EN 253:2009+A2:2015
Superseded
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene
Superseded date
26-10-2019
Superseded by
Published date
21-10-2015
Publisher
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European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
5 Test methods
6 Marking
Annex A (informative) - Relation between actual
continuous operating conditions and
accelerated ageing test conditions
Annex B (informative) - Calculation of the minimum
expected thermal life with operation at
various temperatures with respect to PUR
foam performance
Annex C (normative) - Calculated Continuous Operating
Temperature (CCOT)
Annex D (informative) - Guidelines for inspection
and testing
Annex E (informative) - Radial creep behaviour of the
polyurethane foam (PUR)
Annex F (normative) - Thermal conductivity of
pre-insulated pipes - Test procedure
Annex G (informative) - National A-deviations
Annex H (informative) - Main changes from the previous
edition of EN 253
Annex I (informative) - Waste treatment and recycling
Bibliography
This European Standard specifies requirements and test methods for straight lengths of prefabricated thermally insulated pipe-in-pipe assemblies for directly buried hot water networks, comprising a steel service pipe from DN 15 to DN 1200, rigid polyurethane foam insulation and an outer casing of polyethylene. The pipe assembly may also include the following additional elements: measuring wires, spacers and diffusion barriers.This standard applies only to insulated pipe assemblies, for continuous operation with hot water at various temperatures up to 120 °C and occasionally with a peak temperature up to 140 °C.The estimation of expected thermal life with continuous operation at various temperatures is outlined in Annex B.
| Committee |
CEN/TC 107
|
| DevelopmentNote |
2009 Edition Re-Issued in October 2015 & incorporates AMD 2 2015. (10/2015) Supersedes UNE EN 253. (02/2016)
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| UNI EN 253:2016 | Identical |
| ONORM EN 253 : 2015 | Identical |
| I.S. EN 253:2009 | Identical |
| BS EN 253 : 2009 | Identical |
| NF EN 253 : 2009 + A2 2015 | Identical |
| UNI EN 253 : 2013 | Identical |
| NS EN 253 : 2009 + A2 2015 | Identical |
| PN EN 253 : 2009 + A2 2015 | Identical |
| SN EN 253 : 2009 + A2 2016 | Identical |
| NBN EN 253 : 2009 + A2 2015 | Identical |
| DIN EN 253:2015-12 | Identical |
| NEN EN 253 : 2009 + A2 2015 | Identical |
| DS EN 253 : 2009 + A2 2015 | Identical |
| UNE-EN 253:2009+A2:2015 | Identical |
| 14/30294476 DC : 0 | BS EN 448 - DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - FITTING ASSEMBLIES OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| 09/30186448 DC : 0 | BS EN 13941 - DESIGN AND INSTALLATION OF REINSULATED BONDED PIPE SYSTEMS FOR DISTRICT HEATING |
| 09/30197069 DC : 0 | BS EN 488 - DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| 13/30291075 DC : 0 | BS EN 15698-2 - DISTRICT HEATING PIPES - PREINSULATED BONDED TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 2: FITTING AND VALVE ASSEMBLY OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| BS ISO 9631:2018 | Rubber seals. Joint rings for pipelines for hot-water supply up to 110 °C. Specification for the material |
| 18/30368654 DC : 0 | BS EN 488 - DISTRICT HEATING PIPES - BONDED SINGLE PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - FACTORY MADE STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND A CASING OF POLYETHYLENE |
| BS EN 15698-2:2015 | District heating pipes. Preinsulated bonded twin pipe systems for directly buried hot water networks Fitting and valve assembly of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene |
| UNI EN 12977-1 : 2012 | THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS |
| S.R. CEN TS 12977-1:2010 | THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS |
| I.S. EN 14419:2009 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - SURVEILLANCE SYSTEMS |
| I.S. EN 488:2015 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| I.S. EN 448:2015 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - FITTING ASSEMBLIES OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| BS EN 489:2009 | District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene |
| BS EN 14419:2009 | District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Surveillance systems |
| DIN EN 13941:2003-10 | DESIGN AND INSTALLATION OF PREINSULATED BONDED PIPE SYSTEMS FOR DIRECT HEATING |
| 16/30342037 DC : 0 | BS EN 13941-1 - DISTRICT HEATING PIPES - DESIGN AND INSTALLATION OF THERMAL INSULATED BONDED SINGLE AND TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 1: DESIGN |
| 17/30360921 DC : 0 | BS EN 489-1 - DISTRICT HEATING PIPES - BONDED SINGLE AND TWIN PIPE SYSTEMS FOR BURIED HOT WATER NETWORKS - PART 1: JOINT CASING ASSEMBLIES AND THERMAL INSULATION FOR HOT WATER NETWORKS IN ACCORDANCE WITH EN 13941-1 |
| 07/30160790 DC : 0 | BS EN 15632-1 - DISTRICT HEATING PIPES - PRE-INSULATED FLEXIBLE PIPE SYSTEMS - PART 1: CLASSIFICATION, GENERAL REQUIREMENTS AND TEST METHODS |
| 14/30294473 DC : 0 | BS EN 488 - DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| DD CEN/TS 12977-1:2010 | Thermal solar systems and components. Custom built systems General requirements for solar water heaters and combisystems |
| DIN EN 15698-2:2015-11 | DISTRICT HEATING PIPES - PREINSULATED BONDED TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 2: FITTING AND VALVE ASSEMBLY OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| 07/30153360 DC : 0 | BS EN 489 - DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - JOINT ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| I.S. EN 12977-1:2012 | THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS |
| BS EN 15632-1 : 2009 | DISTRICT HEATING PIPES - PRE-INSULATED FLEXIBLE PIPE SYSTEMS - PART 1: CLASSIFICATION, GENERAL REQUIREMENTS AND TEST METHODS |
| BS EN 15698-1:2009 | District heating pipes. Preinsulated bonded twin pipe systems for directly buried hot water networks Twin pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene |
| I.S. EN ISO 12736:2014 | PETROLEUM AND NATURAL GAS INDUSTRIES - WET THERMAL INSULATION COATINGS FOR PIPELINES, FLOW LINES, EQUIPMENT AND SUBSEA STRUCTURES (ISO 12736:2014) |
| ISO 9631:2018 | Rubber seals — Joint rings for pipelines for hot-water supply up to 110 °C — Specification for the material |
| I.S. EN 13941:2009 | DESIGN AND INSTALLATION OF PREINSULATED BONDED PIPE SYSTEMS FOR DISTRICT HEATING |
| 11/30187339 DC : 0 | BS EN ISO 12736 - PETROLEUM AND NATURAL GAS INDUSTRIES - WET THERMAL INSULATION COATINGS FOR PIPELINES, FLOW LINES, EQUIPMENT AND SUBSEA STRUCTURES |
| 16/30342040 DC : 0 | BS EN 13941-2 - DISTRICT HEATING PIPES - DESIGN AND INSTALLATION OF THERMAL INSULATED BONDED SINGLE AND TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 2: INSTALLATION |
| PREN 13941 : DRAFT 2009 | DESIGN AND INSTALLATION OF REINSULATED BONDED PIPE SYSTEMS FOR DISTRICT HEATING |
| UNI CEN/TS 12977-1 : 2010 | THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS |
| EN 12977-1:2018 | Thermal solar systems and components - Custom built systems - Part 1: General requirements for solar water heaters and combisystems |
| DIN EN 448:2016-02 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - FITTING ASSEMBLIES OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| DIN EN 488:2016-02 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| I.S. EN 489:2009 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - JOINT ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| EN 488:2015 | District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene |
| UNI EN 489 : 2009 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - JOINT ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| UNI EN 13941 : 2011 | DESIGN AND INSTALLATION OF PREINSULATED BONDED PIPE SYSTEMS FOR DISTRICT HEATING |
| UNI EN 14419 : 2009 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - SURVEILLANCE SYSTEMS |
| BS EN ISO 12736:2014 | Petroleum and natural gas industries. Wet thermal insulation coatings for pipelines, flow lines, equipment and subsea structures |
| 02/705050 DC : DRAFT APR 2002 | PREN 14419 - DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - SURVEILLANCE SYSTEMS |
| DIN EN 12977-1:2016-08 (Draft) | THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS |
| UNE-EN 15632-1:2010 | District heating pipes - Pre-insulated flexible pipe systems - Part 1: Classification, general requirements and test methods |
| BS EN 12977-1:2012 | Thermal solar systems and components. Custom built systems General requirements for solar water heaters and combisystems |
| I.S. EN 15698-1:2009 | DISTRICT HEATING PIPES - PREINSULATED BONDED TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 1: TWIN PIPE ASSEMBLY OF STEEL SERVICE PIPE, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| 07/30165568 DC : 0 | BS EN 448 - DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - FITTING ASSEMBLIES OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| I.S. EN 15698-2:2015 | DISTRICT HEATING PIPES - PREINSULATED BONDED TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 2: FITTING AND VALVE ASSEMBLY OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| DIN EN 489:2009-07 | District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene; German and English version EN 489:2009 |
| UNE-EN 488:2012 | District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene |
| BS EN 488:2015 | District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Steel valve assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene |
| ISO 12736:2014 | Petroleum and natural gas industries Wet thermal insulation coatings for pipelines, flow lines, equipment and subsea structures |
| BS EN 13941 : 2009 | DESIGN AND INSTALLATION OF PREINSULATED BONDED PIPE SYSTEMS FOR DISTRICT HEATING |
| EN 15698-1:2009 | District heating pipes - Preinsulated bonded twin pipe systems for directly buried hot water networks - Part 1: Twin pipe assembly of steel service pipe, polyurethane thermal insulation and outer casing of polyethylene |
| EN 489:2009 | District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene |
| EN 14419:2009 | District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Surveillance systems |
| EN 13941:2009+A1:2010 | Design and installation of preinsulated bonded pipe systems for district heating |
| EN 15698-2:2015 | District heating pipes - Preinsulated bonded twin pipe systems for directly buried hot water networks - Part 2: Fitting and valve assembly of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene |
| EN 15632-1:2009+A1:2014 | District heating pipes - Pre-insulated flexible pipe systems - Part 1: Classification, general requirements and test methods |
| EN ISO 12736:2014 | Petroleum and natural gas industries - Wet thermal insulation coatings for pipelines, flow lines, equipment and subsea structures (ISO 12736:2014) |
| EN 448:2015 | District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene |
| DD ENV 12977-1:2001 | Thermal solar systems and components. Custom built systems General requirements |
| UNI EN 15698-1 : 2009 | DISTRICT HEATING PIPES - PREINSULATED BONDED TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 1: TWIN PIPE ASSEMBLY OF STEEL SERVICE PIPE, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| 07/30165766 DC : 0 | BS EN 15698-1 - DISTRICT HEATING PIPES - PREINSULATED BONDED TWIN PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - PART 1: TWIN PIPE ASSEMBLY OF STEEL SERVICE PIPE, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| DIN EN 15632-1:2015-03 | District heating pipes - Pre-insulated flexible pipe systems - Part 1: Classification, general requirements and test methods (includes Amendment A1:2014) |
| PREN 448 : DRAFT 2018 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - FITTING ASSEMBLIES OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| 18/30368651 DC : 0 | BS EN 448 - DISTRICT HEATING PIPES - BONDED SINGLE PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - FACTORY MADE FITTING ASSEMBLIES OF STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND A CASING OF POLYETHYLENE |
| PREN 488 : DRAFT 2018 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - STEEL VALVE ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| BS EN 448:2015 | District heating pipes. Preinsulated bonded pipe systems for directly buried hot water networks. Fitting assemblies of steel service pipes, polyurethane thermal insulation and outer casing of polyethylene |
| I.S. EN 15632-1:2009 | DISTRICT HEATING PIPES - PRE-INSULATED FLEXIBLE PIPE SYSTEMS - PART 1: CLASSIFICATION, GENERAL REQUIREMENTS AND TEST METHODS |
| CEN/TS 12977-1:2010 | Thermal solar systems and components - Custom built systems - Part 1: General requirements for solar water heaters and combisystems |
| DIN EN 12977-1:2012-06 | THERMAL SOLAR SYSTEMS AND COMPONENTS - CUSTOM BUILT SYSTEMS - PART 1: GENERAL REQUIREMENTS FOR SOLAR WATER HEATERS AND COMBISYSTEMS |
| DIN EN 14419:2004-03 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - SURVEILLANCE SYSTEMS |
| DIN EN 489:2003-05 | DISTRICT HEATING PIPES - PREINSULATED BONDED PIPE SYSTEMS FOR DIRECTLY BURIED HOT WATER NETWORKS - JOINT ASSEMBLY FOR STEEL SERVICE PIPES, POLYURETHANE THERMAL INSULATION AND OUTER CASING OF POLYETHYLENE |
| EN 13941:2009+A1:2010 | Design and installation of preinsulated bonded pipe systems for district heating |
| EN ISO 9692-1:2013 | Welding and allied processes - Types of joint preparation - Part 1: Manual metal arc welding, gas-shielded metal arc welding, gas welding, TIG welding and beam welding of steels (ISO 9692-1:2013) |
| EN ISO 3126:2005 | Plastics piping systems - Plastics components - Determination of dimensions (ISO 3126:2005) |
| EN ISO 12162:2009 | Thermoplastics materials for pipes and fittings for pressure applications - Classification, designation and design coefficient (ISO 12162:2009) |
| ISO 8501-1:2007 | Preparation of steel substrates before application of paints and related products — Visual assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings |
| ISO 13953:2001 | Polyethylene (PE) pipes and fittings — Determination of the tensile strength and failure mode of test pieces from a butt-fused joint |
| EN 728:1997 | Plastics piping and ducting systems - Polyolefin pipes and fittings - Determination of oxidation induction time |
| EN ISO 8497:1996 | Thermal insulation - Determination of steady-state thermal transmission properties of thermal insulation for circular pipes (ISO 8497:1994) |
| ISO 16770:2004 | Plastics Determination of environmental stress cracking (ESC) of polyethylene Full-notch creep test (FNCT) |
| ISO 3127:1994 | Thermoplastics pipes — Determination of resistance to external blows — Round-the-clock method |
| ISO 6964:1986 | Polyolefin pipes and fittings Determination of carbon black content by calcination and pyrolysis Test method and basic specification |
| ISO 9080:2012 | Plastics piping and ducting systems — Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation |
| ISO 8497:1994 | Thermal insulation — Determination of steady-state thermal transmission properties of thermal insulation for circular pipes |
| EN 10216-2:2013 | Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties |
| EN ISO 9080:2012 | Plastics piping and ducting systems - Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation (ISO 9080:2012) |
| ISO 11414:2009 | Plastics pipes and fittings Preparation of polyethylene (PE) pipe/pipe or pipe/fitting test piece assemblies by butt fusion |
| ISO 12162:2009 | Thermoplastics materials for pipes and fittings for pressure applications Classification, designation and design coefficient |
| ISO 9692-1:2013 | Welding and allied processes — Types of joint preparation — Part 1: Manual metal arc welding, gas-shielded metal arc welding, gas welding, TIG welding and beam welding of steels |
| EN 14419:2009 | District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Surveillance systems |
| ISO 3126:2005 | Plastics piping systems Plastics components Determination of dimensions |
| EN ISO 9001:2015 | Quality management systems - Requirements (ISO 9001:2015) |
| EN 489:2009 | District heating pipes - Preinsulated bonded pipe systems for directly buried hot water networks - Joint assembly for steel service pipes, polyurethane thermal insulation and outer casing of polyethylene |
| EN 10204:2004 | Metallic products - Types of inspection documents |
| ISO 9001:2015 | Quality management systems — Requirements |
| EN ISO 8501-1:2007 | Preparation of steel substrates before application of paints and related products - Visual assessment of surface cleanliness - Part 1: Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings (ISO 8501-1:2007) |
| EN ISO 2505:2005 | Thermoplastics pipes - Longitudinal reversion - Test method and parameters (ISO 2505:2005) |
| EN ISO 1133:2005 | Plastics - Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics (ISO 1133:2005) |
| EN 10220:2002 | Seamless and welded steel tubes - Dimensions and masses per unit length |
| ISO 844:2014 | Rigid cellular plastics Determination of compression properties |
| ISO 1133:2005 | Plastics Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics |
| ISO 2505:2005 | Thermoplastics pipes — Longitudinal reversion — Test method and parameters |
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