ISO 28765 Standard: Testing and Compliance Guide for Vitreous Enameled Tanks
Overview
ISO 28765 Standard: Testing and Compliance Guide for Vitreous Enameled Tanks, listed by Shijiazhuang Zhengzhong Technology Co.,Ltd in Shijiazhuang, Hebei. Coating class Storage Application, testing rigor (spark test) Permissible Defects (Inside) and high voltage (>1000v) Zero defects allowed. are among the specifications published.
Technical specifications
| Coating Class | Storage Application |
|---|---|
| Testing Rigor (Spark Test) | Permissible Defects (Inside) |
| Class A | Aggressive industrial wastewater, Biogas digesters |
| High Voltage (>1000V) | Zero defects allowed. |
| Class B | Municipal wastewater, Potable water |
| Standard Voltage (700V) | Zero defects allowed. |
| Class C | Dry bulk storage, Mild environments |
| Low Voltage | Extremely limited; monitored. |