CEN/TC 156/WG 17 - Fans

This document specifies the dimensions of the circular and rectangular flanges of general‑purpose fans, as well as the fan size designations. It is not applicable to cross‑flow fans or to fan appliances used for individual household or similar applications.
For circular flanges, it provides for three different flange series: one for light‑duty casing thicknesses, another for medium‑duty fans and the third for heavy‑duty fans as used on sea-going vessels or in heavy industry.
In order not to restrict fan design unduly, only the pitch diameter, hole numbers and hole diameters are specified. Flange thickness, as well as internal and external flange diameters, can be chosen freely within the limits of good engineering practice.

This document defines categories in the field of fans used for all purposes.
It is not applicable to electrical safety.

ISO 5801:2017 specifies procedures for the determination of the performance of fans of all types except those designed solely for air circulation, e.g. ceiling fans and table fans. Testing of jet fans is described in ISO 13350.
ISO 5801:2017 provides estimates of uncertainty of measurement and rules for the conversion, within specified limits, of test results for changes in speed, gas handled and, in the case of model tests, size are given.

ISO 13350:2015 deals with the determination of those technical characteristics needed to describe all aspects of the performance of jet fans as defined in ISO 13349. It does not cover those fans designed for ducted applications, nor those designed solely for air circulation, e.g. ceiling fans and table fans.
The test procedures described in this International Standard relate to laboratory conditions. The measurement of performance under on-site conditions is not included.

2014-09-26: Draft received at ISO/CS for // vote (see ISO notification in dataservice on 2014-09-26).
MINOR Amendment - MINOR Amendment - MINOR Amendment

This European Standard specifies requirements for the mechanical guarding of industrial fans.
The circumstances under which safety measures shall be taken are described and information on how hazards can be reduced or eliminated is given, along with guidance on safety practices and information for use.

This European Standard specifies tests for determining one or more performance characteristics of fans installed in an operational circuit when handling a monophase fluid.

This document provides procedures and methods for measuring and/or calculating the energy efficiency and associated characteristics of fans when driven by electric motors. This document deals with the following fan types;
-   axial fan;
-   centrifugal forward curved fan, centrifugal radial bladed fan;
-   centrifugal backward curved fan without housing, including centrifugal backward aerofoil fans;
-   centrifugal backward curved fan with housing, including centrifugal backward aerofoil fans;
-   mixed flow fan;
-   cross flow fan;
-   jet fan.
It provides procedures and methods to evaluate the compliance of the fan efficiency against minimum efficiency requirements.
This document includes stand-alone fans and fans that are integrated in other products. It gives guidance to manufacturers in providing information to surveillance authorities to describe the full extent of the fan by describing boundaries, significant elements and additional parts.
Some units previously identified as fans are now defined as Uni-Directional Ventilation Units. This document explains and shows by way of examples the difference between fans and Uni-Directional Ventilation Units.
This standard does not include:
-   Uni-Directional Ventilation Units;
-   fans that are designed specifically to operate in toxic, highly corrosive or flammable environments or in environments with abrasive substances, see Annex C.

ISO 13349:2010 defines terms and categories in the field of fans used for all purposes.
It is not applicable to electrical safety.

ISO 13351:2009 specifies the dimensions of the circular and rectangular flanges of general‑purpose fans, as well as the fan size designations. It is not applicable to cross‑flow fans or to fan appliances used for individual household or similar applications.

ISO 5801:2007 deals with the determination of the performance of industrial fans of all types except those designed solely for air circulation e.g. ceiling fans and table fans.
Estimates of uncertainty of measurement are provided and rules for the conversion, within specified limits, of test results for changes in speed, gas handled and, in the case of model tests, size, are given.

This International Standard deals with the determination of those technical characteristics needed to describe all aspects
of the performance of jet fans as defined in ISO 13349. It does not cover those fans designed for ducted applications, nor
those designed solely for air circulation, e.g. ceiling fans and table fans.
The test procedures described in this International Standard relate to laboratory conditions. The measurement of performance under on-site conditions is not included.