Fixed firefighting systems. Components for gas extinguishing systems - Requirements and test methods for connectorsThis European Standard specifies requirements and describes test methods for flexible and rigid connectors used in CO2 , Inert Gas or Halocarbon gas fire extinguishing systems. This European Standard is applicable to connectors used: between container valves and the manifold (type 1 and type 5 connector); in pneumatic pilot lines (type 3 connector); in distribution pipework of fire extinguishing installations downstream of the manifold selector valve

BS EN 140:1999 specifies minimum requirements for half masks and quarter masks for use as part of respiratory protective devices

Quenching and tempering are processes that strengthen materials like steel and other iron-based alloys

the means by which learner information can be packaged in order to be exchanged with disparate systems using DD 8788-3

Shape and dimensions

fibre cement

minimize risk to employees and others by developing good working practices to prevent accidents and work-related ill health

BS EN 10311 is suitable for joints intended for the conveyance of water for human consumption

Those same service providers are being asked for improved quality

What is the contents of EN 12620 - Aggregates for concrete

It is assumed that the heat generated during the incineration process shall be recovered as far as practicable

from 40 to 250 nominal size

environmental tests