Shfuqizuar
ISO/TS 16976-4:2012 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. ISO/TS 16976-4:2012 describes how much additional impediment people can tolerate and contains values that can be used to judge the acceptability of an RPD.
WITHDRAWN
ISO/TS 16976-4:2012
95.99
Withdrawal of Standard
29 mar 2019
WITHDRAWN
ISO/TS 16976-4:2019