Hearing aids. Methods for measurement of electroacoustical characteristics of hearing aid equipment not entirely worn on the listener.

UNGÜLTIG herausgegeben am 29.6.1984

Hearing aids. Methods for measurement of electroacoustical characteristics of hearing aid equipment not entirely worn on the listener.

UNGÜLTIG herausgegeben am 28.2.1991

Hearing aids. Specification for magnetic field strength in audio-frequency induction loops for hearing aid purposes.

UNGÜLTIG herausgegeben am 31.12.1981

Hearing aids. Methods for measurement of the performance characteristics of hearing aids under simulated in situ working conditions.

UNGÜLTIG herausgegeben am 28.2.1985

Hearing aids. Methods for measurement of characteristics of hearing aids with bone vibrator output.

UNGÜLTIG herausgegeben am 28.11.1986

Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1000 V. General. Performance, testing and rating. Safety requirements. Guide for installation and operation.

UNGÜLTIG herausgegeben am 15.3.1994

Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1kV. General. Performance, testing and rating. Safety requirements. Guide for installation and operation.

UNGÜLTIG herausgegeben am 10.3.2004

Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1000 V. Ageing test, self-healing test and destruction test.

UNGÜLTIG herausgegeben am 15.3.1994

Shunt power capacitors of the self-healing type for a.c. systems having a rated voltage up to and including 1000 V. Ageing test, self-healing test and destruction test.

UNGÜLTIG herausgegeben am 15.10.1996

Specification for insulating poles (insulating sticks) and universal tool attachments (fittings) for live working.

UNGÜLTIG herausgegeben am 14.8.2002