Shanghai – TOBO GROUP, a pioneer in integrated material performance testing, is proud to introduce the BioCorr Plus Salt Spray Tester—a one-of-a-kind system that combines traditional salt spray corrosion analysis with microbial resistance testing. Designed for industries including healthcare, food processing, and marine sanitation, this tester addresses a critical gap: evaluating how antimicrobial-infused materials (e.g., copper-alloy surfaces, silver-ion coatings) hold up to both corrosion and microbial growth in harsh, moist environments.
The BioCorr Plus’s defining innovation is its dual-challenge testing capability. It first subjects specimens to standard salt spray conditions (35°C, 5% NaCl solution) to simulate corrosive environments like hospital sinks or food processing equipment. Then, the system introduces a controlled microbial cocktail—including common pathogens like Staphylococcus aureus and E. coli—into the test chamber, maintaining 95% humidity to encourage microbial colonization. This allows manufacturers to measure two key performance metrics simultaneously: how much the material corrodes over time, and how well it retains antimicrobial properties after exposure to salt and moisture. A healthcare equipment maker used this feature to test antimicrobial stainless steel for hospital bed rails, discovering that while the material resisted corrosion well, its antimicrobial efficacy dropped by 20% after 500 hours of salt spray—prompting a coating adjustment to preserve both traits.
Precision is maintained across both tests via the system’s integrated sensor suite. For corrosion monitoring, 8 high-precision probes track salt concentration (±0.01%), temperature (±0.2°C), and corrosion rate (via electrochemical impedance). For microbial testing, a built-in ATP analyzer measures microbial activity on specimen surfaces at set intervals (e.g., 24, 48, 72 hours), providing quantitative data on antimicrobial performance. The system meets strict standards for both corrosion (ASTM B117, ISO 9227) and antimicrobial testing (ISO 22196, ASTM E2149), ensuring results are valid for regulatory submissions. A food processing equipment manufacturer noted that the BioCorr Plus’s precision let them comply with FDA requirements for both material durability and microbial control in one test.
Efficiency is enhanced by the system’s automated sample handling and cleaning. A robotic arm with sterile grippers moves specimens between corrosion and microbial testing stations, eliminating cross-contamination risks. After testing, a high-pressure, sterile water rinse cleans the chamber and sensors, preparing the system for the next batch in under 30 minutes. A marine sanitation company testing antimicrobial boat hull coatings reported that this automation cut their testing time by 40% compared to using separate corrosion and microbial test units.
Real-world applications demonstrate the system’s cross-industry value. A manufacturer of water purification systems used the BioCorr Plus to test antimicrobial filter housings: the system confirmed that the housing’s corrosion resistance met ISO 9227 standards, while its antimicrobial coating killed 99.9% of Legionella bacteria even after 1,000 hours of salt spray. In the food industry, a producer of stainless steel food prep tables used the tester to validate a new antimicrobial coating, ensuring it resisted both rust (from daily cleaning with salt-based sanitizers) and Salmonella growth (a critical food safety requirement).
“The BioCorr Plus redefines what’s possible in material testing for hygiene-critical industries,”TOBO GROUP’s Healthcare & Food Sector Lead. “Materials in hospitals, food plants, or marine environments don’t just face corrosion—they fight microbes too. Our system lets manufacturers test both challenges at once, ensuring products are durable and safe.”
For more information about the BioCorr Plus Salt Spray Tester, including microbial strain options, custom test protocols, and pricing, visit Info@botomachine.com.
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