TimePower TP582 Copper Corrosion Tester
| Brand | TimePower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | Domestic (China) |
| Model | TP582 |
| Pricing | Upon Request |
Overview
The TimePower TP582 Copper Corrosion Tester is a precision-engineered benchtop instrument designed for standardized evaluation of copper strip corrosion in petroleum products. It operates on the principle of controlled thermal exposure—where a polished copper strip is immersed in a test sample and held at a specified temperature for a defined duration under inert or ambient atmospheric conditions. The resulting discoloration or tarnish is then assessed visually against the ASTM D130 standard color chart to assign a corrosion rating (from 1a to 4c). This method is grounded in established electrochemical surface interaction principles between reactive sulfur compounds (e.g., mercaptans, sulfides, elemental sulfur) and metallic copper under accelerated thermal stress. The TP582 complies fully with key international test standards including ASTM D130, ASTM D4048, GB/T 5096, GB/T 7326, SH/T 0232, SH/T 0023, and ISO 6251—ensuring data integrity for regulatory reporting, quality control release testing, and refinery process monitoring.
Key Features
- Four independent heating wells with individual thermal isolation, enabling simultaneous multi-sample testing under identical or differentiated temperature protocols.
- PID-based digital temperature control system with Pt100 industrial-grade platinum resistance sensor, delivering stable bath temperature regulation from ambient to 150 °C with ±1 °C accuracy.
- Dual-heating architecture: primary 600 W heating element for precise setpoint maintenance and auxiliary 1000 W boost heater for rapid thermal ramp-up—reducing test cycle time without compromising stability.
- Programmable digital timer (1 minute to 24 hours) with audible end-of-test alarm and LED display; supports repeatable timing across batch runs per ASTM/ISO requirements.
- Integrated self-diagnostic firmware that monitors sensor integrity, heater continuity, and thermal drift—flagging anomalies prior to test initiation to prevent invalid results.
- Robust aluminum alloy bath block with optimized thermal mass and forced-convection stirring via low-torque motor-driven impeller—ensuring uniform temperature distribution (±0.5 °C across all wells).
Sample Compatibility & Compliance
The TP582 accommodates a broad range of hydrocarbon-based samples requiring copper corrosion assessment: aviation gasoline, jet fuel (Jet A/A-1), automotive gasoline, natural gasoline, naphthas, solvent oils, diesel fuels (EN 590, ASTM D975), distillate fuel oils, lubricating oils (including turbine and hydraulic grades), greases, and specialty petrochemical solvents. It supports testing of samples with Reid Vapor Pressure (RVP) ≤ 124 kPa (930 mmHg), as stipulated in ASTM D130. All operational parameters—including temperature setpoint, dwell time, and bath medium selection (water, silicone oil, or glycol-water mix)—are aligned with the procedural constraints of referenced methods. Instrument design meets general laboratory safety requirements per IEC 61010-1 and supports GLP-compliant workflows through traceable calibration logs and operator-accessible system diagnostics.
Software & Data Management
While the TP582 operates as a standalone hardware platform without embedded PC software, its digital interface provides full parameter logging capability via external USB data loggers (optional accessory). Temperature and time profiles can be captured at user-defined intervals (1–60 sec resolution) for post-test analysis in Excel or LIMS environments. The front-panel controls support password-protected parameter lockout to prevent unauthorized modification during routine QC operations. Audit trail functionality is maintained through manual logbook entries or integration with enterprise-quality documentation systems adhering to 21 CFR Part 11 requirements when paired with validated electronic record solutions.
Applications
- Refinery final product release testing per ASTM D130 specifications prior to pipeline shipment or terminal transfer.
- Monitoring sulfur scavenger efficiency in hydrotreating units by correlating copper corrosion ratings with UOP Sulfur Analyzer outputs.
- Quality assurance of additive packages in lubricant formulation—detecting corrosive degradation products formed during high-temperature oxidation.
- Third-party certification laboratories performing accredited testing under ISO/IEC 17025 scope for fuel distributors and OEM engine manufacturers.
- R&D screening of alternative bio-derived fuels (e.g., HVO, FAME blends) for latent copper-corrosive species not detected by total sulfur assays.
FAQ
What bath media are compatible with the TP582?
Water (for tests up to 100 °C), silicone oil (up to 150 °C), or glycol–water mixtures may be used. Never operate the unit dry—the heating elements must remain fully submerged.
How many copper strips can be tested simultaneously?
Each well holds one copper strip; with four wells and optional sequential loading, up to 12 strips may be processed per 24-hour period depending on test duration.
Is the instrument supplied with certified reference copper strips?
No—strips must be procured separately per ASTM D130 specifications (Grade C10200, 12.7 × 19.1 × 1.5 mm, mechanically polished to 600-grit finish).
Does the TP582 include a built-in color matching chart?
No—visual assessment requires the official ASTM D130 copper corrosion standard color chart (available from ASTM International or authorized resellers).
Can the unit be integrated into a laboratory automation system?
Yes—digital I/O ports (RS-232 or optional RS-485) enable basic remote start/stop and status signaling when configured with compatible SCADA or MES platforms.
