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Germany

A. D. Merkblatt A2

Pressure Vessel Equipment safety devices against excess pressure - safety valves

TRD 421

Technical Equipment for Steam Boilers Safeguards against excessive pressure - safety valves for boilers of groups I, III & IV

TRD 721

Technical Equipment for Steam Boilers Safeguards against excessive pressure- safety valves for steam boilers group II

United Kingdom

BS 6759

Part 1 specification for safety valves for steam and hot water
Part 2 specification for safety valves for compressed air and inert gas
Part 3 specification for safety valves for process fluids

France

AFNOR NFE-E
29-411 to 416

Safety and relief valves

NFE-E-29-421

Safety and relief valves

Korea

KS B 6216

Spring loaded safety valves for steam boilers and pressure vessels

Japan

JIS B 8210

Steam boilers and pressure vessels - spring loaded safety valves

Australia

SAA AS1271

Safety valves, other valves, liquid level gauges and other fittings for boilers and unfired pressure vessels

USA

ASME I

Boiler applications

ASME III

Nuclear applications

ASME VIII

Unfired Pressure Vessel Applications

ANSI/ASME PTC 25.3

Safety and Relief Valves - performance test codes

API RP 520

Sizing selection and installation of pressure relieving devices in refineries, Part 1 Design, Part 2 Installation

API RP 521

Guide for pressure relieving and depressurizing systems

API STD 526

Flanged steel pressure relief valves

API STD 527

Seat tightness of pressure relief valves

Europe

EN ISO 4126

Safety devices for protection against excessive pressure

International

ISO 4126

Safety valves - general requirements