M00001495
New product
ISO TS 16976-4 1st Edition, June 15, 2012 Respiratory protective devices - Human factors - Part 4: Work of breathing and breathing resistance: Physiologically based limits
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Availability date: 07/13/2021
Description / Abstract:
This Technical Specification 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 Technical Specification
describes how much additional impediment people can tolerate and
contains values that can be used to judge the acceptability of an
RPD.
NOTE 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.