3 Apparatus3.1 Ambient temperaturesFor tests at ambient temperatures (see 5.2), a test room or water bath, capable of being maintained ata temperature to within ± 2°C.3.2 Elevated temperaturesFor tests at elevated temperatures, an air chamber or water bath, capable of being maintained at thespecified test temperature to within +3….-1C 3.3 Pressure control deviceA pressure control … Continue reading ISO 13846 – Plastics Piping Systems — End-Loadbearing and non-End-Load-Bearing Assemblies and Joints for Thermoplastics Pressure Piping — Test Method for Long-Term Leaktightness Under Internal Water Pressure – Testing Equipment