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BS ISO 12759-1:2023

BS ISO 12759-1:2023

$142.49

Fans. Efficiency classification for fans – General requirements

Published By Publication Date Number of Pages
BSI 2023 28
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PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
16 4 Symbols and units
5 General requirements
5.1 General
17 5.2 Identify the fan type
5.3 Identify an appropriate installation category
18 6 Testing and calculation methods
6.1 General
6.2 Test method
6.3 Significant elements
19 6.4 Requirements of testing and calculation
6.4.1 General
6.4.2 Choice of testing or calculation method
6.4.3 Full-size, maximum declared operating speed testing on a standardised airway
20 6.4.4 Testing using the scaling rules for fan performance
6.4.5 Full-size testing at modified-speed on a standardised airway
6.4.6 Subscale testing on a standardised airway
21 6.5 Tolerances
7 Ratings
22 Annex A (informative) Protective guards
24 Annex B (informative) Fan efficiency, energy effectiveness and specific fan power (SFP)
26 Annex C (informative) The variation of fan performance between installation categories
27 Bibliography

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BS ISO 12759-1:2023
$142.49