Defines requirements for diaphragm and capsule indicating pressure gauges, vacuum gauges and combined vacuum and pressure gauges (compound gauges) from 50 - 250 nominal size having ranges up to 25 bar for measuring gauge pressure. Includes test procedures for performance applicable at type approval and production piece tests. Applicable to gauges for industrial use with common industrial fluids. Not applicable to pressure gauges for oxygen or acetylene use nor gauges having electrical contacts.