This European Standard is restricted to valves not exceeding a size of DN 100 for category B. The valves of
category A are limited to DN 25 and set pressures up to 40 bars. Both categories are designed to relieve single
phase vapours or gases. A valve can be specified, constructed and tested such that it is suitable for use with more
than one gas or with mixtures of gases.
BS EN 13648-1:2008 Referenced Document
EN 12300:1998 Cryogenic vessels - Cleanliness for cryogenic service
EN 1252-1:1998 Cryogenic vessels Materials Part 1: Toughness requirements for temperatures below p80 °C (Incorporating corrigendum December 1998)
EN 1252-2:2001 Cryogenic Vessels - Materials - Part 2: Toughness Requirements for Temperatures between -80 degrees C and -20 Degrees C
EN 1797:2001 Cryogenic vessels - Gas/material compatibility
EN ISO 4126-1:2004 Safety devices for protection against excessive pressure - Part 1: Safety valves (Incorporating Corrigendum August 2006)
EN ISO 4126-4:2004 Safety devices for protection against excessive pressure - Part 4: Pilot operated safety valves ISO 4126-4:2004
BS EN 13648-1:2008 history
2009BS EN 13648-1:2009 Cryogenic vessels - Safety devices for protection against excessive pressure - Safety valves for cryogenic service
2009BS EN 13648-1:2008 Cryogenic vessels — Safety devices for protection against excessive pressure Part 1: Safety valves for cryogenic service
2002BS EN 13648-1:2002 Cryogenic vessels - Safety devices for protection against excessive pressure - Safety valves for cryogenic service