| Test Water | Residual Chlorine conc. | 0.0 - 1.0 mg/L | |
| pH | 7.2 ± 0.4 (by CO2 gas: 0.2 mL/min | ||
| Water Temperature | 25.0˚C ± 10˚C | ||
| Electric Conductivity | 20.0 - 30.0 mS/m | ||
| Raw Water | Service Water (Miyoshi-machi, Iruma-gun, Saitama, Japan) | ||
| Circulating Water Volume | 8.0 ± 0.5 L/min | ||
| Retained Water Volume | 11 L | ||
| Specimens | Plate | SUS304: 30 × 50 × 8 mmt (Effective area 1.0 cm2) | |
| Pipe | SUS304TPD: φ 13 mm × 150 mmL | ||
| Test Duration | 30 days | ||
| Measurement Items | Immersion Potential | HZ5000 and HE-104A (HOKUTO DENKO) | |
| Residual Chlorine conc. | RM-52-PC-B3 (TACMINA) | ||
|
| AQ-101 (SIBATA SCIENTIFIC TECHNOLOGY) | ||
| pH | D-52 (HORIBA) | ||
| Electric Conductivity | CM-31P (DKK/TOA) | ||
| Water Temperature | D-52, CM-31P | ||
| Analysis of Water Quality | 2 times (before and after test) | ||
| Analysis of Specimens | Microscopic Examination, SEM, EPMA | ||