ISO 9921-1:1996Withdrawn

Ergonomic assessment of speech communication — Part 1: Speech interference level and communication distances for persons with normal hearing capacity in direct communication (SIL method)

Évaluation ergonomique de la communication parlée — Partie 1: Niveau d'interférence avec la parole et les distances de communication pour des personnes ayant une capacité d'audition normale en communication directe (méthode SIL)

This edition has been replaced by ISO 9921:2003.

Abstract / scope

Provides a method for prediction of the effectiveness of speech communication in the presence of noise generated by machinery as well as in noisy environment. Parameters are the ambient noise at the speaker's position, ambient noise at the listener's position, distance between the communication partners and a great number of physical and personal conditions.

Life cycle

Replaced by

ISO 9921:2003PublishedErgonomics — Assessment of speech communicationInternational Standard · Published 22 Oct 2003 · ISO/TC 159/SC 5