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DD CEN TS — European Technical Specifications (CEN/TS) Single-File Series Overview (62 Standards)
European Technical Specification (CEN/TS) Single-File Series Overview — 62 Standards Adopted as Drafts for Development
📋 DD CEN/TS (Draft for Development CEN/TS) are European technical specifications adopted by the British Standards Institution (BSI) in its Draft for Development series. When a CEN technical committee has reached agreement on a technology that is not yet mature enough for a full European Standard (EN), the committee issues a CEN/TS; BSI then adopts it as a DD so that UK industry can trial it and provide feedback, typically over a three-year provisional life, after which CEN decides whether to convert it into an EN, extend it, or withdraw it. This review brings together 62 single-file technical specifications published as DD CEN/TS in this batch, spanning construction and building-materials testing, plastic piping systems, food-contact materials, wood preservation, environmental monitoring, solid recovered fuels, railway rolling stock, postal services and intelligent transport, providing a complete series panorama and technical interpretation.
💡 DD CEN/TS documents are not formal British Standards, but their technical content has been reviewed by CEN technical committees and carries high reference value; they are often used as supplementary contract and acceptance references before the corresponding EN is issued or while it is under revision.
1. Series Background 📌
Within the European Committee for Standardization (CEN), when a field is not yet mature enough for a full European Standard, a Technical Specification (CEN/TS) may be issued. As a CEN member, the UK adopts these CEN/TS through BSI in its Draft for Development (DD) series, producing DD CEN/TS documents. These documents state explicitly in their foreword that “this publication is not to be regarded as a British Standard” and invite users to feed back practical experience so that CEN can decide on the future conversion path.
All 62 DD CEN/TS in this batch are single-file technical specifications — each number corresponds to one independent document. Across the ICS classification they are widely spread over construction, materials, chemicals, mechanical engineering, environment and information technology, reflecting the common European practice of pre-standardising emerging or evolving technologies before a formal standard is agreed. For engineers and buyers, DD CEN/TS are a valuable window into European technical-specification trends, supporting early design and procurement decisions.
⚠️ When using DD CEN/TS, pay close attention to their provisional nature: the cover and foreword state that they are not to be regarded as British Standards. In contractual references, quote both the CEN/TS number and year of issue, and confirm whether a newer European Standard has superseded the edition you are citing.
2. Standard Inventory (62 items) 📚
The table below lists all 62 single-file DD CEN/TS technical specifications in this batch, ordered by number, with the standard number and subject.
| Standard | Subject |
|---|---|
| DD CEN/TS 54-14:2004 | Fire detection and fire alarm systems – Part 14: Guidelines for planning, design, installation, commissioning, use and maintenance |
| DD CEN/TS 772-22:2006 | Methods of test for masonry units – Part 22: Determination of freeze/thaw resistance |
| DD CEN/TS 1099:2007 | Plywood – Biological durability – Guidance for assessment in different use classes |
| DD CEN/TS 1187:2012 | Test methods for external fire exposure to roofs |
| DD CEN/TS 1591-3:2007 | Flanges and their joints – Design rules for gasketed circular flange connections – Part 3: Metal-to-metal gasketed joints |
| DD CEN/TS 1852-3:2003 | Plastics piping systems for non-pressure underground drainage and sewerage |
| DD CEN/TS 12037:2003 | Wood preservatives – Field test method for relative protective effectiveness |
| DD CEN/TS 12200-2:2003 | Plastics rainwater piping systems for above-ground external use – PVC-U |
| DD CEN/TS 12872:2007 | Wood-based panels – Guidance on use of load-bearing boards in floors, walls and roofs |
| DD CEN/TS 12983-2:2005 | Cookware – Domestic cookware for use on top of a stove, cooker or hob – Part 2 |
| DD CEN/TS 13036-2:2010 | Road and airfield surface characteristics – Part 2: Skid resistance assessment |
| DD CEN/TS 13244-7:2003 | Plastics piping systems for buried and above-ground water pressure systems – Part 7: Conformity assessment guidance |
| DD CEN/TS 13354:2003 | Solid wood panels – Bonding quality – Test method |
| DD CEN/TS 13763-27:2003 | Explosives for civil uses – Detonators and relays – Part 27: Electronic initiation systems |
| DD CEN/TS 13778:2005 | Mobile demolition machinery – Safety requirements |
| DD CEN/TS 13979-2:2011 | Railway applications – Monobloc wheels – Technical approval – Part 2: Cast wheels |
| DD CEN/TS 14038-2:2011 | Electrochemical chloride extraction treatments for reinforced concrete – Part 2 |
| DD CEN/TS 14175-5:2006 | Fume cupboards – Part 5: Installation and maintenance recommendations |
| DD CEN/TS 14234:2002 | Materials in contact with foodstuffs – Polymeric coatings on paper and board |
| DD CEN/TS 14235:2002 | Materials in contact with foodstuffs – Polymeric coatings on metal substrates |
| DD CEN/TS 14243:2010 | Determination of formaldehyde in melamine-formaldehyde moulding materials |
| DD CEN/TS 14494:2003 | Leather – Chemical tests – Pentachlorophenol content |
| DD CEN/TS 14751:2004 | Welding – Use of time-of-flight diffraction (TOFD) for examination of welds |
| DD CEN/TS 14754-1:2007 | Curing compounds – Test methods – Part 1: Water retention efficiency |
| DD CEN/TS 15082:2005 | Wood preservatives – Preventive effectiveness against sapstain and blue-stain fungi |
| DD CEN/TS 15084:2006 | Liming materials – Guide to determination of lime requirement |
| DD CEN/TS 15087:2005 | Uplift resistance of interlocking clay and concrete roofing tiles – Test method |
| DD CEN/TS 15119-1:2008 | Durability of wood – Emissions from preservative-treated wood – Part 1: Laboratory method |
| DD CEN/TS 15209:2008 | Tactile paving surface indicators from concrete, clay and stone |
| DD CEN/TS 15213-6:2011 | Road transport and traffic telematics – After-theft vehicle recovery – Part 6: Test procedures |
| DD CEN/TS 15293:2011 | Automotive fuels – Ethanol (E85) – Requirements and test methods |
| DD CEN/TS 15324:2008 | Bitumen – Equiviscous temperature based on low shear viscosity (DSR) |
| DD CEN/TS 15325:2008 | Bitumen – Zero-Shear Viscosity (ZSV) using a shear rheometer |
| DD CEN/TS 15364:2006 | Characterization of waste – Leaching behaviour – Acid/base neutralization capacity |
| DD CEN/TS 15366:2009 | Adhesives – Mechanical behaviour of bonded joints at different temperatures and humidity |
| DD CEN/TS 15370-1:2006 | Solid biofuels – Ash melting behaviour – Part 1: Characteristic temperatures |
| DD CEN/TS 15397:2006 | Wood preservatives – Natural preconditioning out of ground contact |
| DD CEN/TS 15401:2010 | Solid recovered fuels – Determination of bulk density |
| DD CEN/TS 15405:2010 | Solid recovered fuels – Density of pellets and briquettes |
| DD CEN/TS 15406:2010 | Solid recovered fuels – Bridging properties of bulk material |
| DD CEN/TS 15412:2010 | Solid recovered fuels – Metallic aluminium determination |
| DD CEN/TS 15439:2006 | Biomass gasification – Tar and particles in product gases – Sampling and analysis |
| DD CEN/TS 15523:2011 | Postal services – Statement of mailing submission |
| DD CEN/TS 15531-4:2011 | Public transport – Real-time information – Part 4: Formats for electronic publications (SIRI-PP) |
| DD CEN/TS 15597-2:2012 | Winter maintenance equipment – Spreading machines – Part 2: Distribution requirements |
| DD CEN/TS 15639:2010 | Solid recovered fuels – Mechanical durability of pellets |
| DD CEN/TS 15674:2007 | Air quality – Stationary source emissions – Guidelines for standardised methods |
| DD CEN/TS 15675:2007 | Air quality – Stationary source emissions – Application of EN ISO 16911 |
| DD CEN/TS 15676:2007 | Wood flooring – Slip resistance – Pendulum test |
| DD CEN/TS 15680:2007 | Prefabricated timber stairs – Mechanical test methods |
| DD CEN/TS 15718:2011 | Railway applications – Product requirements for cast wheels |
| DD CEN/TS 15790:2008 | Plastics – Aerobic biodegradation of plastic materials – Reference method |
| DD CEN/TS 15810:2008 | Geotextiles – Water permeability test method |
| DD CEN/TS 15866:2009 | Ceramic tiles – Chemical resistance of unglazed tiles |
| DD CEN/TS 15883:2009 | Thermal insulation products – Tensile strength of bonded insulation |
| DD CEN/TS 15916-1:2011 | Copper and copper alloys – Tellurium content – Part 1: FAAS method |
| DD CEN/TS 15945:2011 | Packaging – Ease of opening – Criteria and test methods |
| DD CEN/TS 16115-1:2011 | Ambient air quality – Bioaerosols – Part 1: Moulds by filter sampling and culture |
| DD CEN/TS 16137:2011 | Plastics – Determination of bio-based carbon content |
| DD CEN/TS 16209:2011 | Furniture – Classification of furniture surface properties |
| DD CEN/TS 16238:2011 | Postal services – Open interface between machine control and mail processing |
| DD CEN/TS 16305:2012 | Liming materials – Determination of dust content |
3. Technical Points of Representative Standards 🔬
1. DD CEN/TS 54-14:2004 — Guidelines for Planning, Design, Installation, Commissioning, Use and Maintenance of Fire Detection and Fire Alarm Systems
This is one of the most widely applied guidance documents in the European fire detection and alarm field. It draws together many documents scattered across Europe to provide a unified technical specification for the planning, design, installation, commissioning, use and maintenance of fire detection and fire alarm systems, helping to harmonise practice gradually across Europe. It does not override existing national documents but runs alongside them, collecting practical experience for future conversion into a full European Standard.
2. DD CEN/TS 1187:2012 — Test Methods for External Fire Exposure to Roofs
This specification defines test methods for evaluating roof performance under external fire exposure (e.g. flying brands and thermal radiation). It is a foundational test for European roof fire classification and product certification. The tests simulate realistic fire scenarios and measure flame spread on the roof, penetration and combustion products, providing the basis for grading roofing materials, often applied together with classification standards such as EN 13501-5.
3. DD CEN/TS 14751:2004 — Time-of-Flight Diffraction (TOFD) for Weld Examination
TOFD is an ultrasonic non-destructive technique that detects and sizes weld defects from diffraction signals. This specification gives methods and requirements for examining welds by TOFD, covering equipment, probe layout, scanning, and defect location and sizing criteria. Compared with conventional pulse-echo techniques, TOFD is more sensitive to volumetric defects such as lack of fusion and cracks, and can size defect height precisely, making it widely used for pressure vessels and steel structures.
4. DD CEN/TS 15401:2010 — Determination of Bulk Density of Solid Recovered Fuels
Solid recovered fuel (SRF) is produced from non-hazardous waste streams; its bulk density directly affects storage, conveying and combustion behaviour. This specification defines a method for determining the bulk density of SRF under standard conditions, specifying sampling, filling method and measuring apparatus to ensure repeatable and comparable results — an important basis for SRF quality control and commercial transactions.
5. DD CEN/TS 15293:2011 — Ethanol (E85) Automotive Fuel Requirements and Test Methods
This specification defines requirements for ethanol (E85) automotive fuel and the corresponding test methods, covering key parameters such as ethanol content, water content and impurity limits. E85 plays an important role in the European alternative-fuel strategy; this specification provides a unified technical basis for quality assessment and market surveillance, and connects with storage and transport safety requirements for petrol/ethanol blends.
✅ The five representative standards above cover fire safety, building fire protection, non-destructive testing, energy and fuels — typical fields that illustrate the “pre-standard, trial-use, harmonisation” role of the DD CEN/TS series. The remaining 57 documents are listed in the full inventory table.
4. Engineering Practice 🛠️
- 🔍 Selection and referencing: when citing a DD CEN/TS in a contract, quote the full number, year and amendment status (e.g. DD CEN/TS 1187:2012) and verify whether a corresponding EN has superseded it.
- 🔧 Building fire protection: the external roof fire test (DD CEN/TS 1187) and structural fire test methods together form key parts of European building fire assessment; designers should consider the grading impact on roof material selection.
- 📊 Non-destructive testing: the TOFD method (DD CEN/TS 14751) suits fast, quantitative detection of volumetric defects in thick welds, pressure vessels and long-distance pipelines, complementing conventional UT and RT.
- 📋 Fuels and materials: the bulk density, pellet density, bridging behaviour, metallic-aluminium content and mechanical durability of solid recovered fuels (DD CEN/TS 15401/15405/15406/15412/15639) together form the SRF quality assessment system, applicable to power plants and co-processing in cement kilns.
5. Frequently Asked Questions ❓
❓ Q: What is the difference between a DD CEN/TS and a formal European Standard (EN)?
A: A DD CEN/TS is a CEN technical specification adopted by BSI as a Draft for Development — a provisional, trial-use document that explicitly is “not to be regarded as a British Standard”. An EN, by contrast, is formally balloted and must be transposed into national standards by members. A DD CEN/TS typically has a three-year trial life, after which it may be converted to an EN, extended, or withdrawn.
A: A DD CEN/TS is a CEN technical specification adopted by BSI as a Draft for Development — a provisional, trial-use document that explicitly is “not to be regarded as a British Standard”. An EN, by contrast, is formally balloted and must be transposed into national standards by members. A DD CEN/TS typically has a three-year trial life, after which it may be converted to an EN, extended, or withdrawn.
❓ Q: Are DD CEN/TS documents mandatory?
A: No. They are voluntary technical documents that fill the gap before a formal standard is issued. They become binding only where legislation or a contract explicitly references them.
A: No. They are voluntary technical documents that fill the gap before a formal standard is issued. They become binding only where legislation or a contract explicitly references them.
❓ Q: Why does BSI issue a “Draft for Development” instead of adopting a European Standard directly?
A: When a CEN technical committee considers a technology not yet mature enough for a full EN, or needs to gather practical experience across Europe, it issues a CEN/TS; BSI adopts it as a DD so UK industry can trial it and feed back, informing the CEN decision.
A: When a CEN technical committee considers a technology not yet mature enough for a full EN, or needs to gather practical experience across Europe, it issues a CEN/TS; BSI adopts it as a DD so UK industry can trial it and feed back, informing the CEN decision.
🔍 Q: When is a DD CEN/TS withdrawn?
A: When a formal EN for the field is issued, or when CEN decides not to continue the technical specification, the original DD CEN/TS is superseded or withdrawn. Always confirm current status via the BSI catalogue before use.
A: When a formal EN for the field is issued, or when CEN decides not to continue the technical specification, the original DD CEN/TS is superseded or withdrawn. Always confirm current status via the BSI catalogue before use.