Cryogenic vessels. Safety devices for protection against excessive pressure - Safety valves for cryogenic serviceBS EN 13648 1: 2008 Cryogenic vessels. Safety devices for protection against excessive pressure. Safety valves for cryogenic service BS EN 13648 1 specifies the requirements for the design, manufacture and testing of safety valves for cryogenic service. It specifically applies to valves for operation with cryogenic fluids below 10 C in addition to operation at ambient temperature. BS EN 13648 1 requires that valves comply with EN ISO 4126 1 or EN ISO

which are dealt with in BS 5268-3

Contents of BS 7079 contain:

4 Cleaning

with a rated speed exceeding 1 m/s

qualification and quality assurance requirements for sensor based clamp load measurement systems for high tensile bolts and other clamp load sensitive elements

Double opening (French windows)

3 Determination of arsenic

technical recommendations on precast concrete lining elements for segmental tunnel linings

The pipework requirements for 2nd and 3rd family gas (natural gas and LPG) installations into a single standard for use by the gas industry have also been included

Venting of smoke and heat from car parks

Manufacturing deviation and drift

Manufacturers of metallic hydrodynamic bearings