UV Accelerated Weathering Tester – GBPI ZWLLX
| Brand | GBPI |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | Domestic (China) |
| Model | ZWLLX |
| Pricing | Upon Request |
Overview
The GBPI ZWLLX UV Accelerated Weathering Tester is an engineered benchtop environmental simulation system designed to evaluate the photochemical degradation behavior of materials under controlled ultraviolet (UV) radiation, temperature, and moisture cycling. It operates on the principle of accelerated photodegradation using fluorescent UV lamps—primarily UVA-340 (simulating solar UV down to 295 nm) and UVB-313 (extending into shorter, more aggressive wavelengths)—combined with programmable condensation and spray cycles to replicate real-world exposure conditions including sunlight, dew formation, and intermittent rain. Unlike natural outdoor exposure, which may require years to yield measurable degradation, the ZWLLX delivers reproducible, quantifiable aging data within weeks—enabling rapid formulation screening, quality control validation, and comparative durability benchmarking across polymer, coating, adhesive, and packaging substrates.
Key Features
- Triple-lamp UV irradiation chamber with interchangeable UVA-340 and UVB-313 lamp configurations for spectral flexibility aligned with ISO 4892-3 and ASTM G154 protocols
- Programmable condensation cycle (via heated water reservoir and chamber wall cooling) to simulate nocturnal dew formation per ASTM D4587 and ISO 11507
- Optional water spray function (front-mounted nozzles) for thermal shock and surface erosion simulation in accordance with ASTM D432 and SAE J2020
- Precision PID-controlled black-panel thermometer (BPT) and chamber air temperature regulation (±0.5 °C stability) ensuring compliance with ASTM G151 calibration requirements
- Stainless steel 316L test chamber with quartz UV-transmissive viewing window and corrosion-resistant sample racks accommodating standard 75 × 150 mm specimens or custom fixtures
- Integrated UV radiometer with NIST-traceable calibration certificate for irradiance monitoring at 340 nm (0.35–1.50 W/m²), supporting ISO 4892-1 traceability
Sample Compatibility & Compliance
The ZWLLX accommodates rigid and semi-rigid flat specimens up to 5 mm thickness—including laminated films, coated cartons, printed labels, barrier coatings, and thermoplastic packaging components. Its mechanical design supports both horizontal and vertical mounting orientations to accommodate diverse substrate geometries and industry-specific specimen holders (e.g., ASTM D3794 panels, ISO 11507 test frames). The system meets the physical and operational requirements of multiple international standards: ISO 4892-1 (general principles), ISO 4892-3 (fluorescent UV method), ASTM G151 (exposure apparatus calibration), ASTM G154 (UV-fluorescent lamp exposure), and JIS K 5600-7-8. It also satisfies material-specific testing mandates for coatings (ASTM D4587), adhesives (ASTM C1442), plastics (ANSI/UL 746C), and marine-grade composites (ISO 20340).
Software & Data Management
The ZWLLX is equipped with embedded microprocessor-based controller featuring a 7-inch capacitive touchscreen interface and onboard data logging (10,000+ timestamped records). Test profiles—including UV intensity, condensation duration, spray frequency, and thermal ramp rates—are configurable via intuitive menu navigation and exportable in CSV format. Optional PC connectivity enables remote monitoring, report generation (PDF/Excel), and audit-ready data archiving compliant with GLP and ISO/IEC 17025 documentation requirements. While not natively 21 CFR Part 11 compliant, the system supports third-party validated software extensions for electronic signatures and audit trail functionality in regulated packaging development environments.
Applications
- Evaluation of UV stabilizer efficacy in polyolefin-based flexible packaging films
- Accelerated aging of printed ink systems on corrugated board and shrink sleeves per GM 9125P and Nissan M0007 specifications
- Correlation studies between laboratory UV exposure and field performance of barrier coatings in pharmaceutical blister packaging
- Validation of weather resistance for automotive interior trim materials (SAE J2020, FED-STD-141B)
- Comparative testing of adhesive bond integrity after UV/moisture cycling (ASTM C1184, ASTM D904)
- Pre-qualification of labeling materials for tropical climate distribution per NACE TM-01-84 and PrEN 927-6
FAQ
What UV lamp types are supported by the ZWLLX?
The system accepts UVA-340 (315–400 nm, peak 340 nm) and UVB-313 (280–360 nm, peak 313 nm) fluorescent lamps, both compliant with ASTM G154 spectral requirements.
Can the ZWLLX perform cyclic testing combining UV, condensation, and spray?
Yes—users can define multi-step programs with sequential or overlapping UV irradiation, condensation, and water spray phases per ISO 4892-3 Cycle 1–4 and ASTM D4587 protocols.
Is calibration documentation provided with the instrument?
Each unit ships with a factory-issued UV radiometer calibration certificate traceable to NIST, along with black-panel thermometer verification data.
Does the ZWLLX meet FDA or pharmaceutical packaging regulatory requirements?
While not certified for direct GMP manufacturing use, its test methodology aligns with USP particulate matter guidance and ISO 11607-1 stability protocols for packaging qualification when integrated into validated lab workflows.
What maintenance intervals are recommended for long-term reliability?
Lamp replacement every 1,600 hours (UVA-340) or 500 hours (UVB-313); quarterly cleaning of condensate trays and quartz viewports; annual verification of temperature uniformity per ASTM G151 Annex A2.
