Valve test pressure (TP)*
or Valve working pressure (WP)*
Working Pressure is settled pressure of a compressed gas at 15 °C in a full gas cylinder or cylinder bundle for which the valve is intended to be used. Test Pressure is minimum pressure of the valve used for endurance test, Oxygen pressure surge test & leak tightness test during type & production testing.
Total Package Mass
Total package mass (combined mass of a gas cylinder, its valve, its permanent attachment(s) including valve guard & its maximum allowed gas content) for which the valve can be used without valve protection
YYYY/MM - Year & month of manufacture of valve