SIST EN 1361:2004
(Main)Rubber hoses and hose assemblies for aviation fuel handling - Specification
Rubber hoses and hose assemblies for aviation fuel handling - Specification
This European Standard specifies the dimensions, construction and requirements for four types of hoses and hose assemblies for use in all operations associated with the ground fuelling and de fuelling of aircraft.
All four types of hose are designed for:
a) use with petroleum fuels, having an aromatic hydrocarbon content not exceeding 30 % by volume;
b) operation within the temperature range of -30 °C to +65 °C and are to be undamaged by climatic conditions of -40 °C to +70 °C when stored in static conditions;
c) operating up to 20 bar maximum working pressure, including surges of pressure which the hose can be subjected to in service.
NOTE 1 Type C hoses are intended for general pressure application on all vehicles used for into - plane fuelling. It can also be used for vehicle/rail car loading and discharge where excessive vacuum does not occur.
NOTE 2 Type F hoses can be used for into-plane delivery applications on vehicles that are also used for de-fuelling at high flow rates, where Type C hoses are not suitable.
NOTE 3 Types E & F hoses can also be used for vehicle/rail, car loading and discharge, for trailer to fueller transfer and for elevation platform supply (riser) to provide greater kink resistance.
Gummischläuche und -schlauchleitungen für die Flugzeugbetankung - Anforderungen
Anwendungsbereich
Diese Europäische Norm legt die Maße, den Aufbau und die Anforderungen an vier Typen von Schläuchen und Schlauchleitungen fest, die bei allen Arbeiten verwendet wer-den, welche mit der Bodenbetankung und Entleerung von Flugzeugen zusammenhängen.
Alle vier Schlauchtypen sind bestimmt für:
a) die Verwendung mit Kraftstoffen auf Mineralöl-Basis mit einem Volumenanteil an aromatischen Kohlenwasserstoffen, der 30 % nicht übersteigt;
b) einen Betrieb im Temperaturbereich von -30 °C bis +65 °C; während einer Lagerung bei Klimabedingungen von -40 °C bis +70 °C müssen sie unbeschädigt bleiben.
c) einen Betrieb bis 20 bar maximalem Betriebsdruck einschließlich Druckspitzen, denen der Schlauch während des Einsatzes ausgesetzt sein kann.
ANMERKUNG 1: Schläuche vom Typ C sind für die Anwendung bei üblichem Druck an allen Fahrzeugen zur Flugzeug-Betankung vorgesehen. Sie können auch zum Füllen und Entleeren von Fahrzeugen und Eisenbahnwagen verwendet werden, wenn kein übermäßiges Vakuum auftritt.
ANMERKUNG 2: Schläuche vom Typ F können zur Flugzeug-Betankung durch Fahrzeuge verwendet werden, die auch zur Entleerung bei hohen Fließgeschwin-dig-keiten dienen, wo Schläuche vom Typ C nicht geeignet sind.
ANMERKUNG 3: Schläuche vom Typ E und Typ F können auch zum Füllen und Ent-leeren von Fahrzeugen und Eisenbahnwagen, zur Übergabe vom Anhänger zum Zugfahrzeug und zur Versorgung von Hebebühnen (Steigleitungen) verwendet wer-den, um einen größeren Knickwiderstand zu haben.
Tuyaux et flexibles en caoutchouc pour transfert de carburant pour aviation - Spécification
Cette Norme européenne prescrit les dimensions, la construction et les exigences pour quatre types de tuyaux et flexibles destinés a etre utilisés pour toutes les opérations de chargement et déchargement de carburant des avions au sol.
Les quatre types de tuyaux sont prévus pour :
a) etre utilisés avec des carburants a base de pétrole dont la teneur en hydrocarbures aromatiques ne dépasse pas 30 % en volume ;
b) fonctionner dans une plage de température de -30 °C a +65 °C et etre stockés sans dommage dans des conditions climatiques de -40 °C a +70 °C, en position statique ;
c) fonctionner jusqu'a une pression maximum de 20 bars, y compris les surpressions subies en service.
NOTE 1 Les tuyaux de type C sont destinés aux applications générales pour tout véhicule utilisé pour le chargement de carburant des avions. Ils peuvent aussi etre utilisés pour le chargement et le déchargement de citerne/wagon lorsqu'il n'y a pas de vide excessif.
NOTE 2 Les tuyaux de type F peuvent etre utilisés pour la livraison de carburant aux avions sur des véhicules utilisés aussi pour le déchargement a haut débit lorsque les types C ne conviennent pas.
NOTE 3 Les tuyaux de type E et F peuvent aussi etre utilisés pour le chargement et le déchargement de citerne/wagon, pour les remorques a transfert de carburant et pour les plates formes élévatrices afin d'avoir une meilleure résistance au croquage.
Gumene cevi in cevni priključki za pretakanje letalskih goriv - Specifikacija
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SHFLILNDFLMDGummischläuche und -schlauchleitungen für die Flugzeugbetankung - AnforderungenTuyaux et flexibles en caoutchouc pour transfert de carburant pour aviation - SpécificationRubber hoses and hose assemblies for aviation fuel handling - Specification83.140.40Gumene ceviHoses49.100Oprema za servis in vzdrževanje na tlehGround service and maintenance equipmentICS:Ta slovenski standard je istoveten z:EN 1361:2004SIST EN 1361:2004en,fr,de01-oktober-2004SIST EN 1361:2004SLOVENSKI
STANDARDSIST EN 1361:20001DGRPHãþD
SIST EN 1361:2004
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1361July 2004ICS 49.100Supersedes EN 1361:1997
English versionRubber hoses and hose assemblies for aviation fuel handling -SpecificationTuyaux et flexibles en caoutchouc pour transfert decarburant pour aviation - SpécificationGummischläuche und -schlauchleitungen für dieFlugzeugbetankung - AnforderungenThis European Standard was approved by CEN on 1 April 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1361:2004: ESIST EN 1361:2004
EN 1361:2004 (E) 2 Contents page Foreword.4 1 Scope.5 2 Normative references.5 3 Terms and definitions.6 3.1 electrically bonded hose/hose assembly.6 3.2 electrically conductive hose/hose assembly.6 4 Classification.6 5 Service reeling diameter.6 6 Materials & Construction.7 6.1 Hoses.7 6.2 Hose assemblies.7 7 Dimensions.8 7.1 Internal diameters and tolerances.8 7.2 Thickness.8 7.3 Concentricity.8 7.4 Tolerance on length.8 7.5 Mass per unit length of hose.8 8 Physical properties.9 8.1 Rubber compounds.9 9 Finished hose & hose assemblies.10 10 Electrical properties.12 10.1 Type B and type E (electrically bonded).12 10.2 Types C & F (electrically conductive incorporating a semi-conductive cover compound).12 11 Type approval.13 12 Frequency of testing.13 13 Marking.13 13.1 Hoses.13 13.2 Hose assemblies.13 14 Test report.14 15 Cleanliness.14 16 Protection for dispatch and storage.14 Annex A (normative)
Method for determination of fuel-soluble matter.14 A.1 Procedure.14 A.2 Expression of results.15 Annex B (normative)
Method of test for cold embrittlement.16 SIST EN 1361:2004
EN 1361:2004 (E) 3 Annex C (normative)
Method for determination of adhesion between components.17 C.1 Dry adhesion.17 C.2 Adhesion after contact with fuel.17 Annex D (normative)
Method for determination of resistance to fuel contamination.18 D.1 Principle.18 D.2 Procedure.18 D.3 Expression of results.18 Annex E (normative)
Method of test for flexibility at 20 °C.19 Annex F (normative)
Method of test for flexibility at -30 °C.20 Annex G (normative)
Method of test for crush recovery.21 G.1 Apparatus.21 G.1.1 Apparatus 1.21 G.1.2 Apparatus 2.21 G.2 Test piece.21 G.3 Conditioning of test pieces.21 G.4 Procedure.21 Annex H (normative)
Method for determination of cyclic kinking resistance.22 Annex I (normative)
Flammability test.23 I.1 Method.23 I.2 Assessment.23 Annex J (normative)
Hydrostatic tests.25 J.1 Pressure tests on hose lengths and/or hose assemblies.25 J.1.1 Working pressure test.25 J.1.2 Proof pressure test.25 J.2 Bursting pressure test on hose lengths.25 Annex K (normative)
Method of test for vacuum resistance.26 K.1 General.26 K.2 Types B & C only.26 K.3 Types B & C only.26 K.4 Type E only.26 K.5 Type F only.26 Annex L (normative)
Method of test for security of coupling attachment.28 L.1 Apparatus.28 L.2 Procedure.28 L.3 Hose couplings.28 Annex M (normative)
Frequency of testing.29 Annex N (informative)
Production acceptance tests.31 Annex O (informative)
Recommended practice for hose flushing and handling.32 O.1 Flushing.32 O.2 Handling.32 O.3 Inspection.32 O.4 Replacement.33 O.5 Hose re-coupling recommended practice.33 Annex P (informative)
Method of determining torque value.34
SIST EN 1361:2004
EN 1361:2004 (E) 4 Foreword This document (EN 1361:2004) has been prepared by Technical Committee CEN/TC 218 “Rubber and plastics hoses and hose assemblies”, the secretariat of which is held by BSI. 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 January 2005, and conflicting national standards shall be withdrawn at the latest by January 2005. This document supersedes EN 1361:1997. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. SIST EN 1361:2004
EN 1361:2004 (E) 5 1
Scope This document specifies the dimensions, construction and requirements for four types of hoses and hose assemblies for use in all operations associated with the ground fuelling and de-fuelling of aircraft. All four types of hose are designed for: a) use with petroleum fuels, having an aromatic hydrocarbon content not exceeding 30 % by volume; b) operation within the temperature range of –30 °C to +65 °C and are to be undamaged by climatic conditions of -40 °C to +70 °C when stored in static conditions; c) operating up to 20 bar maximum working pressure, including surges of pressure which the hose can be subjected to in service. NOTE 1 Type C hoses are intended for general pressure application on all vehicles used for into – plane fuelling. It can also be used for vehicle/rail car loading and discharge where excessive vacuum does not occur. NOTE 2 Type F hoses can be used for into-plane delivery applications on vehicles that are also used for de-fuelling at high flow rates, where Type C hoses are not suitable. NOTE 3 Types E & F hoses can also be used for vehicle/rail, car loading and discharge, for trailer to fueller transfer and for elevation platform supply (riser) to provide greater kink resistance. 2 Normative references
The following referenced documents are indispensable for theapplication of this document. For dated references, only the edition cited applies. For undated references, the latest editionof the referenced document (including any amendments) applies.
EN 27326 Rubber and plastics hoses — Assessment of ozone resistance under static conditions (ISO 7326:1991) EN 28033, Rubber and plastics hose — Determination of adhesion between components (ISO 8033:1991) EN ISO 1402, Rubber and plastics hoses and hose assemblies - Hydrostatic testing (ISO 1402:1994) EN ISO 4671, Rubber and plastics hose and hose assemblies - Methods of measurement of dimensions (ISO 4671:1999) EN ISO 4672, Rubber and plastics hoses - Sub-ambient temperature flexibility tests (ISO 4672:1997) EN ISO 6246, Petroleum products - Gum content of light and middle distillate fuels - Jet evaporation method (ISO 6246:1995) EN ISO 8031, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance (ISO 8031:1993) EN ISO 8330, Rubber and plastics hoses and hose assemblies - Vocabulary (ISO 8330:1998) ISO 37, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties ISO 188, Rubber, vulcanized or thermoplastic - Accelerated ageing and heat resistance tests ISO 1817:1999, Rubber, vulcanized — Determination of the effect of liquids ISO 4649, Rubber, vulcanized or thermoplastic - Determination of abrasion resistance using a rotating cylindrical drum device SIST EN 1361:2004
EN 1361:2004 (E) 6
3 Terms and definitions For the purposes of this document, the terms and definitions given in EN ISO 8330 and the following apply. 3.1
electrically bonded hose/hose assembly
hose/hose assembly that uses a metallic wire connection to conduct static electricity 3.2
electrically conductive hose/hose assembly hose/hose assembly that is capable of conducting static electrical charges, using a conductive rubber layer, without the use of a metallic wire 4 Classification Hoses for this application are classified into four types and two grades according to their construction and electrical properties. Type Grade Construction B M Electrically bonded, incorporating at least two low resistance electrically bonding wires and a conductive cover compound C Ω Electrically conductive, incorporating a conductive cover compound E M Electrically bonded, incorporating at least one metallic wire helix, with enhanced de-fuelling capability, at least two low-resistance electrically conductive wires and a conductive cover compound F Ω Electrically conductive, incorporating at least one non-electrically conductive non-metallic helix and conductive cover compound
5 Service reeling diameter Hoses shall be designed for operation on equipment fitted with hose reels of the diameters given in Table 1. NOTE These hoses remain substantially circular in cross section when reeled on drums (see Table 1) and should not be confused with hoses of the collapsible type that are intended to be reeled flat. SIST EN 1361:2004
EN 1361:2004 (E) 7
Table 1 — Service reeling diameters
Nominal bore Minimum external diameter of reeling drum used in service
mm 19 225 25 300 32 375 38 450 50 550 63 600 75 600 76 600 100 900 101 900
6 Materials & Construction 6.1 Hoses If a hose is built and vulcanized on a mandrel, particulate type release agents shall not be used. A hose shall be uniform in quality, free from porosity, air holes, foreign inclusions and other defects. A hose shall comprise: A lining of synthetic rubber resistant to petroleum fuel. A reinforcement of layers of woven, braided or spiral wound textile material. Type E shall incorporate one or more metallic wire helix or helices. Type F shall incorporate one or more non-metallic helix or helices. A cover of synthetic rubber shall be conductive, resistant to abrasion, outdoor exposure and petroleum fuel. Types B & E shall also incorporate low resistance electrically conductive wires to enable the hoses to be electrically bonded to the couplings when manufacturing a hose assembly.
NOTE A hose cover may have a shallow cloth marked finish. 6.2 Hose assemblies In order to produce the required electrical properties, the method of attachment of the couplings shall be in accordance with Clause 10. SIST EN 1361:2004
EN 1361:2004 (E) 8 7 Dimensions 7.1 Internal diameters and tolerances When measured in accordance with EN ISO 4671 the internal diameters and tolerances shall comply with the values given in Table 2. Table 2 — Nominal bore, internal diameters and tolerances
Nominal bore Internal diametermm Tolerance mm 19 19,0 ± 0,8 25 25,0
32 32,0
38 38,0
50 50,0 ± 1,2 63 63,0
75 75,0
76 76,0
100 100,0 ± 1,6 101 101,5
7.2 Thickness When measured in accordance with EN ISO 4671 the thickness of the lining for hoses of all internal diameters shall not be less than 1,6 mm. For hoses of nominal bore less than 50, the thickness of the cover shall not be less than 1,6 mm. For hoses of nominal bore 50 and above, the thickness of the cover shall not be less than 2,0 mm. 7.3 Concentricity When determined in accordance with EN ISO 4671, the concentricity, based on a total indicator reading between the internal diameter and the outside surface of the cover, shall not exceed 1 mm. 7.4 Tolerance on length The tolerance on the measured length of hose or hose assembly shall be ± 1 %. 7.5 Mass per unit length of hose The maximum mass per unit length shall comply with the values given in Table 3. SIST EN 1361:2004
EN 1361:2004 (E) 9
Table 3 — Mass per unit length of hoses Nominal bore Type B and type C Kg/m Type E and type F
Kg/m 19 0,9 1,1 25 1,1 1,5 32 1,4 1,9 38 1,7 2,2 50 2,7 3,0 63 3,5 4,0 75 4,0 4,7 76 4,0 4,7 100 6,5 7,5 101 6,5 7,5 8 Physical properties 8.1 Rubber compounds The physical properties of the rubber compounds used for the lining and cover shall comply with the values given in Table 4, when tested by the methods listed in Table 4. Tests shall be carried out either on samples taken from the hose or from separately vulcanized sheets, except for cold embrittlement and abrasion resistance tests which shall be carried out on moulded test pieces vulcanized to the same state as the hose. Table 4 — Physical properties of rubber compounds Property Unit Requirement Method of test
Lining Cover
Tensile strength, min. MPa 7,0 7,0 ISO 37
(dumb-bell test pieces) Elongation at break, min. % 250 300 ISO 37
(dumb-bell test pieces) Swelling in fuel, max. % 50 75 8.2 of ISO 1817:1999
(48 h at 40 °C in liquid B) Fuel-soluble matter, max. % 4,0 Not Annex A Cold embrittlement
No No cracking Annex B
cracking
Abrasion resistance, max mm3 Not 140 Method A of ISO 4649
applicable
Ageing %
ISO 188 (7 days at 70 °C) (air-
oven method) Tensile strength change, max.
± 30 ± 30
Elongation at break change, max.
± 30 ± 30
SIST EN 1361:2004
EN 1361:2004 (E) 10 9 Finished hose & hose assemblies The physical properties of the finished hose & hose assemblies shall comply with the values given in Table 5, when tested by the methods listed in Table 5. SIST EN 1361:2004
EN 1361:2004 (E) 11 Table 5 — Physical properties of finished hoses and hose assemblies
Unit Requirement Method of Hose dimensions
Internal diameter mm See Table 2 EN ISO 4671Lining thickness (min.) mm 1.6 EN ISO 4671Cover thickness (min.) mm 1,6 (inside diameter < 50 mm) EN ISO 4671
2,0 (inside diameter ≥ 50 mm)
Concentricity (max.) mm 1,0 EN ISO 4671Length tolerance % ± 1,0 EN ISO 4671Mass (max.) Kg/m See Table 3
Hose tests
Adhesion between components N/mm 3,0 Annex C (dry) min.
After contact with fuel (min.) N/mm 2,0
Fuel contamination Re (max.) mg/100 ml10 Annex D Ozone resistance — No cracking observed under x2 magnification Method 2 or 3 of EN 27326
(40 ºC) Flexibility at ambient & low temperature — No permanent deformation or visible structural damage, no increase in electrical resistance outside the specified limits, no impairment of electrical continuity and shall comply with the proof pressure requirements in Annex J (20 ± 5) °C.
Annex E (20 ºC) Annex F (-30 ºC) Crush recovery (type F only) —
After 1 min
Regain 90 % of original diameter
After 10 min
Regain 95 % of original diameter Annex G
Shall comply with the proof pressure requirement in Annex J (20 ± 5) ºC
Cyclic kinking — No leakage at proof pressure at (20 ± 5) °C
(types B & C only)
No increase in electrical resistance or
impairment of electrical continuity, Annex H
No adhesion between components to be
less than 2,0 N/mm
Annex I Flammability — Hose shall cease to burn immediately on removal of flame and there shall be no glowing visible after 2 min
Change in length at working % Types B & C: +7 pressure (max.)
Types E & F: +12 Annex J Proof pressure 40 bar No leakage or damage
No increase in electrical continuity or Annex J
Resistance, outside the specified limits Annex J Burst pressure (min.) bar 80 Annex J SIST EN 1361:2004
EN 1361:2004 (E) 12
Vacuum test bar Types B & C at 0,15 bar absolute, no visible Annex K
structural damage
Types B & C: at 0,85 bar absolute, loss of
circularity not to exceed 20 % of internal
diameter Annex K
Type E only: at 0,15 bar absolute,
In accordance with Annex K
Type F only: at 0,35 bar absolute, in
accordance with Annex K
Electrical properties ohms 10.1, 10.2
The electrical properties of the hose shall be such that the electrical requirement for the hose assemblies are met
Hose assembly tests
40 bar No leakage or damage
No increase in electrical continuity or
Proof pressure
resistance outside the specified limits Annex J Security of couplings bar No leakage or movement of the couplings Annex L
of the hose at the specified pressures
Electrical properties Types B & E:
100 ohms max. 10.1
ohms /
Assembly Types C & F:
103 – 106
ohms 10.2 Torque value
Nm Recorded value Annex P
10 Electrical properties 10.1 Type B and type E (electrically bonded) No fewer than two low resistance electrical bonding wires shall be provided between, or incorporated in, the reinforcement plies and arranged in such a manner that electrical continuity is maintained along the length of the hose in service. Each bonding wire shall have not less than nine strands. The metal used shall have high resistance to fatigue. When attaching couplings to type B and type E hoses, the protruding length of bonding wire shall be folded into the hose bore, positioned between lining and fitting tail and extended along approximately half the length of the fitting tail. If the hose is supplied without couplings, bonding wires shall protrude approximately 150 mm at each end of the hose. When tested in accordance with EN ISO 8031, the electrical resistance shall have a maximum value of 1x102
/assembly. NOTE When confirming electrical continuity on production hose assembly tests a suitable and quick method is by the use of a 4,5 V battery and a 3,5 V, 0.3 A test bulb. A dimly lighted bulb is sufficient to indicate satisfactory continuity. 10.2 Types C & F (electrically conductive incorporating a semi-conductive cover compound) For the assemblies it is necessary to create a connection between the hose cover and the coupling. When tested in accordance with EN ISO 8031, the electrical resistance shall be between the following limits. (1 x 103) ohms to (1 x 106) ohms per assembly SIST EN 1361:2004
EN 1361:2004 (E) 13
11 Type approval The approval is obtained by the manufacturer supplying evidence that all the material, construction and test requirement of this document have been met by the method of manufacture and hose design. Type approval tests shall be repeated at a minimum of every five years or whenever a change of manufacture or materials occur. 12 Frequency of testing Type approval and routine tests are specified in Annex M. Type approval tests are those tests required to obtain type approval. Routine tests are those tests that must be carried out on all hose or hose assemblies prior to dispatch. Production acceptance tests are those tests, specified in Annex N, which should be carried out by the manufacture to control the quality of his manufacture. The frequency specified in Annex N is a guide. Annex N is an informative Annex only. 13 Marking 13.1 Hoses The hose shall be legibly and durably marked, at intervals of not more than 1 m on the outer cover, with the following information: a) manufacturer's name or identification, e.g. MAN; b) manufacturer's product identification, e.g. No 123; c) number and date of this document, EN 1361:2003; d) type, /Grade e.g. C/Ω; e) nominal bore, e.g. 63; f) maximum working pressure, in bar, e.g. 20; g) quarter and year of manufacture, e.g. 2 Q 03; h) unique serial number. EXAMPLE : MAN/No 123/EN 1361:2003/C/Ω/63/20/2Q03/0001 13.2 Hose assemblies The couplings shall be permanently marked with the following information: a) name or identification of the assembler; b) a serial number corresponding to a hydrostatic test report. This serial number shall be recorded on test inspection document by the hose assembly manufacturer, at time of factory testing. NOTE It is recommended that hoses be supplied to the end user complete with couplings, i.e. as a hose assembly. SIST EN 1361:2004
EN 1361:2004 (E) 14 14 Test report When requested, a test report shall be provided with each length of hose or hose assembly, containing the following, as appropriate: a) hose manufacturer's name; b) coupling manufacturer's name; c) assembler's name; d) hose type/grade; e) length and nominal bore of the hose or assembly; f) serial or reference number of hose; g) serial or reference number of assembly; h) quarter and year of hose manufacture; i) month and year of assembly manufacture; j) hydrostatic proof pressure; k) electrical resistance; l) d
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