Cubic Gasboard-7050 3-Liter Calibration Syringe for Pulmonary Function Testing

Overview

The Cubic Gasboard-7050 3-Liter Calibration Syringe is a precision mechanical volume standard designed exclusively for routine calibration and linearity verification of spirometers and pulmonary function testing (PFT) systems. Engineered in accordance with the metrological requirements defined in JJF 1213–2008 — the national calibration specification for pulmonary function instruments in China — this syringe employs a low-friction piston mechanism to minimize hysteresis and ensure repeatable volumetric delivery across the full 3000 mL stroke. Its operation relies on displacement-based volume generation, independent of gas composition or environmental pressure fluctuations, making it suitable for both volumetric calibration (single-point and multi-point) and three-flow rate linearity validation (typically at 0.5 L/s, 1.0 L/s, and 2.0 L/s per ISO 26782 and ATS/ERS guidelines). The device serves as a primary reference standard in clinical laboratories, pulmonary function labs, and medical device service centers where traceable, non-electronic volume verification is required prior to patient testing or instrument maintenance.

Key Features

• High-accuracy mechanical volume standard with certified accuracy of ±15 mL at 3000 mL — fully compliant with JJF 1213–2008 tolerance limits for Class I calibration syringes.
• Low-traction piston assembly featuring optimized polymer seals and precision-ground cylinder bore, ensuring smooth actuation with minimal starting force (<0.3 N) and negligible stiction-induced error.
• Rigid aluminum-alloy housing with anodized finish, providing dimensional stability across ambient temperature ranges (15–40 °C operating; 0–50 °C storage) and resistance to clinical-grade disinfectants.
• Standardized Φ28 mm outer-diameter piston interface compatible with most commercial spirometers, including those from CareFusion (Vmax), MedGraphics, COSMED, and MGC Diagnostics — enabling direct coupling without adapters.
• Compact footprint (590 × 113 × 116.5 mm) and lightweight design (2.5 kg) facilitate portability between testing stations and integration into mobile PFT cart configurations.

Sample Compatibility & Compliance

The Gasboard-7050 is not a sample analysis device but a metrological reference tool used exclusively for calibrating flow and volume measurement subsystems in spirometry equipment. It does not interact with biological samples or respiratory gases. Its compliance scope includes adherence to JJF 1213–2008, which aligns with core principles of ISO/IEC 17025 for calibration laboratories and references foundational standards such as ISO 26782:2018 (Respiratory function — Spirometers — Requirements and test methods) and the American Thoracic Society/European Respiratory Society (ATS/ERS) 2005 and 2019 technical standards for spirometer performance. While not FDA-cleared as a standalone medical device, its use supports GLP-compliant calibration records and fulfills quality system requirements under ISO 13485 for in vitro diagnostic (IVD) servicing organizations.

Software & Data Management

As a passive mechanical calibration standard, the Gasboard-7050 requires no embedded firmware, drivers, or software connectivity. Its integration into digital quality workflows occurs through external instrumentation: spirometer systems record flow-volume loops during syringe actuation, and proprietary or third-party calibration software (e.g., Bland-Altman analysis modules, linearity regression tools) processes the acquired data to generate calibration reports. When used in regulated environments, documented syringe verification — including date, operator ID, ambient conditions, and deviation results — must be retained per institutional QA protocols and may be archived within electronic quality management systems (eQMS) supporting 21 CFR Part 11 audit trails if linked via validated SOPs.

Applications

• Pre-test daily calibration of desktop and portable spirometers in outpatient clinics and hospital pulmonary labs.
• Verification of volume linearity across low-, mid-, and high-flow regimes per ATS/ERS recommendations.
• Post-repair or post-sensor replacement functional validation of turbine, ultrasonic, and pneumotachograph-based flow transducers.
• Supporting accreditation audits (e.g., CAP, JCI, CNAS) by providing traceable evidence of volumetric accuracy at the point-of-care.
• Training personnel on proper spirometer handling, leak detection, and calibration protocol execution.

FAQ

Is the Gasboard-7050 suitable for calibration of both volume and flow measurements?

Yes — when operated at controlled, constant speeds (e.g., using a motorized drive or trained manual technique), it enables simultaneous verification of volume accuracy and flow-rate linearity across three clinically relevant rates.
Does this syringe require periodic recalibration or certification?

Per JJF 1213–2008, mechanical calibration syringes should undergo verification at least annually by an accredited metrology laboratory; visual inspection for cylinder scoring, seal integrity, and piston wobble should occur before each use.
Can it be used in humidified or heated breathing circuits?

No — the Gasboard-7050 is intended for dry-gas calibration only; exposure to condensate or elevated temperature (>40 °C) may compromise seal performance and dimensional stability.
What documentation accompanies the unit?

Each unit ships with a manufacturer’s certificate of conformance referencing JJF 1213–2008, dimensional drawings, and instructions for use — but not a NIST-traceable calibration certificate unless separately requested and verified.