EN 13799:2002

SLOVENSKI STANDARD
01-december-2003
.D]DOQLNLQLYRMDYUH]HUYRDUMLK]DXWHNRþLQMHQLQDIWQLSOLQ813
Contents gauges for LPG tanks
Füllstandsanzeiger für Flüssiggasbehälter
Jauges de niveau pour réservoirs de GPL
Ta slovenski standard je istoveten z: EN 13799:2002
ICS:
23.020.10 1HSUHPLþQHSRVRGHLQ Stationary containers and
UH]HUYRDUML tanks
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 13799
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2002
ICS 00.230; 23.020.30
English version
Contents gauges for LPG tanks
Jauges de niveau pour les réservoirs de GPL Füllstandsanzeiger für Flüssiggasbehälter
This European Standard was approved by CEN on 9 September 2002.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, 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
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 13799:2002 E
worldwide for CEN national Members.

Contents
page
Foreword.4
1 Scope .5
2 Normative references .5
3 Terms and definitions.6
4 Operating conditions.7
5 Materials.7
5.1 General.7
5.2 Metallic materials .7
5.3 Non-metallic components.8
5.4 Lubricants, sealants and adhesives .8
6 Design – General requirements.8
6.1 General.8
6.2 Seals.9
6.3 Springs.9
6.4 Threads .9
6.5 Flanges.9
7 Design– Specific requirements .9
7.1 Contents gauge.9
7.1.1 Float gauge.9
7.1.2 Rotary gauge .10
7.1.3 Fixed level gauge .10
7.1.4 Slip tube gauge .10
7.1.5 Other contents gauges.10
7.2 Dials for contents gauges.11
7.3 Overfill protection device.11
8 Design testing .11
8.1 General.11
8.2 Over-torquing deformation test.12
8.3 External tightness test .13
8.4 Internal tightness test.14
8.5 Endurance test .14
8.6 Hydrostatic strength test .14
8.7 Stress cracking test.15
8.7.1 General.15
8.7.2 Mercurous nitrate immersion test.15
8.7.3 Moist ammonia air stress cracking test .15
8.8 Float pressure test.15
8.9 Dimensional inspection.15
8.10 Function test.15
8.11 Accuracy assessment .15
9 Production testing and inspection.16
10 Marking .16
11 Documentation.16
Annex A (normative)  Float gauge flange and gasket dimensions .17
Annex B (normative)  Special low temperature requirements for gauges .20
Annex C (normative)  Taper thread dimensions .21
Annex ZA (informative)  Clauses of this European Standard addressing essential requirements or
other provisions of EU Directives.25
Foreword
This document EN 13799:2002 has been prepared by Technical Committee CEN/TC 286 "LPG equipment and
accessories", the secretariat of which is held by NSAI.
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 April 2003, and conflicting national standards shall be withdrawn at the latest by
April 2003.
This document has been prepared under a mandate given to CEN by the European Commission and the European
Free Trade Association, and supports essential requirements of EU Directive(s).
For relationship with EU Directive(s), see informative annex ZA, which is an integral part of this document.
In this European Standard the annexes A, B and C are normative.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,
Sweden, Switzerland and the United Kingdom.
1 Scope
This European Standard specifies minimum requirements for design and testing of contents gauges, which are
directly connected to transportable or static LPG tanks above 0,5 l water capacity excluding those used for
automotive containers.
Overfill protection devices that incorporate contents gauges are also included.
2 Normative references
This European Standard incorporates by dated or undated reference, provisions from other publications. These
normative references are cited at the appropriate places in the text, and the publications are listed hereafter. For
dated references, subsequent amendments to or revisions of any of these publications apply to this European
Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the
publication referred to applies (including amendments).
EN 549, Rubber materials for seals and diaphragms for gas appliances and gas equipment.
EN 1092-1, Flanges and their joints – Circular flanges for pipes, valves, fittings and accessories, PN designated -
Part 1: – Steel flanges.
EN 1503-1, Valves – Materials for bodies, bonnets and covers – Part 1: Steels specified in European Standards.
EN 1503-2, Valves – Materials for bodies, bonnets and covers – Part 2: Steels other than those specified in
European Standards.
EN 1503-3, Valves – Materials for bodies, bonnets and covers – Part 3: Cast Irons specified in European
Standards.
prEN 1503-4 Valves – Materials for bodies, bonnets and covers – Part 4: Copper alloys specified in European
Standards.
EN 1563, Founding – Spheroidal graphite cast irons.
EN 10270-3, Steel wire for mechanical springs – Part 3: Stainless spring steel wire.
EN 12164, Copper and copper alloys – Rod for free machining purposes.
EN 12420, Copper and copper alloys – Forgings.
EN 13906 (all Parts), Cylindrical helical springs made from round wire and bar – Calculation and design.
EN 50014, Electrical apparatus for potentially explosive atmospheres – General requirements.
EN 50015, Electrical apparatus for potentially explosive atmospheres – Oil immersion “o”.
EN 50016, Electrical apparatus for potentially explosive atmospheres – Pressurised apparatus “p”.
EN 50017, Electrical apparatus for potentially explosive atmospheres – Powder filling “q”.
EN 50018, Electrical apparatus for potentially explosive atmospheres – Flameproof enclosure “d”.
EN 50019, Electrical apparatus for potentially explosive atmospheres – Increased safety “e”.
EN 50020, Electrical apparatus for potentially explosive atmospheres – Intrinsic safety “i”.
EN 50028, Electrical apparatus for potentially explosive atmospheres – Encapsulation “m”.
ISO 7-1, Pipe threads where pressure-tight joints are made on the threads – Part1: Dimensions and tolerances and
designation.
ISO 301, Zinc alloy ingots intended for casting.
ISO 6957, Copper alloys – Ammonia test for stress corrosion resistance.
3 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1
LPG
mixture of light hydrocarbons, gaseous under standard atmospheric conditions, which can be liquefied by increased
pressure or decreased temperature. The main components are propane, propene, butane and butene isomers
3.2
contents gauge
device to indicate the liquid level or contents in a tank
NOTE This can be incorporated into an overfill protection device.
3.2.1
float gauge
device to indicate the content of a tank by means of a float on the liquid surface within the tank
3.2.2
rotary gauge
device which operates through a rotating action in order to assess the liquid level in a tank by means of temporarily
venti
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