ISO 5772 pdf download.Rubber hoses and hose assemblies for measured fuel dispensing — Specification
1 Scope
This International Standard specifies the requirements for three types of rubber hose and hose assembly used for measured fuel dispensing, including oxygenated fuels (up to a maximum of 1 5 % oxygenated compounds). The three types of hose are as follows: a) type 1 : hoses with textile reinforcement suitable for reeling on a drum or hanging in bends; b) type 2: hoses with textile and helical wire reinforcement designed for torsional flexibility, suitable for coiling, reeling on a drum or hanging in bends; c) type 3: hoses with fine wire reinforcement designed for low dilation, suitable for reeling on a drum or hanging in bends.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 37:1 994, Rubber, vulcanized or thermoplastic — Determination of tensile stress-strain properties. ISO 1 88:1 998, Rubber, vulcanized or thermoplastic — Accelerated ageing and heat-resistance tests. ISO 1 307:1 992, Rubber and plastics hoses for general-purpose industrial applications — Bore diameters and tolerances, and tolerances on length. ISO 1 402:1 994, Rubber and plastics hoses and hose assemblies — Hydrostatic testing. ISO 1 746:1 998, Rubber or plastics hoses and tubing — Bending tests. ISO 1 81 7:— 1 ) , Rubber, vulcanized — Determination of the effect of liquids. ISO 4649:1 985, Rubber — Determination of abrasion resistance using a rotating cylindrical drum device. ISO 4672:1 997, Rubber and plastics hoses — Sub-ambient temperature flexibility tests.
ISO 6801 :1 983, Rubber or plastics hoses — Determination of volumetric expansion. ISO 7326:1 991 , Rubber and plastics hoses — Assessment of ozone resistance under static conditions. ISO 8031 :1 993, Rubber and plastics hoses and hose assemblies — Determination of electrical resistance. ISO 8033:1 991 , Rubber and plastics hose — Determination of adhesion between components.
3 Materials and construction
The hose shall consist of the following: – a smooth, fuel-resistant lining of rubber or thermoplastic elastomer (TPE); – a suitable reinforcement; – a non-corrugated, fuel- and weather-resistant rubber or TPE cover. Coupled hose assemblies shall be capable of conducting an electrical charge from coupling to coupling. When this capability is provided by means of metallic wires, not less than two (crossed) metallic bonding wires shall be embedded in the hose, and the metal used shall have a high resistance to fatigue, work hardening and corrosion. Hoses with metallic wires for electrical conductivity shall be designated “M” and those using conductive compounds shall be designated “Ω”, the relevant mark being branded on the hose (see clause 9). NOTE Non-reusable corrosion-resistant couplings should preferably be used for this application.
5 Dimensions and tolerances
5.1 Internal diameter The internal diameter of the hose shall comply with the dimensions given in table 1 . 5.2 Minimum thickness of lining and cover The thickness of the lining shall be not less than 1 ,6 mm. The thickness of the cover shall be not less than 1 ,0 mm. 5.3 Cut lengths For cut lengths, the tolerances on length shall comply with ISO 1 307.