NES 847 : ISSUE 1
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
AIRBORNE NOISE TESTS FOR EQUIPMENTS AND MACHINERY TO BE INSTALLED IN HM SHIPS, SUBMARINES AND ROYAL FLEET AUXILIARIES
01-04-2000
12-01-2013
Defines the airborne noise tests to be applied to any equipment or machinery at the prototype stage, first off of each production order, subsequent units of a production order and on refit or repair of a unit. Excludes Whistles, hooters, bells and gongs used under the International Regulations for Prevention of Collisions at Sea, but includes the machinery supplying energy to these warning devices. Also excludes weapon firings by means of explosive or rocket.
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