Measurement of fluid flow in closed conduits. Velocity-area methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current-meters or Pitot statics tubes subscription-only Conformity assessors of a service

Conformity assessors of a service provider’s service management system to the requirements in this part of ISO/IEC 20000

Contractors installing gas protective measures

polished samples and for instruments that incorporate an Al or Mg X-ray source

ISO 8529-3 provides you with guidance on the procedures for monoenergetic and polyenergetic reference neutron fields

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Measurement of fluid flow in closed conduits. Velocity-area methods of flow measurement in swirling or asymmetric flow conditions in circular ducts by means of current-meters or Pitot statics tubes subscription-only Conformity assessors of a service1 Scope This International Standard specifies velocity area methods for measuring flow in swirling or asymmetric flow conditions in circular ducts by means of current meters or Pitot static tubes. It specifies the measurements required, the precautions to be taken, the corrections to apply, and describes the additional uncertainties which are introduced when a measurement in asymmetric or swirling flow has to be made. Only flows with a negligible