ISO 16976-4:2023
International Standard
Current Edition
·
Approved on
07 February 2023
Respiratory protective devices — Human factors — Part 4: Work of breathing and breathing resistance: physiologically based limits
ISO 16976-4:2023 Files
English
16 Pages
Current Edition
BHD
46.8
ISO 16976-4:2023 Scope
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.
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.
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
BH GSO 150-2:2015
GSO 150-2:2013
Bahraini Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
BH GSO 2055-1:2016
GSO 2055-1:2015
Bahraini Technical Regulation
HALAL FOOD - Part 1 : General Requirements
GSO 2055-1:2015
Gulf Technical Regulation
HALAL FOOD - Part 1 : General Requirements
Recently Published
ISO/IEC 19896-2:2026
International Standard
Information security, cybersecurity and privacy protection — Requirements for the competence of IT security conformance assessment body personnel — Part 2: Knowledge and skills requirements for testers and validators according to ISO/IEC 19790 and ISO/IEC 24759
ISO 19067:2026
International Standard
Building and civil engineering sealants — Determination of changes in colour after laboratory accelerated weathering procedures
ISO 18962:2026
International Standard
Ships and marine technology — Installation and operational requirements for swappable batteries on ships
ISO/IEC 9995-11:2026
International Standard
Information technology — Keyboard layouts for office systems — Part 11: Functionality and labelling of dead keys