NBN ISO 16976-4:2023

Respiratory protective devices — Human factors — Part 4: Work of breathing and breathing resistance: physiologically based limits (ISO 16976-4:2023)

ACTIVE

About this standard

Languages
English and French
Type
NBN
Standards committee
ISO/TC 94/SC 15 (Respiratory protective devices)
Status
ACTIVE
Publication date
21 June 2023
ICS Code
13.340.30 (Respiratory protective devices)
Withdrawn Date
Price
€ 92,00

Summary

< p class=" MsoBodyText" style=" mso-layout-grid-align: none text-autospace: none " > < span lang=" EN-GB" style=" mso-bidi-font-size: 12.0pt " > This document describes how to calculate the work performed by a person’s respiratory muscles with and without the external respiratory impediments that are imposed by RPD of all kinds, except diving equipment. This document describes how much additional impediment people can tolerate and contains values that can be used to judge the acceptability of an RPD.< / span>


< p class=" Note" style=" tab-stops: 19.85pt 39.7pt 48.25pt 59.55pt 79.4pt 99.25pt 119.05pt 138.9pt 158.75pt 178.6pt 7.0cm mso-layout-grid-align: none text-autospace: none " > < span lang=" EN-GB" style=" mso-bidi-font-size: 12.0pt " > NOTE< span style=" mso-tab-count: 1 " >        < / span> These calculations are explained in some textbooks on respiratory physiology (in the absence of an RPD), but most omit them or are incomplete in their explanations.< / span>