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BS 848-9:2007

BS 848-9:2007

Current

Current

The latest, up-to-date edition.

Fans for general purposes. Tolerances, methods of conversion and technical data presentation

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

02-28-2007

Publisher

British Standards Institution

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Performance tolerances for purpose-designed fans
  and series-produced non-certified fans
  5.1 Information to be provided by the purchaser
  5.2 Information to be provided by the supplier
  5.3 Tolerances
  5.4 Purchasing arrangements
  5.5 Contractual testing
6 Performance tolerances for series-produced fans
  in certified ratings programmes
  6.1 General
  6.2 Fan laws
  6.3 Check-tests
  6.4 Air performance tolerances
  6.5 Sound tolerances
7 Methods of conversion
  7.1 Conversion of air performance test data
  7.2 Conversion of sound power test data
8 Technical data presentation
  8.1 General
  8.2 Essential information
  8.3 Fan performance chart
  8.4 Additional information
Annex A (normative) Documentation
Annex B (normative) Marking
Annex C (informative) System resistance as a function
                      of flowrate
Bibliography

Specifies performance tolerances and the technical data presentation of industrial fans of all types.

This International Standard specifies performance tolerances and the technical data presentation of industrial fans of all types. It does not apply for fans designed solely for low-volume air circulation, such as those used for household or similar purposes (ceiling and table fans, extractor fans, etc.). For jet fans refer to ISO 13350.

The upper limit of fan work per unit mass is normally 25 kJ kg-1, corresponding to an increase of fan pressure of approximately 30 kPa for a mean density in the fan of 1,2 kg m-3. For higher values, agreement is to be reached between the supplier and the user.

This International Standard embraces the four installation categories defined in ISO 5801:

A free inlet, free outlet;
B free inlet, ducted outlet;
C ducted inlet, free outlet;
D ducted inlet, ducted outlet.

The performance of a fan can vary considerably with the installation category it is operating within. Therefore, these categories form an important part of the definition of the fan\'s technical data presentation.

NOTE International acceptance of the four installation categories provides the opportunity to base a contract on the most appropriate fan category for the end user and the system designer. Correspondingly, the likelihood of the fan providing the agreed performance, without compromise or concession, is enhanced.

Committee
MCE/17
DevelopmentNote
Supersedes BS 849-9(2006). Also numbered as ISO 13348. (02/2007)
DocumentType
Standard
Pages
62
PublisherName
British Standards Institution
Status
Current
Supersedes

ISO 10302:1996 Acoustics Method for the measurement of airborne noise emitted by small air-moving devices
AMCA 99 : 2016 STANDARDS HANDBOOK
ISO 12499:1999 Industrial fans Mechanical safety of fans Guarding
ISO 5802:2001 Industrial fans — Performance testing in situ
AMCA 301 : 2014 METHODS FOR CALCULATING FAN SOUND RATINGS FROM LABORATORY TEST DATA
VDI 2044:2002-11 Acceptance and performance tests on fans (VDI code of practice for fans)
ISO 5168:2005 Measurement of fluid flow — Procedures for the evaluation of uncertainties
ISO 14694:2003 Industrial fans Specifications for balance quality and vibration levels
ISO 266:1997 Acoustics — Preferred frequencies
AMCA 211 : 2017 CERTIFIED RATINGS PROGRAM - PRODUCT RATING MANUAL FOR FAN AIR PERFORMANCE
AMCA 311 : 2016 CERTIFIED RATINGS PROGRAM - PRODUCT RATING MANUAL FOR FAN SOUND PERFORMANCE
ISO 13351:2009 Fans — Dimensions
ISO 281:2007 Rolling bearings Dynamic load ratings and rating life
ISO 13350:2015 Fans Performance testing of jet fans
AMCA 11 : 2016 CERTIFIED RATINGS PROGRAM OPERATING MANUAL
ISO 5801:2017 Fans — Performance testing using standardized airways
AMCA 200 : 1995(R2011) AIR SYSTEMS
ISO 14695:2003 Industrial fans Method of measurement of fan vibration
AMCA 201 : 2002(R2011) FANS AND SYSTEMS
AMCA 111 : 2013 LABORATORY ACCREDITATION PROGRAM
ISO 13347-1:2004 Industrial fans — Determination of fan sound power levels under standardized laboratory conditions — Part 1: General overview
AMCA 802 : 2002(R2008) INDUSTRIAL PROCESS/POWER GENERATION FANS - ESTABLISHING PERFORMANCE USING LABORATORY MODELS
ISO 5136:2003 Acoustics — Determination of sound power radiated into a duct by fans and other air-moving devices — In-duct method
ISO 13349:2010 Fans — Vocabulary and definitions of categories

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