DS DS/EN 25199
DS DSEN 25199 1992-NOV-06 Techncal specfcatons for centrfugal pumps - Class
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The standard covers class II requirements for centrifugal pumps of back pull-out construction as used primarily in the chemical and petrochemical industries. However the standard, or individual clauses of it, can be applied in other industries for general industrial use or to pump designs other than of back-pull-out construction.