested?

Yes. The instrument is suitable for testing pharmaceutical films, laminates and medical packaging materials.

Can high-barrier materials be tested?

Yes. The instrument supports testing of common and high-barrier packaging structures.

Is a constant temperature laboratory required?

No. The instrument contains its own temperature control system and does not require a climate-controlled laboratory environment.

What is the difference between BSG-11-G and multi-cell models?

BSG-11-G focuses on economical routine testing, while multi-cell systems improve throughput and testing efficiency.

Does this product have other names?

English

• Compact Gas Permeability Tester
• Entry-Level Gas Transmission Rate Tester
• Differential Pressure Gas Permeability Analyzer
• Gas Permeation Analyzer
• Carbon Dioxide Permeability Tester
• Differential Pressure Gas Permeability Analyzer
• Entry-Level Gas Transmission Rate Tester
• Compact Gas Permeability Tester
• GTR Tester
• Oxygen Permeability Tester
• Gas Barrier Tester
• Gas Permeation Analyzer
• Packaging Gas Transmission Tester

Spanish

• Analizador Compacto de Permeabilidad a Gases

Portuguese

• Testador Compacto de Permeabilidade a Gases

French

• Analyseur Compact de Perméabilité aux Gaz

German

• Kompaktes Gasdurchlässigkeitsprüfgerät

Japanese

• コンパクト差圧法ガス透過率試験機