EN 12252:2005+A1:2008

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.813Flüssiggas-Geräte und Ausrüstungsteile - Ausrüstung von Straßentankwagen für Flüssiggas (LPG)Equipements pour GPL et leurs accessoires - Equipements des camions citernes pour GPLLPG equipment and accessories - Equipping of LPG road tankers43.080.10Tovornjaki in priklopnikiTrucks and trailersICS:Ta slovenski standard je istoveten z:EN 12252:2005+A1:2008SIST EN 12252:2006+A1:2008en,fr,de01-maj-2008SIST EN 12252:2006+A1:2008SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12252:2005+A1
March 2008 ICS 43.080.10 Supersedes EN 12252:2005 English Version
LPG equipment and accessories - Equipping of LPG road tankers
Equipements pour GP et leurs accessoires - Equipements des camions citernes pour GPL
Flüssiggas-Geräte und Ausrüstungsteile - Ausrüstung von Straßentankwagen für Flüssiggas (LPG) This European Standard was approved by CEN on 26 October 2005 and includes Amendment 1 approved by CEN on 14 January 2008.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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: rue de Stassart, 36
B-1050 Brussels © 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12252:2005+A1:2008: ESIST EN 12252:2006+A1:2008

Discharge rates for pressure relief valves.18 A.1 Discharge capacity.18 Annex B (informative)
Calculation of mountings of tank to the chassis.20 B.1 General.20 B.2 Mounting of tank to the chassis.21 B.2.1 Fixing rods.21 B.2.2 Bolts.22 B.2.3 Bracket welds.22 B.2.4 Allowable stress.22 B.2.5 Typical mounting (example).23 B.3 Calculation of fixing rods.23 B.3.1 In the direction of travel.23 B.3.2 At right angles to the direction of travel.24 B.3.3 Vertically upwards.24 B.4 Calculation of the bracket welds.24 B.4.1 General.24 B.4.2 In the direction of travel.25 B.4.3 At right angles to the direction of travel.25 B.4.4 Vertically upwards.25 B.5 Calculation of fixing bolts.25 B.5.1 In the direction of travel.26 B.5.2 At right angles to the direction of travel.26 B.5.3 Vertically upwards.26 Bibliography.27
Therefore the standards listed in the normative references and covering basic requirements of the ADR not addressed within the present European Standard are normative only when the standards themselves are referred to in the technical annexes of the ADR. !deleted text" 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, 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.
It also specifies the requirements for the assembly of the accessories and the vehicle LPG equipment to the road tanker. This European Standard also identifies additional equipment and accessories that may be used on road tankers carrying LPG. NOTE This European Standard does not preclude the use of alternative designs, materials and equipment testing which provide a similar level of safety. This European Standard does not apply to "tank-containers" and "battery-vehicles" used for the transportation of LPG. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 287-1, Qualification test of welders — Fusion welding — Part 1: Steels EN 549, Rubber materials for seals and diaphragms for gas appliances and gas equipment EN 558-1, Industrial valves — Face-to-face and centre-to-face dimensions of metal valves for use in flanged pipe systems — Part 1: PN-designated valves !deleted text" EN 837-2, Pressure gauges — Part 2: Selection and installation recommendations for pressure gauges EN 1012-1, Compressors and vacuum pumps — Safety requirements — Part 1: Compressors EN 1418, Welding personnel — Approval testing of welding operators for fusion welding and resistance weld setters for fully mechanized and automatic welding of metallic materials EN 1591-1, Flanges and their joints — Design rules for gasketed circular flange connections — Part 1: Calculation method EN 1762, Rubber hoses and hose assemblies for liquefied petroleum gas, LPG (liquid or gaseous phase) and natural gas up to 25 bar (2,5 MPa) — Specification !EN 1983", Industrial valves — Steel ball valves EN 1984, Industrial valves — Steel gate valves EN 10025 (all parts), Hot rolled products of structural steels EN 10028 (all parts), Flat products made of steels for pressure purposes EN 10045-1, Metallic materials — Charpy impact test — Part 1: Test method EN 10204:2004, Metallic products — Types of inspection documents SIST EN 12252:2006+A1:2008

(ISO 15614-1:2004) 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 LPG (liquefied petroleum gas) mixture of predominantly butane or propane with traces of other hydrocarbon gases classified in accordance with UN number 1965, hydrocarbon gases mixture, liquefied, NOS or UN number 1075, petroleum gases, liquefied NOTE In some countries, UN numbers 1011 and 1978 may also be designated LPG. SIST EN 12252:2006+A1:2008

In particular they shall be:  manufactured of materials which give the finished equipment the required mechanical properties; in particular, where equipment is subject to the low temperatures (including low temperatures caused by filling), suitably ductile material shall be used;  protected against accidental damage where such damage could lead to a dangerous escape of LPG. 4.2 Equipment This European Standard covers mandatory and optional equipment to be fitted to LPG road-tankers in accordance with Table 1. SIST EN 12252:2006+A1:2008

Optional Tank accessories Contents gauge 6.1.1 / 8.2 X
Pressure gauge 6.1.2 / 8.3 X
Primary shut-off system 6.1.3 X
Temperature gauge 6.2 / 8.4
X Pressure relief valve (PRV) 6.2 / 8.11
X Sun shield 6.2
X Road tanker LPG equipment Pipework 7.1.2 / 8.1.6 X
Emergency shut-down system 10.2 X
Hoses 7.1.3 / 8.6 X
Thermal expansion valves/hydrostatic relief valves 7.1.4 X
Valves 7.1.5 /8.10
X
Compressor 7.2
X Pump 7.2/ 8.5
X Hose reel 7.2/ 8.7
X Metering system 7.2/ 8.9
X Earth reel 7.2/ 8.8
X
4.3 Valve access Valves required for normal and emergency operation shall be readily accessible or remotely operated. 5 Tank 5.1 Design, and manufacture The tank shall be designed and manufactured in accordance with EN 12493. 5.2 Mounting of tank on road tanker 5.2.1 General The tank and fastenings to the structure of the road tanker shall be designed and constructed to absorb safely the stresses from normal use such as surge, vibration, braking action etc. 5.2.2 Mounting 5.2.2.1 The fixing of the tank to the road tanker shall be designed in accordance with a calculation based on the forces given in Table 2. SIST EN 12252:2006+A1:2008
...