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BS ISO 16976-4:2023

BS ISO 16976-4:2023

$142.49

Respiratory protective devices. Human factors – Work of breathing and breathing resistance: physiologically based limits

Published By Publication Date Number of Pages
BSI 2023 26
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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
10 4 Symbols and abbreviated terms
11 5 Pressure and volume changes during breathing
5.1 Pressure and volume changes in the absence of an RPD
14 5.2 The effect of RPD flow resistance on pressure and volume changes while using an RPD
5.3 The effect of RPD with static pressure on pressure and volume changes while using an RPD
15 5.4 The effect of RPD flow resistance and static pressure on pressure and volume changes while using an RPD
5.5 Effects of high static pressure
16 6 Work of breathing (WoB)
6.1 Physiological work versus physical work
6.1.1 General
6.1.2 Static work
6.1.3 Elastic work
17 6.1.4 Positive and negative physical work
6.2 Calculations of inspiratory WoB
6.3 Calculations of expiratory WoB
18 6.4 Calculations of total WoB
6.4.1 Calculations of the wearer’s WoB while using an RPD
6.4.2 Calculations of WoB for an RPD only
19 6.5 Breathing resistance
6.6 Physiologically acceptable WoB
21 7 Other respiratory loads
7.1 Static load
7.2 Elastic loads
7.3 Other loads
7.4 How respiratory loads add up
22 8 Summary
23 Bibliography

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BS ISO 16976-4:2023
$142.49