NS EN 12889 : 1ED 2000
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
TRENCHLESS CONSTRUCTION AND TESTING OF DRAINS AND SEWERS
10-12-2022
12-01-2013
Foreword
1 Scope
2 Normative references
3 Definitions
4 General
5 Construction components and materials
5.1 General
5.2 Pipes and joints
5.3 Manholes and inspection chambers
5.4 Delivery, handling and transportation
on site
5.5 Storage
6 Techniques
6.1 Unmanned techniques
6.2 Manned techniques
7 Requirements
7.1 Safeguarding design assumptions
7.2 Special requirements
7.3 Safeguarding design assumptions
7.4 Information about ground conditions
7.5 Data collection during installation
7.6 Stability during construction
7.7 Overcut
7.8 Overbreak
7.9 Settlement and heave
7.10 Deviation in line and level
8 Inspection and/or testing of pipelines after
installation
8.1 Visual inspection
8.2 Leaktightness
9 Procedures and requirements for testing gravity
pipelines
9.1 General
9.2 Testing with air (Method "L")
9.3 Testing with water (Method "W")
9.4 Testing of each individual joint
10 Testing of pressure pipelines
11 Qualification
Annex A (informative) Abstract from Council Directive
of 17 September 1990 on the procurement
procedures of entities operating in the water,
energy, transport and telecommunication sectors
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