hearing impairment

hearing impairment, Total:6 items.

In the international standard classification, hearing impairment involves: Protection against crime, Telecommunication systems, Alarm and warning systems.

Professional Standard - Public Safety Standards, hearing impairment

• GA/T 914-2010 Forensic medical assessment of the hearing disorders

Professional Standard - Post and Telecommunication, hearing impairment

• YD/T 2099-2010 Information accessibility technical requirements for deaf assistant system in public place

Underwriters Laboratories (UL), hearing impairment

• UL 1971-1995 Signaling devices for the hearing impaired
• UL 1971-2018 Signaling devices for the hearing impaired
• UL 1971-1992 Signaling devices for the hearing impaired
• UL 1971-2002 UL Standard for Safety Signaling Devices for the Hearing Impaired Third Edition; Reprint with Revisions Through and Including May 19, 2006

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