I.S. EN 764-7:2002

Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Risk consideration
   4.1 General
   4.2 Identification of hazards
   4.3 Solutions
5 Limiting devices and systems
   5.1 General
   5.2 Design
6 Pressure limitation
   6.1 General
   6.2 Safety valves, direct loaded and pilot
       operated
   6.3 Bursting disc safety devices
   6.4 Safety Valves & bursting disc safety devices
       in series or parallel
   6.5 Controlled safety pressure relief systems
       (CSPRS)
   6.6 Safety related measuring, control & regulation
       systems (SRMCR)
7 Hazard protection
   7.1 Internal
   7.2 External
   7.3 Static electricity
8 Installation of pressure relieving devices
   8.1 General
   8.2 Safety valves or the main valve of a CSPRS
   8.3 Installation of bursting disc safety devices
   8.4 Safety valve and bursting disc safety devices
       in combination
   8.5 Isolation of relieving safety systems
9 Indicators and alarms
   9.1 General
   9.2 Pressure indicators
   9.3 Temperature indicators
   9.4 Liquid level indicators
   9.5 Signals and warning devices
10 Inspection and maintenance
Annex A (informative) Sizing of multiple safety valves
Annex B (normative) Requirements for level limiters
   B.1 General
   B.2 Floating devices
   B.3 Level electrode devices
   B.4 Fault detection
Annex C (informative) Selection of safety accessories
        for pressure limitation
Annex D (normative) Bursting disc safety devices
        downstream of safety valves
Annex E (informative) Scope of the standard
Annex ZA (informative) Clauses of this European
         Standard addressing essential requirements or
         other provisions of EU Directives
Bibliography

Describes the requirements for safety systems, which protect a vessel, a system of vessels, piping, accessories or assemblies from exceeding operating conditions.