BS EN 13508-2:2003+A1:2011 National foreword This British Standard is the UK implementation of EN 13508-2:2003+A1:2011, incorporating corrigendum March 2007 It supersedes BS EN 13508-2:2003, which is withdrawn The start and finish of text introduced or altered by corrigendum is indicated in the text by tags ˜™ Text altered by CEN corrigendum March 2007 is indicated in the text by ˆ‰ The start and finish of text introduced or altered by amendment is indicated in the text by tags Tags indicating changes to CEN text carry the number of the CEN amendment For example, text altered by CEN amendment A1 is indicated by !" The UK participation in its preparation was entrusted to Technical Committee B/505, Waste water engineering A list of organizations represented on this committee can be obtained on request to its secretary The UK has had a coding system, the Manual of Sewer Condition Classification (MSCC), for many years Clause 5.4 allows the national equivalent codes to be used in place of the language independent codes described in EN 13508-2 A national equivalent coding system complying with the requirements of EN 13508-2 has been produced and is described in National Annex NB This is very similar to the MSCC coding system Users with archives of data coded according to the MSCC can retain this data Guidance on converting such data into the system described in EN 13508-2 can be found in National Annex NA This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application Compliance with a British Standard cannot confer immunity from legal obligations This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2006 © BSI 2011 ISBN 978 580 63919 Amendments/corrigenda issued since publication Amd No Date Comments 17163 29 June 2007 See national foreword 30 September 2011 Implementation of CEN amendment A1:2011 and revision of National Annexes NA and NB Corrigendum No EUROPEAN STANDARD EN 13508-2:2003+A1 NORME EUROPÉENNE EUROPÄISCHE NORM May 2011 ICS 93.030 Supersedes EN 13508-2:2003 English Version Investigation and assessment of drain and sewer systems outside buildings - Part 2: Visual inspection coding system Investigation et évaluation des réseaux d'assainissement l'extérieur des bâtiments - Partie 2: Système de codage de l'inspection visuelle Untersuchung und Beurteilung Zustand von Entwässerungssystemen außerhalb von Gebäuden - Teil 2: Kodiersystem für die optische Inspektion This European Standard was approved by CEN on November 2002 and includes Corrigendum issued by CEN on 21 March 2007 and Amendment approved by CEN on 17 March 2011 CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member This European Standard exists in three official versions (English, French, German) A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 13508-2:2003+A1:2011: E BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Contents Page Foreword Introduction Scope Normative references Terms and definitions Sources of additional information 12 5.1 5.2 5.3 5.4 5.5 5.6 General 12 Purpose 12 Methods 12 The use of the coding system 13 National equivalent coding systems 13 Data transfer 13 Information to be supplied by the employing authority 13 Drains and sewers - Coding system 14 7.1 7.2 Drains and sewers - Header information 14 Requirements 14 Other header information 15 8.1 8.1.1 8.1.2 8.1.3 8.1.4 8.1.5 8.1.6 8.1.7 8.1.8 8.1.9 8.1.10 8.2 8.3 8.4 8.5 Drains and sewers - Codes 16 Introduction 16 General 16 Main code 20 Characterisation 20 Quantification 20 Circumferential location 20 Observation at joint 21 Longitudinal location 21 Photograph reference 22 Video location reference 22 Remarks 22 Codes relating to the fabric of the pipeline 23 Codes relating to the operation of the pipeline 29 Inventory codes 33 Other codes 37 Manholes and inspection chambers - Coding system 40 10 10.1 10.2 Manholes and inspection chambers - Header information 40 Requirements 40 Other header information 40 11 11.1 11.1.1 11.1.2 11.1.3 11.1.4 11.1.5 11.1.6 11.1.7 11.1.8 Manholes and inspection chambers - Codes 41 Introduction 41 General 41 Main code 46 Characterisation 46 Quantification 46 Circumferential location 46 Observation at joint 47 Descriptive location 47 Vertical location 48 BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) 11.1.9 Photograph reference 49 11.1.10 Video location reference 49 11.1.11 Remarks 49 11.2 Codes relating to the fabric of the manhole or inspection chamber 49 11.3 Codes relating to the operation of the manhole or inspection chamber 57 11.4 Inventory codes 59 11.5 Other codes 65 12 Documentation 67 Annex A (normative) National equivalent coding systems 68 A.1 Header information 68 A.2 Codes 68 Annex B (informative) Format for electronic transfer of coded data 69 B.1 Introduction 69 !B.2 Character Separated format" 69 B.2.1 General 69 B.2.2 File header information 69 B.2.3 Inspection header information 71 B.2.4 Inspection data 72 B.2.5 Examples 73 B.3 Extensible Mark-up Language Format 74 B.3.1 General 74 B.3.2 File header information 75 B.3.3 Inspection header information 75 B.3.4 Inspection data 75 B.3.5 Example 75 Annex C (informative) Recommended system for coding of header information for drains and sewers 79 C.1 Introduction 79 C.2 Location of the inspection 79 C.3 Inspection details 82 C.4 Pipeline details 86 C.5 Other information 89 C.6 Changes to header information 89 C.7 Other information required by the employing authority 91 Annex D (informative) Recommended system for coding of header information for manholes and inspection chambers 92 D.1 Introduction 92 D.2 Location of the inspection 92 D.3 Inspection details 94 D.4 Manhole or inspection chamber details 98 D.5 Other information 100 D.6 Changes to header information 101 D.7 Other information required by the employing authority 102 Annex E (informative) Sample coding sheet 103 Annex F (informative) Photographs illustrating the coding system for drains and sewers 105 Annex G (informative) Photographs illustrating the coding system for manholes and inspection chambers 134 Annex H (informative) Sources of additional information 145 H.1 International Standards 145 H.2 Austria 145 H.2.1 Austrian Water and Waste Management Association – Rules of Practice (ÖWAV Österreichischer Wasser- und Abfallwirtschaftsverband - Regelblätter) 145 H.2.2 Other guidelines 145 H.3 Denmark 146 H.4 Finland 146 H.5 France 147 H.6 Germany 147 H.7 Italy 148 H.8 Netherlands 148 BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) H.9 H.10 H.11 H.12 Norway 148 Sweden 148 Switzerland 148 United Kingdom 149 National Annex NA (informative) Conversion of existing Manual of Sewer Condition Classification data into EN 13508-2 format 151 National Annex NB (informative) National Equivalent Coding System 168 BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Foreword This document (EN 13508-2:2003+A1:2011) has been prepared by Technical Committee CEN/TC 165 ―Wastewater engineering‖, the secretariat of which is held by DIN This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2011, and conflicting national standards shall be withdrawn at the latest by November 2011 This document includes Corrigendum issued by CEN on 21 March 2007 and Amendment approved by CEN on 17 March 2011 This document supersedes EN 13508-2:2003 The start and finish of text introduced or altered by amendment is indicated in the text by tags !" The modifications of the related CEN Corrigendum have been implemented at the appropriate places in the text and are indicated by the tags ˜ ™ The Standard series EN 13508 " Condition of drain and sewer systems outside buildings " contains the following parts Part 1: General requirements Part 2: Visual inspection coding system Other parts, dealing with other methods of inspection, can be added later In drafting this part of this European Standard account has been taken of other available standards, in particular EN 752 ―Drain and sewer systems outside buildings‖ To allow for the alteration of existing data and coding system software in accordance with this standard and training of inspection personnel, a transition period is granted until (DAV + 36 month) for the withdrawal of conflicting national standards and the application of this standard Where there are existing inspection programmes to meet legal requirements commenced before the publication of this standard, it is permitted to complete such programmes using the original coding system According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Introduction In producing this draft standard, existing national coding systems have been reviewed To preserve the link with existing data, TC165/WG22 has tried to ensure that there is an equivalent code, or combination of codes, for every observation recorded in an existing national system !This will allow existing data to be transferred to the new coding system." At present the amount of detail recorded varies between countries The choice of features to be recorded and the extent of detail to be included is left to the employing authority Before the standard can be fully applied, extensive retraining of operators and modification of software will be necessary Scope !This European Standard is applicable to the investigation and assessment of drain and sewer systems outside buildings." !It is applicable to drain and sewer systems, which operate essentially under gravity, from the point where the wastewater leaves a building or roof drainage system, or enters a road gully, to the point where it is discharged into a treatment works or receiving water." Drains and sewers below buildings are included provided that they not form part of the drainage system of the building This part of the European Standard specifies a coding system for the description of the internal condition of drains, sewers, manholes and inspection chambers identified through visual inspection Where appropriate, it can also be used for pressure and vacuum systems in accordance with the requirements of the employing authority !Visual inspection of drain and sewer systems can be carried out as part of the investigation in order to undertake the assessment." This part of the European Standard does not generally specify requirements for carrying out inspections Normative references !The following referenced documents are indispensable for the application of this document For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies." EN 476:1997, General requirements for components used in discharge pipes, drains and sewers for gravity systems !EN 752:2008, Drain and sewer systems outside buildings" !EN 1085:2007, Wastewater treatment — Vocabulary" ISO 8601, Data elements and interchange formats — Information interchange — Representation of dates and times BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Terms and definitions For the purposes of this European Standard, the following terms and definitions apply: NOTE These definitions are general terms Other specific terms are defined in the text 3.1 adjusting construction !part of a manhole or inspection chamber between the cover and frame and either the shaft or the cover slab This is used to adjust the level of the cover and frame to accord with the required surface level" 3.2 backdrop manhole manhole with a connection, by means of a vertical pipe, at or just above invert, from a drain or sewer at a higher level ![EN 752:2008, Term 3.5]" 3.3 benching near horizontal surface adjacent to the channel in a manhole or inspection chamber, or a large sewer 3.4 chamber part of a manhole or inspection chamber providing working space above the channel 3.5 chamber unit component part of a manhole or inspection chamber manufactured as a single entity and intended to be joined with other chamber units 3.6 combined system !drain and sewer system designed to carry both foul wastewater and surface water in the same pipeline(s)" ![EN 752:2008, Term 3.12, EN 1085:2007, Term 2110]" 3.7 connection general term used for the location at which one pipeline joins another pipeline or a manhole or inspection chamber 3.8 drain pipeline, usually underground, designed to carry wastewater and/or surface water from a source to a sewer ![EN 752:2008, Term 3.19, EN 1085:2007, Term 2250]" 3.9 drain system network of pipelines and ancillary works that conveys wastewater and/or surface water to a cesspool, sewer system or other place of disposal !deleted text" 3.10 employing authority organisation which owns or is responsible for the !management" of a drain or sewer system 3.11 exfiltration !escape of wastewater from a drain or sewer system into surrounding ground" ![EN 752:2008, Term 3.24, EN 1085:2007, Term 2230]" BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) 3.12 gradient ratio between the vertical and the horizontal projections of a pipe length !deleted text" 3.13 gravity system !drain or sewer system where flow is caused by the force of gravity and where the pipeline is designed usually to operate partially full" ![EN 752:2008, Term 3.30, EN 1085:2007, Term 2260]" 3.14 groundwater water present in the sub-surface strata !deleted text" 3.15 infiltration ! unwanted flow resulting from an ingress of groundwater into a drain or sewer system" ![EN 752:2008, Term 3.33, EN 1085:2007, Term 2220]" 3.16 inspection chamber !chamber with a removable cover constructed on a drain or sewer that permits the introduction of cleaning and inspection equipment from surface level, but does not provide access for personnel" ![EN 752:2008, Term 3.34]" 3.17 invert lowest point of the internal surface of the barrel of a pipe or channel at any cross section [EN 476:1997] 3.18 joint location at which the ends of two adjacent pipe units are joined together longitudinally 3.19 junction connection made using a prefabricated junction pipe unit 3.20 landing intermediate rest platform used to limit the height of a run of steps in a manhole 3.21 manhole chamber with a removable cover constructed on a drain or sewer to permit entry by personnel ![EN 752:2008, Term 3.41]" 3.22 node manhole, inspection chamber, outfall, rodding eye or other significant intermediate point 3.23 outfall !structure or point from which wastewater is discharged to a wastewater treatment plant or receiving water" ![EN 752:2008, Term 3.42, EN 1085:2007, Term 1280]" 3.24 pipe unit component part of a drain or sewer manufactured as a single entity and intended to be joined with other pipe units BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A C C D D A I I G G y y y D B I G y y y D C I G y y y A A EX V V V R R A A A B B V V V V V R R R C C C J Z B B B Z Z V V V V V C C C Z Z C J Z V V V Z Z Z C J Z CN CN CN C C C CN CN CN CN C C C F D DBG DBH Z Z Z INVENTORY CODES DCA A A A A B 210 UK NATIONAL EQUIVALENT CODES UK code Characterisation Clock J At To I R y y y A A A B C D Z B A P P P C A R U Z Description Dimension Size Band - space between connecting pipe and manhole above benching - Gushing - through wall of manhole/inspection chamber - space between connecting pipe and manhole at invert - space between connecting pipe and manhole above benching Exfiltration Vermin - Rat - in manhole/inspection chamber - in connection - in open joint - other - Cockroach - in manhole/inspection chamber - in connection - in open joint - other Other - in manhole/inspection chamber - in connection - in open joint - other Connection type - connection in benching - channel in benching - connection discharge across benching - ramp channel - pipe under benching -other - free drop into channel - channel in benching Remarks Notes Unit Nr y y } } y }See note } } y y y y y y y y BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A B B B B B C C D Z C C A B C C C D C D Z D D A B D D D E C D Z E E A B E E E F C D Z F F A B F F F Z Z Z C D Z Z Z C D UK NATIONAL EQUIVALENT CODES UK code Characterisation Clock J At To CN CN CN CN A B B D I D R P V P Description Dimension Size Band - connection discharge across benching - ramp channel - pipe under benching -other - backdrop y - channel in benching - connection discharge across benching - ramp channel - pipe under benching -other - internal drop pipe y - channel in benching - connection discharge across benching - ramp channel - pipe under benching -other - ramp connection y - channel in benching - connection discharge across benching - ramp channel - pipe under benching -other - ventilation pipe y Remarks Notes Unit - channel in benching - connection discharge across benching - ramp channel - pipe under benching -other - other - channel in benching - connection discharge across benching - ramp channel - pipe under benching 211 BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A Z Z DCB A B UK NATIONAL EQUIVALENT CODES UK code Characterisation Clock J At To RP RP R L C D E F Z RP RP RP RP RP I H T C Z A A A PJ PJ C C I A B PJ C O A B B C C R R C A PJ PJ PJ I B B PJ R O B C C C R E E C A PJ PJ PJ I C B PJ E O C D D C E U U C A PJ PJ PJ D B PJ U O D E E C U A A C A PJ PJ PJ I E B PJ A O E F C A O C PJ DCG 212 I Description -other Point repair - part of wall replaced - localized lining of manhole/chamber - injection of sealing material - hole repaired - localized lining of connection - other repair of connection - other trenchless method Pipeline joining - Circular - connection discharges into MH/IC - connection discharges from MH/IC - connection closed - Rectangular - connection discharges into MH/IC - connection discharges from MH/IC - connection closed - Egg shaped - connection discharges into MH/IC - connection discharges from MH/IC - connection closed - U shaped - connection discharges into MH/IC - connection discharges from MH/IC - connection closed - Arch shaped - connection discharges into MH/IC - connection discharges from MH/IC - connection closed - Oval Dimension Size Band y y y y y y y y y y y y y y y Remarks Unit mm y y y y y y Notes BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A F A UK NATIONAL EQUIVALENT CODES UK code Characterisation Clock J At To PJ O I Description - connection discharges into MH/IC - connection discharges from MH/IC - connection closed - Barrel F B PJ O O F X A X A X A X A X B X B X B X B X C X C X C X C X D X D X D X D C PJ PJ O B C A PJ B I B PJ B O C PJ B C - connection discharges into MH/IC - connection discharges from MH/IC - connection closed PJ H - Horseshoe I - connection discharges into MH/IC - connection discharges from MH/IC - connection closed A PJ P J H B PJ H O C PJ H C PJ T A PJ T I B PJ T O C PJ T C PJ K A PJ K I B PJ K O C PJ K C - Trapezoidal A PJ I B PJ O Remarks Notes Unit y y y - connection discharges into MH/IC - connection discharges from MH/IC - connection closed - Kerb block PJ Dimension Size Band y - connection discharges into MH/IC - connection discharges from MH/IC - connection closed - Local section defined by local authority - connection discharges into MH/IC - connection discharges from MH/IC y 213 BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A C Z Z A UK NATIONAL EQUIVALENT CODES UK code Characterisation Clock J At To PJ C PJ Z PJ Z I Z B PJ Z O Z C PY BE BE BE BE CH CH Z C DCH A B C DCI A A A A A B B B B B C X N A B C D CH A B C D A CH SFC SFC B C D SFC SFC SFC E SFB F G H SFB SFB SG M X D CO CO CO CO W W W S Y DCJ M X D DCK A A A B 214 A B y C O y Description - connection closed - Other - connection discharges into MH/IC - connection discharges from MH/IC - connection closed Benching - benching defective - benching not defective - no benching Channel - channel defective - channel narrows - channel widens - channel has high point - channel has low point - channel not defective - channel narrows - channel widens - channel has high point - channel has low point - no channel Safety chains/bars - safety chain present with no defects - safety chain missing - safety chain defective - safety chain in position coated with debris - safety bar present with no defects - safety bar missing - safety bar defective - safety bar in position coated with debris Flow control - Weir - continuation flow - overflow - Syphon Dimension Size Band Remarks Unit y mm Notes BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A B A B C C C D D D E E E F B A B A B A B F A F B G G A G B H H A H B I I A I B Z Z Z A B DCL A UK NATIONAL EQUIVALENT CODES UK code Characterisation Clock J At To CO S C Y CO S O Y CO O y CO O C CO O O CO V y CO V C CO V O CO G y CO G C CO G O CO F y G CO F C G CO F O G CO M y F CO M C F CO M O F CO F y V CO F C V CO F O V CO S y C CO S C C CO S O C CO Z y CO Z C CO Z O SP SP N Description Dimension Size Band Remarks Notes Unit - continuation flow - overflow - Orifice plate - continuation flow - overflow - Vortex flow control - continuation flow - overflow - Gate valve - continuation flow - overflow - Float operated gate valve - continuation flow - overflow - Measuring flume - continuation flow - overflow - Flap valve - continuation flow - overflow - Screens - continuation flow - overflow - Other - continuation flow - overflow Other wastewater pipeline through manhole - No access to the pipe 215 BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A A A A B B B B C A B SP SP SP C C M X C C A B SP SP M M G T G T G T G T C P C P C P S C S C S C S C S C X DCM A B C DCN A B DCO A B X Z OTHER CODES DDA DDB DDC 216 UK NATIONAL EQUIVALENT CODES UK code Characterisation Clock J At To SP N X SP N SP C A G P R E M Description Dimension Size Band Remarks Unit - defective - not defective - Access is provided – cover in place - defective - not defective - Access is provided – cover missing - defective - not defective Grit trap under cover P - trap present with no defects M - trap missing X - trap defefective Silt pit in invert - pit not defective X - pit defective Cross section C - circular R - rectangular Z - local section – code prefixed with X - other General photograph General remark Inspection terminated before completion mm Notes BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A A A A A B A B Z B A B B B C Z C A C B C D Z D A D B D Z Z Z A Z B Z Z DDD DDE A UK NATIONAL EQUIVALENT CODES UK code Characterisation Clock J At To S UTL A S A S A S A S A W L F W F W Description Dimension Size Band Remarks Notes Unit - unable to lift cover OB - objective achieved before completion - instruction from employing authority - other - obstruction WL - objective achieved before completion - instruction from employing authority - other - high water level EQ - objective achieved before completion - instruction from employing authority - other - equipment failure Z - objective achieved before completion - instruction from employing authority - other - other - objective achieved before completion - instruction from employing authority - other Water level Flow from incoming pipe C - Clear See note 10 y % See note 10 217 BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A A A A B F W C S A C F W F W F W F W C N T F B C Remarks Notes Unit % See note 10 y % See note 10 y % See note 10 y % See note 10 T - Turbid y % See note 10 y % See note 10 y % See note 10 y % See note 10 y % See note 10 y % See note 10 y % See note 10 y % See note 10 y % See note 10 y % See note 10 y % See note 10 y % See note 10 y % See note 10 C B F W T S C C F W F W F W T N CD F CD - wrong incoming wastewater flow to surface water pipe - wrong incoming surface water flow to wastewater pipe - not observed wrong - Coloured D A D B F W CD S D C F W F W F W CD N TC F TC - wrong incoming wastewater flow to surface water pipe - wrong incoming surface water flow to wastewater pipe - not observed wrong - Turbid and coloured E A E B F W TC S E C F W TC N F W YY Y Y - wrong incoming wastewater flow to surface water pipe - wrong incoming surface water flow to wastewater pipe - not observed wrong Dimension Size Band y - Use of code discontinued A E Description T C D 218 UK NATIONAL EQUIVALENT CODES UK code Characterisation Clock J At To F C F W - wrong incoming wastewater flow to surface water pipe - wrong incoming surface water flow to wastewater pipe - not observed wrong - Not visible BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A DDF A B C Z DDG A B C Z CEA CEB CED CEF CRG UK NATIONAL EQUIVALENT CODES Characterisation Clock UK code J At To OD HS ME GZ CU CU CU CU CU VVR PVR MC W D S Z C o d e A A A PC PRC PRC PRC PRC ST ST ST A B ST S A C ST S A D ST S A E ST S A F ST S A B B Z A ST ST ST S D D B B ST D A B C CEH D R S S I R G V S S P M P L A L Z I R G V Description Atmosphere - oxygen deficiency - hydrogen sulphide - methane - other Loss of vision - under water - silt - steam - other Video volume reference Photograph volume reference Material Chamber unit length Precipitation - no precipitation - rain - melting snow/ice Steps - Single width steps - iron Dimension Size Band Remarks Notes Unit % or ppm % or ppm % or ppm % or ppm No No mm - galvanized iron - stainless steel - plastic encapsulated metal - plastic - aluminium - other - Double width steps - iron - galvanized iron 219 BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) Table NB.16 — National equivalent codes (continued) EN 13508-2 EuroCharacterisation code A B C B D B E B F B C C Z C B C C C D C E C F C D E Z Z A UK NATIONAL EQUIVALENT CODES Characterisation Clock UK code J At To ST D S S ST D P M ST D P L ST D A L ST D Z ST L ST L I R ST L G V ST L S S ST L P M ST L P L ST L A L ST L Z ST T ST N ST Z Description Dimension Size Band Remarks Unit - stainless steel - plastic encapsulated metal - plastic - aluminium - other - Ladder - iron - galvanized iron - stainless steel - plastic encapsulated metal - plastic - aluminium - other - toe holes - no provision - other NOTES As note Table NB.11 These codes should be used for prefabricated rings only The code CXI is a combination of the EN codes DCA and DAG (and sometimes DAH, see note 4) Where an intruding lateral is otherwise defective the use of the EN code DAH may be incorporated by the use of the additional characterisation (see CX) The code CX is a combination of the EN codes DCA and DAH The code RX is a combination of the code DCB (RP) and the code DAL The appropriate characterisation code for RP should be inserted in characterisation If the object is recognisable please record in remarks Please record type of animal This combination is not possible 10 EN 13508-2 requires that code DDE (equivalent code "FW") is used in combination with code "DCA" (equivalent codes "CN" or "CX") 220 Notes BS EN 13508-2:2003+A1:2011 EN 13508-2:2003+A1:2011 (E) UK national Code CF AC S T RS CH L B CHL I Table NB.17 — Codes for location observation Location of observation Cover and frame Adjusting construction Shaft Taper Reducing slab Chamber Landing Benching Channel Invert EN Code A B C D E F G H I J 221 BS EN 13508-2:2003 +A1:2011 BSI - British Standards Institution BSI is the independent national body responsible for preparing British Standards It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments or editions It is the constant aim of BSI to improve the quality of our products and services We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front 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extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photocopying, recording or otherwise – without prior written permission from BSI This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained Details and advice can be obtained from the Copyright and Licensing Manager Tel: +44 (0)20 8996 7070 Email: copyright@bsigroup.com This page deliberately left blank British Standards Institution (BSI) BSI is the independent national body responsible for preparing British Standards and other standards-related publications, information and services It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions Information on standards British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments or editions It is the constant aim of BSI to improve the quality of our products and services We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001 BSI provides a wide range of information on national, European and international standards through its Knowledge Centre BSI offers Members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards Tel: +44 (0)20 8996 7669 Fax: +44 (0)20 8996 7001 Email: plus@bsigroup.com Buying standards You may buy PDF and hard copy versions of standards directly using a credit card from the BSI Shop on the website www.bsigroup.com/shop In addition all orders for BSI, international and foreign standards publications can be addressed to BSI Customer Services Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001 Email: orders@bsigroup.com In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested Tel: +44 (0)20 8996 7004 Fax: +44 (0)20 8996 7005 Email: knowledgecentre@bsigroup.com Various BSI electronic information services are also available which give details on all its products and services Tel: +44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048 Email: info@bsigroup.com BSI Subscribing Members are kept up to date with standards developments and receive substantial discounts on the purchase price of standards For details of these and other benefits contact Membership Administration Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: membership@bsigroup.com Information regarding online access to British Standards via British Standards Online can be found at www.bsigroup.com/BSOL Further information about BSI is available on the BSI website at www.bsigroup.com/standards Copyright Copyright subsists in all BSI publications BSI also holds the copyright, in the UK, of the publications of the international standardization bodies Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photocopying, recording or otherwise – without prior written permission from BSI This does not preclude the free use, in the course of implementing the standard of necessary details such as symbols, and size, type or grade designations If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained Details and advice can be obtained from the Copyright & Licensing Manager Tel: +44 (0)20 8996 7070 Email: copyright@bsigroup.com BSI Group Headquarters 389 Chiswick High Road London W4 4AL UK Tel +44 (0)20 8996 9001 Fax +44 (0)20 8996 7001 www.bsigroup.com/standards raising standards worldwide™