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3. Different types of depressants
3.1 Normative and commercial law aspects
As the metrological characteristics of orifice flowmeters are usually known by design, without calibration with the fluid to be measured, it was very quickly decided to standardize the best-known types, so that the various users could refer to a common, undisputed basis. The first bodies to do so were probably the AGA (American Gas Association) and the ISA (acronym for International Federation of National Standards Associations), succeeded by the ISO (International Organization for Standardization). The most important document in this field is currently ISO 5167, which has been adopted as a European and French standard by AFNOR (Association française de normalisation).
ISO 5167 concerns "Flow measurement of fluids by...
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Different types of depressants
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Bibliography
Standards and norms
- Flow measurement of fluids by means of depressurizers inserted in loaded pipes of circular cross-section – Part 1: General principles and requirements. Association française de normalisation Afnor - NF EN ISO 5167-1 - juin 2022
- Flow measurement of fluids by means of depressurizers inserted in loaded pipes of circular cross-section – Part 2: Diaphragms - NF EN ISO 5167-2 - Juin 2022
- Flow measurement of fluids...
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