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NEN HD 638 : 2002 AMD 1 2006
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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ROAD TRAFFIC SIGNAL SYSTEMS
Superseded date
22-03-2011
Published date
12-01-2013
Publisher
Describes requirements for road traffic signal systems, including their development, design, testing, installation and maintenance.
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