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This standard defines the conditions for the execution of welding procedure approval tests and the limits of validity of an approved welding procedure for practical welding operations within the range of variables listed in clause 8
It requires that an organization considers all environmental issues relevant to its operations
Protection from corrosion
made from unalloyed and alloyed steels
ridurre la burocrazia
Fixed firefighting systems. Components for sprinkler and water spray systems - Water motor alarms Ingestion-build-54484 This standard defines the conditionsThis part of EN 12259 specifies requirements for construction and performance of water motor alarms for use in conjunction with alarm valves conforming to EN 12259 2, EN 12259 3 and prEN 12259 9: 1999 used in automatic sprinkler systems complying with prEN 12845: 1997 and water spray systems conforming to the relevant European Standard1). Type approval tests and a recommended test schedule for type approval testing are also given. Auxiliary components