Jianhu JST-060 Salt Spray Test Chamber (NSS/ACSS/CASS)
| Brand | Jianhu |
|---|---|
| Origin | Shanghai, China |
| Model | JST-060 |
| Internal Chamber Dimensions (W×D×H) | 60×45×40 cm |
| External Dimensions (W×D×H) | 108×63×119 cm |
| Test Chamber Temperature Range | 35–50 °C (NSS/ACSS: 35 °C ±1 °C |
| CASS | 50 °C ±1 °C) |
| Saturated Air Tank Temperature | 47 °C ±1 °C (NSS/ACSS) / 63 °C ±1 °C (CASS) |
| Temperature Uniformity | ±2 °C |
| Temperature Stability | ±0.5 °C |
| Salt Spray Deposition Rate | 1–2 mL / 80 cm²·h |
| Spray Method | Tower-type conical disperser with PYREX® precision glass nozzles |
| Pressure Regulation | Primary regulator (2–2.5 kgf/cm²), secondary adjustable regulator (0–4 kgf/cm²), nominal spray pressure: 1 kgf/cm² |
| Safety Systems | Dual overtemperature protection, water level sensor, status indicator lamps, CE-compliant electrical components (Siemens, STON, ANLY, YAMATO controllers) |
| Compliance | GB/T 2423.17, ASTM B117, ISO 9227, JIS Z2371, CNS 11327 |
Overview
The Jianhu JST-060 Salt Spray Test Chamber is an engineered environmental simulation system designed for accelerated corrosion testing of metallic and coated materials under controlled saline atmospheric conditions. It operates on the principle of continuous or programmable atomized sodium chloride (NaCl) aerosol generation, delivered via a tower-type conical disperser to ensure uniform fog distribution across the test specimen surface. The chamber supports three standardized corrosion test modes: Neutral Salt Spray (NSS), Acetic Acid Salt Spray (AASS), and Copper-Accelerated Acetic Acid Salt Spray (CASS), each requiring precise thermal management of both the test chamber and the saturated air reservoir. Its dual-zone temperature control architecture—maintaining independent setpoints for chamber (35 °C ±1 °C for NSS; 50 °C ±1 °C for CASS) and saturated air tank (47 °C ±1 °C / 63 °C ±1 °C)—ensures strict adherence to ASTM B117, ISO 9227, and GB/T 2423.17 protocols. Constructed with corrosion-resistant PVC-coated steel and featuring sealed insulation, the JST-060 provides long-term operational stability in high-humidity, high-chloride environments typical of quality assurance laboratories and R&D centers.
Key Features
- Dual independent PID temperature control loops for test chamber and saturated air tank, with 0.1 °C resolution and ±0.5 °C stability
- Tower-type conical spray disperser with adjustable orientation and flow modulation for reproducible 1–2 mL/80 cm²·h deposition rate
- Four PYREX® borosilicate glass nozzles rated for >4,000 hours of uninterrupted operation without crystallization or clogging
- Redundant safety architecture: dual overtemperature cutoffs, float-type water level sensor, triple-status LED indicators, and UL/CE-certified solid-state relays (STON LY2N/MY2N)
- Modular pneumatic regulation system with primary (2–2.5 kgf/cm²) and secondary (0–4 kgf/cm²) pressure control, calibrated to maintain nominal 1 kgf/cm² spray pressure
- Compliance-ready controller options including Taiwan-made YAMATO and ANLY time/temperature modules with audit-trail-capable digital displays
Sample Compatibility & Compliance
The JST-060 accommodates specimens up to 60 cm wide × 45 cm deep × 40 cm high, supporting flat panels, fasteners, electronic enclosures, automotive trim, and coated aerospace components. Its internal geometry and fog distribution profile meet the spatial uniformity requirements of ISO 9227 Annex A and ASTM B117 Section 6. All wetted surfaces are fabricated from non-reactive PVC-coated structural steel to prevent cross-contamination. The system satisfies mandatory clauses for GLP-compliant corrosion testing—including traceable temperature logging, calibrated deposition measurement (via standardized 80 cm² funnels), and documented calibration intervals per ISO/IEC 17025 guidelines. It is routinely deployed in third-party certification labs accredited to CNAS, A2LA, and UKAS standards for automotive OEM (e.g., Ford WSK-M2G285-A2, GMW14872), electronics (IEC 60068-2-11), and defense (MIL-STD-810H Method 509.6) qualification programs.
Software & Data Management
While the base JST-060 utilizes hardware-based digital controllers (YAMATO or ANLY), optional RS-485/Modbus RTU interface enables integration with LabVIEW, MATLAB, or custom SCADA platforms for real-time temperature, pressure, and runtime monitoring. Controller logs retain timestamped chamber and saturator temperatures at 1-minute intervals for ≥30 days, exportable via USB or serial dump. For regulated environments, the optional ANLY AH5R timer module supports 99-segment programmable cycles with password-protected parameter locking—meeting foundational data integrity expectations aligned with FDA 21 CFR Part 11 Annex 11 principles (though full electronic signature capability requires external LIMS linkage). Calibration certificates for temperature sensors and pressure transducers are provided with initial commissioning and recommended annually per ISO/IEC 17025 Clause 6.5.
Applications
- Corrosion resistance validation of zinc-plated fasteners per ASTM F1941 and ISO 4042
- Coating adhesion and blistering assessment on automotive body panels (SAE J2334, VW PV1210)
- Electrochemical degradation analysis of printed circuit board (PCB) solder masks and conformal coatings
- Qualification of marine-grade stainless steels (e.g., AISI 316L) under cyclic CASS exposure
- Accelerated aging of medical device housings (ISO 10993-15) and surgical instrument finishes
- Supplier qualification audits for Tier-1 automotive and aerospace suppliers requiring IATF 16949 or AS9100 clause 8.4.2 evidence
FAQ
What test standards does the JST-060 fully support out-of-the-box?
It natively complies with ASTM B117 (NSS), ISO 9227 (NSS/AASS/CASS), GB/T 2423.17, JIS Z2371, and CNS 11327. Optional controller firmware upgrades enable partial alignment with ASTM G85 Annex A2 (SO₂-acidified salt spray) and DIN 50021.
Can the JST-060 perform cyclic corrosion tests (CCT)?
The base model supports only static salt spray modes. However, the JST-060 platform is mechanically compatible with Jianhu’s optional CCT add-on kit (JST-CCT-01), which integrates humidity control and drying phases—enabling full SAE J2334 or VDA 621-415 cycle replication.
What maintenance intervals are recommended for long-term reliability?
PYREX® nozzles require quarterly visual inspection; saturated air tank water must be replaced daily with deionized water (resistivity ≥1 MΩ·cm); temperature sensors should be verified biannually using NIST-traceable dry-block calibrators.
Is remote monitoring supported?
Yes—via optional Ethernet-to-Modbus gateway (JH-EMG-01), enabling read-only access to real-time chamber temperature, saturator temperature, elapsed test time, and alarm status through standard web browsers or SNMP traps.
Does the unit include calibration documentation?
Each shipped unit includes a factory calibration report for chamber and saturator PT100 sensors, pressure transducer, and deposition funnel verification—traceable to CNAS-accredited metrology labs per ISO/IEC 17025.
