Respiratory protective devices - Human factors, Part 4: Work of breathing and breathing resistance: Physiologically based limits
呼吸防护装置.人为因素 第4部分:呼吸功和呼吸阻力:生理限制
Identically adopts ISO/TS 16976 4:2019, which describes how to calculate the work performed by a persons 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. KEYWORDS: Respiratory Protective Devices; Calculation of work; Impediments to respiratory muscles