NORMATIVE DI RIFERIMENTO
64 standard applicati
Le normative elencate sono state applicate direttamente in contesti di lavoro o ricerca — non come riferimenti teorici, ma come strumenti operativi per la strutturazione delle prove, dei calcoli e della documentazione tecnica.
Norma
Titolo
Ambito / applicazione
Misura di portata (11)
ISO 5167-1
Measurement of Fluid Flow by Means of Pressure Differential Devices – Part 1: General Principles and Requirements
General rules, equations, uncertainty, installation requirements, and discharge coefficients for differential-pressure flow measurement.
ISO 5167-2
Measurement of Fluid Flow by Means of Pressure Differential Devices – Part 2: Orifice Plates
Design, installation, and calculation methods for orifice plate flow meters.
ISO 5167-3
Measurement of Fluid Flow by Means of Pressure Differential Devices – Part 3: Nozzles and Venturi Nozzles
Requirements and equations for ISA nozzles and Venturi nozzles.
ISO 5167-4
Measurement of Fluid Flow by Means of Pressure Differential Devices – Part 4: Venturi Tubes
Design rules, dimensions, installation, and discharge coefficients for Venturi tubes; applicable to subsonic single-phase flow, pipes 50–1200 mm, Re ≥ 2×10⁵.
ISO 5167-5
Measurement of Fluid Flow by Means of Pressure Differential Devices – Part 5: Cone Meters
Standard for differential-pressure cone flow meters; added in the 2022 edition.
ISO 5167-6
Measurement of Fluid Flow by Means of Pressure Differential Devices – Part 6: Wedge Meters
Standard for wedge-type differential-pressure flow meters; added in the 2022 edition.
ISO 4006
Measurement of Fluid Flow in Closed Conduits: Vocabulary and Symbols
Defines all standard terms and symbols used across fluid flow measurement standards including ISO 5167 and ISO 9906.
ISO 5168
Measurement of Fluid Flow — Procedures for the Evaluation of Uncertainties
Establishes general principles and step-by-step procedures for calculating uncertainty of a fluid flow rate or quantity.
ISO 9300
Measurement of Gas Flow by Means of Critical Flow Venturi Nozzles
Specifies critical flow Venturi nozzles for gas flow measurement; referenced as a normative document by ISO 5168.
JCGM 100:2008 (GUM)
Guide to the Expression of Uncertainty in Measurement
Foundational metrology document referenced by ISO 5168 and ASME V&V 20; defines the framework for identifying, combining, and reporting all sources of measurement uncertainty.
ISO/IEC Guide 98-3 (GUM)
Guide to the Expression of Uncertainty in Measurement
International reference for evaluating and reporting measurement uncertainty; equivalent to JCGM 100:2008.
Valvole industriali (16)
ISO 5208
Industrial Valves — Pressure Testing of Metallic Valves
Defines leakage classes and pressure testing procedures for metallic valves.
IEC 60534-1
Industrial-Process Control Valves – Part 1: Control Valve Terminology and General Considerations
Establishes the vocabulary and general guidance used throughout the entire IEC 60534 series.
IEC 60534-2-1
Industrial-Process Control Valves – Part 2-1: Flow Capacity — Sizing Equations for Incompressible Fluid Flow Under Installed Conditions
Core sizing equations for liquids through control valves under real installation conditions.
IEC 60534-2-2
Industrial-Process Control Valves – Part 2-2: Flow Capacity — Sizing Equations for Compressible Fluid Flow Under Installed Conditions
Sizing equations for gases and steam through control valves.
IEC 60534-2-3
Industrial-Process Control Valves – Part 2-3: Flow Capacity — Test Procedures
Defines test procedures for measuring flow capacity variables (Kv, Cv, FL, xT) used in the sizing equations.
IEC 60534-2-4
Industrial-Process Control Valves – Part 2-4: Flow Capacity — Inherent Flow Characteristics and Rangeability
Specifies flow characteristic curves and rangeability definitions for control valves.
IEC 60534-2-5
Industrial-Process Control Valves – Part 2-5: Flow Capacity — Sizing Equations for Fluid Flow Through Multistage Control Valves with Interstage Recovery
Extends sizing methodology to multi-stage valve configurations.
IEC 60534-3-1
Industrial-Process Control Valves – Part 3-1: Dimensions — Face-to-Face Dimensions for Flanged Two-Way Globe-Type Straight and Angle Pattern Control Valves
Standardizes face-to-face and centre-to-face dimensions for DN 15–400.
IEC 60534-3-2
Industrial-Process Control Valves – Part 3-2: Dimensions — Face-to-Face Dimensions for Rotary Control Valves Except Butterfly Valves
Dimensional standard for rotary-type control valves.
IEC 60534-3-3
Industrial-Process Control Valves – Part 3-3: Dimensions — End-to-End Dimensions for Buttweld Two-Way Globe-Type Straight Pattern Control Valves
Specifies buttweld end-to-end dimensions for DN 15–450.
IEC 60534-4
Industrial-Process Control Valves – Part 4: Inspection and Routine Testing
Specifies requirements for inspection and routine testing of control valves manufactured to the IEC 60534 series.
IEC 60534-8-3
Industrial-Process Control Valves – Part 8-3: Noise Considerations — Prediction of Noise Generated by Hydrodynamic Flow
Provides methods for predicting hydrodynamic (liquid) noise in control valves.
IEC 60534-8-4
Industrial-Process Control Valves – Part 8-4: Noise Considerations — Prediction of Noise Generated by Aerodynamic Flow
Provides methods for predicting aerodynamic (gas/steam) noise in control valves.
EN 1267
Industrial Valves — Test of Flow Resistance Using Water as Test Fluid
Specifies the laboratory method for determining valve pressure loss coefficient (ζ) and flow coefficients (Kv and Cv) using water.
EN 12266
Industrial Valves — Testing of Metallic Valves
European standard for pressure and leakage testing of metallic valves.
API 598
Valve Inspection and Testing
Inspection, hydrostatic testing, and leakage acceptance criteria for industrial valves; widely referenced alongside ISO 5208.
Disegno tecnico e GD&T (10)
ISO 1101
Geometrical Product Specifications (GPS) — Geometrical Tolerancing
Defines GD&T symbols and tolerancing methods for engineering drawings.
ISO 8015
Geometrical Product Specifications (GPS) — Fundamentals
Fundamental principles governing the GPS standards family.
ISO 5459
Geometrical Product Specifications (GPS) — Datums and Datum Systems
Definition and application of datum systems in engineering drawings.
ISO 14405
Geometrical Product Specifications (GPS) — Dimensional Tolerancing
Rules for dimensional size tolerancing.
ISO 4287
Geometrical Product Specifications (GPS) — Surface Texture: Profile Method
Defines roughness parameters such as Ra, Rz, and Rt.
ISO 4288
Geometrical Product Specifications (GPS) — Surface Texture Assessment Rules
Procedures for measuring and evaluating surface roughness.
ISO 6892
Metallic Materials — Tensile Testing
Standard tensile test procedures for metallic materials.
ISO 286
ISO System of Limits and Fits
Standard system for dimensional fits and tolerances between mating parts.
ISO 2768
General Tolerances
Default dimensional and geometrical tolerances when none are specified on drawings.
ISO 1302
Indication of Surface Texture in Technical Documentation
Symbols and notation for specifying surface finish on engineering drawings.
Materiali (2)
EN 10025
Hot Rolled Products of Structural Steels
Mechanical properties and requirements for structural steel grades.
ASTM Material Standards
ASTM Standards for Metallic Materials
Material specifications, testing methods, and mechanical property requirements for engineering materials used in valve and pressure equipment manufacturing.
Atmosfere esplosive (ATEX) (9)
IEC 60079-0
Explosive Atmospheres – Part 0: General Requirements
General construction and testing requirements for equipment intended for use in explosive atmospheres.
IEC 60079-1
Explosive Atmospheres – Part 1: Flameproof Enclosures "d"
Requirements for the flameproof explosion protection type.
IEC 60079-7
Explosive Atmospheres – Part 7: Increased Safety "e"
Requirements for increased-safety electrical equipment in hazardous areas.
IEC 60079-10
Explosive Atmospheres – Part 10: Classification of Hazardous Areas
Methods for classifying hazardous gas and dust zones.
IEC 60079-14
Explosive Atmospheres – Part 14: Electrical Installations Design and Installation
Installation requirements for electrical systems in hazardous areas.
EN 1127-1
Explosive Atmospheres — Explosion Prevention and Protection, Part 1: Basic Concepts and Methodology
Identifies and classifies potential ignition sources; for valves the relevant sources are electrostatic discharge and mechanical sparks.
ATEX 2014/34/EU
Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres
EU directive mandatory for market placement; covers design, manufacturing, and certification requirements for ATEX equipment including valves and actuators.
ATEX 1999/92/EC
Minimum Requirements for Improving the Safety and Health Protection of Workers Potentially at Risk from Explosive Atmospheres
Worker protection directive; defines zone classification system (zones 0, 1, 2 for gas; 20, 21, 22 for dust) and employer obligations.
IECEx
IEC International Certification System for Equipment Used in Explosive Atmospheres
International counterpart to ATEX; recognized in 35+ countries and used for export and cross-border project compliance.
Progettazione strutturale e PED (3)
EN 13445
Unfired Pressure Vessels
Design, manufacturing, inspection, and testing requirements for pressure vessels.
EN 13480
Metallic Industrial Piping
Requirements for the design, fabrication, and testing of industrial piping systems.
PED 2014/68/EU
Pressure Equipment Directive
European directive governing the design, manufacture, conformity assessment, and CE marking of pressure equipment and assemblies.
Ventilazione e fluidi (8)
ISO 5801
Industrial Fans — Performance Testing Using Standardized Airways
Performance testing procedures for fans and blowers.
ISO 6358-1
Pneumatic Fluid Power — Determination of Flow-Rate Characteristics of Components Using Compressible Fluids, Part 1: General Rules and Test Methods for Steady-State Flow
Specifies the steady-state method for determining sonic conductance (C) and critical pressure ratio (b) of pneumatic components.
ISO 6358-2
Pneumatic Fluid Power — Determination of Flow-Rate Characteristics of Components Using Compressible Fluids, Part 2: Alternative Test Methods
Specifies discharge and charge tests as alternative methods for determining flow-rate characteristics of pneumatic components.
ISO 4414
Pneumatic Fluid Power — General Rules and Safety Requirements
General requirements for the design and safety of pneumatic systems and components.
ISO 8573
Compressed Air — Contaminants and Purity Classes
Classification of compressed air quality for industrial applications.
ISO 10770-2
Hydraulic Fluid Power — Electrically Modulated Hydraulic Control Valves, Part 2: Test Methods for Three-Port Directional Flow-Control Valves
Defines test methods for characterizing three-port hydraulic directional valves.
ISO 13348
Industrial Fans — Tolerances, Methods of Conversion and Technical Data Presentation
Standard methods for presenting and converting fan performance data.
AMCA Standards
Air Movement and Control Association Standards
Performance, testing, efficiency, and certification standards for fans and air-moving equipment.
Validazione CFD e metrologia (5)
ISO/IEC 17025
General Requirements for the Competence of Testing and Calibration Laboratories
Specifies requirements a laboratory must meet to demonstrate technical competence; relevant if the factory test bench seeks formal accreditation.
ASME V&V 20
Standard for Verification and Validation in Computational Fluid Dynamics and Heat Transfer
Specifies a procedure for quantifying the degree of accuracy of a CFD model by comparing simulation results against experimental data at defined validation points, accounting for numerical and experimental uncertainties.
ASME V&V 10
Guide for Verification and Validation in Computational Solid Mechanics
V&V methodology for solid mechanics simulations; relevant at the CFD–FEM interface.
ERCOFTAC Best Practice Guidelines
Best Practice Guidelines for Industrial CFD
Recommended methodologies for mesh generation, turbulence modeling, convergence, and validation in industrial CFD.
NASA CFD V&V Guidelines
CFD Verification and Validation Guidance
NASA recommendations for ensuring numerical accuracy and validation of CFD models.