NeuronBC GT-2.0 Online & Offline Glove Integrity Tester for Aseptic Isolators

Overview

The NeuronBC GT-2.0 Online & Offline Glove Integrity Tester is a dedicated pressure-decay-based integrity verification system engineered for routine, non-destructive leak detection of elastomeric gloves mounted on aseptic isolators and restricted access barrier systems (RABS). It operates in strict accordance with the positive-pressure decay methodology specified in ISO 14644-7:2004 and its Chinese national adoption GB/T 25915.7–2010. Unlike destructive or aerosol-based challenge methods, the GT-2.0 applies controlled, low-magnitude overpressure to the glove interior while monitoring pressure decay rate over time — a quantitative, repeatable, and GMP-aligned approach validated for routine use in sterile manufacturing environments. The instrument’s core architecture integrates high-stability pressure transduction, micro-stepped pneumatic actuation, and closed-loop pressure regulation—derived from NeuronBC’s extensive experience in filter integrity testing platforms—ensuring consistent test execution across varying glove materials (e.g., butyl rubber, nitrile, chloroprene) and geometries.

Key Features

• True dual-mode operation: seamless switching between online (in-situ, without glove disassembly) and offline (benchtop, glove removed) testing configurations
• Intelligent pressure ramping algorithm: delivers small, frequent gas pulses to maintain uniform internal pressure distribution—minimizing glove distortion and eliminating false positives caused by transient elastic deformation
• Full 21 CFR Part 11 compliance: built-in electronic signature workflow, user role hierarchy (admin/operator/auditor), immutable audit trail with timestamped event logging, and tamper-evident data storage
• Integrated thermal printer: generates immediate hard-copy reports with test ID, operator name, date/time, pressure profile summary, pass/fail status, and unique QR-coded traceability
• Embedded color touchscreen HMI: intuitive navigation, auto-parameter selection based on glove type and mounting configuration, real-time pressure curve visualization, and configurable pass/fail thresholds per ISO 14644-7 Annex B
• Portable industrial design: lightweight aluminum chassis (7.5 kg), integrated carry handle, and standardized quick-connect fittings for compressed air/nitrogen supply—enabling deployment across multiple isolator suites without infrastructure modification

Sample Compatibility & Compliance

The GT-2.0 supports all standard isolator glove types conforming to ISO 14644-7 Annex A specifications, including single- and double-glove configurations, welded or clamped mounting interfaces, and both smooth-surface and textured tactile gloves. It accommodates glove diameters ranging from 120 mm to 220 mm and lengths up to 600 mm. All test protocols align with current regulatory expectations for sterility assurance: data integrity meets ALCOA+ principles; electronic records satisfy FDA and EMA requirements for computerized systems used in GMP operations; and validation documentation—including IQ/OQ templates and risk assessments per ICH Q9—is available upon request. The device has undergone third-party electromagnetic compatibility (EMC) and electrical safety testing per IEC 61326-1 and IEC 61010-1.

Software & Data Management

Firmware v3.2 includes embedded database management supporting ≥10,000 test records with full export capability via USB interface (CSV/Excel-compatible format). Each record contains raw pressure vs. time data points (sampled at 10 Hz), calculated decay rate (Pa/s), derived leak rate (mL/min at specified ΔP), environmental temperature/humidity metadata (if external sensors connected), and operator authentication tokens. Data export preserves cryptographic hash integrity. Optional PC-based software (GT-Link Suite) enables centralized fleet monitoring, statistical process control (SPC) charting, automated report generation per ISO/IEC 17025, and integration with LIMS via ASTM E1384-compliant HL7 messaging.

Applications

• Routine pre-use and post-use integrity verification of isolator gloves prior to aseptic processing shifts
• Periodic qualification of glove integrity during media fill simulations and process validation campaigns
• Root cause analysis following visual glove damage or suspected breach events
• Supporting quality investigations under CAPA workflows where glove failure mode analysis is required
• Facilitating compliance with EU GMP Annex 1 (2022) Section 8.74–8.77 and USP Chapter on Container Closure Integrity Testing (CCIT) methodology equivalency

FAQ

Does the GT-2.0 require calibration certification before first use?

Yes. Each unit ships with a NIST-traceable pressure transducer calibration certificate valid for 12 months. Annual recalibration is recommended and supported through NeuronBC’s ISO/IEC 17025-accredited service center.
Can the instrument detect sub-micron leaks relevant to microbial ingress?

While not a direct microbiological challenge test, the GT-2.0’s sensitivity to pressure decay rates corresponding to ≥0.1 µm equivalent orifice diameter (per ISO 14644-7 Annex B calculations) provides a scientifically justified surrogate for microbial retention under defined test conditions.
Is offline testing performed under the same regulatory framework as online testing?

Yes. Both modes follow identical pressure-decay physics, data acquisition protocols, and audit trail requirements. Offline mode is particularly valuable for glove replacement qualification and accelerated aging studies.
What gases are approved for use with the GT-2.0?

Compressed air (oil-free, Class 1 per ISO 8573-1), nitrogen, argon, or other non-reactive inert gases meeting ISO 8573-1 Class 0 purity standards for pharmaceutical applications.
How does the system prevent false failures due to ambient temperature fluctuations?

The firmware implements real-time temperature compensation using an internal thermistor array and applies ISO 14644-7 Equation B.2 correction factors to normalize decay rate calculations across operating temperatures from 15 °C to 30 °C.