Resumen
ISO 9921:2003 specifies the requirements for the performance of speech communication for verbal alert and danger signals, information messages, and speech communication in general. Methods to predict and to assess the performance in practical applications are described and examples are given.
Informaciones generales
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Estado: PublicadoFecha de publicación: 2003-10Etapa: Norma Internacional confirmada [90.93]
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Edición: 1Número de páginas: 28
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Comité Técnico :ISO/TC 159/SC 5ICS :13.180
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Ciclo de vida
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Anteriormente
RetiradaISO 9921-1:1996
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Ahora
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