Timepower TP582 Copper Strip Corrosion Tester
| Brand | Timepower |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Manufacturer |
| Country of Origin | Domestic (China) |
| Model | TP582 |
| Quotation | Upon Request |
Overview
The Timepower TP582 Copper Strip 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—copper strips are immersed in test samples and held at a precisely regulated temperature for a defined duration, after which visual assessment is performed per standardized rating scales (e.g., ASTM D130, GB/T 5096). This method quantifies corrosive sulfur compounds and reactive species that cause discoloration, tarnishing, or pitting on polished copper surfaces—a critical indicator of product stability, refining adequacy, and storage compatibility. The instrument conforms to multiple international and national specifications including ASTM D130, ASTM D4048, ISO 6251, GB/T 5096, GB/T 7326, SH/T 0232, and SH/T 0023, ensuring data integrity for quality control laboratories operating under ISO/IEC 17025, API Q1, or refinery-specific QA/QC protocols.
Key Features
- Metal bath heating system with PID-based digital temperature control, enabling stable thermal uniformity across all sample positions.
- Four independent sample wells accommodating up to twelve copper strips per test cycle (three strips per well, with optional staggered timing).
- Adjustable timer range from 1 minute to 24 hours with audible end-of-test alert—supports multi-tier testing protocols (e.g., 3 h @ 50 °C for gasoline; 3 h @ 100 °C for lubricating oils).
- Industrial-grade Pt100 platinum resistance thermometer (±0.1 °C accuracy) coupled with dual-stage heating (600 W primary + 1000 W auxiliary) for rapid thermal recovery and minimal overshoot.
- Digital LED display for both temperature (0.1 °C resolution) and time (1-second resolution), facilitating real-time monitoring and traceable recordkeeping.
- Robust aluminum alloy housing with integrated ventilation and thermal shielding, rated for continuous operation within ambient conditions of 5–40 °C and ≤85% RH.
Sample Compatibility & Compliance
The TP582 is validated for use with aviation gasoline, jet fuels (Jet A, Jet A-1), automotive gasoline, natural gasoline, naphthas, solvent naphtha, diesel fuel (including ultra-low-sulfur diesel), distillate fuel oils, lubricating oils, greases, and other hydrocarbon-based fluids with Reid vapor pressure ≤124 kPa (930 mmHg). All test procedures align with statutory and industry-recognized corrosion assessment frameworks. Results generated using this instrument support compliance documentation for ASTM-certified product release, refinery internal audit trails, and regulatory submissions under EPA 40 CFR Part 79 or CNPC technical specifications. The device architecture supports GLP-aligned workflows when paired with laboratory information management systems (LIMS) via manual entry or CSV export.
Software & Data Management
While the TP582 operates as a standalone hardware platform without embedded software or network connectivity, its digital interface enables unambiguous manual logging of test parameters—including setpoint temperature, dwell time, bath medium (water/oil/mixture), operator ID, and batch identifier. Time and temperature values are retained on-screen during operation and can be transcribed into electronic lab notebooks (ELN) or LIMS platforms compliant with 21 CFR Part 11 requirements when accompanied by appropriate procedural controls (e.g., dual-operator verification, timestamped sign-off). Optional calibration logs and maintenance records may be maintained externally in accordance with ISO/IEC 17025 clause 7.7 (Equipment Records).
Applications
- Refinery QC labs verifying post-treatment sulfur removal efficiency in hydrotreated feedstocks and finished fuels.
- Aviation fuel certification laboratories conducting mandatory copper strip tests prior to aircraft refueling approval.
- Lubricant formulation R&D assessing additive package compatibility and oxidation-induced corrosivity.
- Third-party testing facilities performing contract analyses for ASTM D130 conformance reporting.
- Storage terminal QA teams screening incoming shipments for latent corrosion potential before tank transfer.
- Educational institutions teaching petroleum product specification testing per API RP 2510 and ASTM D975 curriculum modules.
FAQ
What bath media are compatible with the TP582?
Water, silicone oil, or specified heat-transfer oil mixtures—never operate the unit dry. Bath volume must fully submerge copper strips and maintain ≥25 mm depth above the strip surface.
Is the instrument supplied with copper strips and polishing tools?
No. Copper strips (ASTM D130 Grade 1, 12.5 × 12.5 × 1.5 mm), abrasive papers (150–600 grit), and cleaning solvents (e.g., ASTM D4176-grade heptane) are consumables ordered separately.
Can the TP582 be used for non-petroleum samples such as biodiesel blends?
Yes—provided the sample meets the volatility and thermal stability criteria outlined in ASTM D4048 and does not degrade below 150 °C; validation per ASTM D6751 Annex A3 is recommended.
How often should temperature calibration be performed?
Per ISO/IEC 17025, initial calibration upon installation and annual recalibration thereafter—or following any physical impact, electrical surge, or observed drift exceeding ±1 °C.
Does the unit include audit-trail functionality for regulated environments?
Not natively. However, manual entry into 21 CFR Part 11-compliant ELNs—with electronic signatures and change history—fulfills traceability requirements when supported by documented SOPs.
