NEN NPR 3398 : 1992
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
SEWERAGE SYSTEMS OUTSIDE BUILDINGS - INSPECTION AND CONDITION-ASSESSMENT OF SEWERS
22-12-2003
12-01-2013
Provides directions for the inspection of sewers and the conversion of the inspection results to maintenance urgency and repair or replacement urgency.
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