ISO 8330 pdf Vocabulary rubber hoses accemblies standard

Date:Jun 20, 2019

BS EN  ISO 8330 standard is for Rubber and plastics hoses and hose assemblies Vocabulary. The committee responsible for this document is ISO/TC 45, Rubber and rubber products, Subcommittee SC 1, Rubber and plastics hoses and hose assemblies.

This International Standard defines terms used in the hose industry. This International Standard is divided into two subclauses, namely

— 2.1: hose terms, and

— 2.2: hose assembly terms.

2 Terms and definitions

2.1 Hose terms



strength of bond between cured rubber surfaces or between a cured rubber surface and a non-rubber surface or the strength of bond between two non-rubber (plastics) hose layers fused or glued together


angle of braid angle of lay

acute angle between any strand of the braid (2.1.17) and a line parallel to the axis of the hose


anti-static wire

bonding wire

conducting wire

metal wire (usually manufactured from thin braided copper wires) incorporated in the hose wall (2.1.60)

in order to remove static electricity generated in the hose, and usually connected to the couplings (2.2.10)

of an assembly


armoured hose

hose (2.1.58) with a protective covering, generally applied as a braid (2.1.17) or helix (2.1.54), to minimize

physical damage



protective covering over a hose, generally applied as a braid (2.1.17) or helix (2.1.54) to prevent

mechanical damage or to support the reinforcement (2.1.109) of a hose section



thin layer of film (polymeric) within the construction of the hose for preventing fluid or gas from

diffusing through the hose wall (2.1.60) to the atmosphere


bend radius

radius of a bent section of hose measured to the innermost surface of the curved portion



<of a hose> forcing the hose out of a straight line into a curved position


bending force

load required to induce bending (2.1.8) around a specified radius and hence a measure of stiffness


bias angle

smaller included angle between the warp (2.1.145)threads of a cloth and a diagonal line cutting across

the warp threads


bias cut

cut made diagonally across a textile material at an angle less than 90° to the longitudinal axis


bias seam

seam at which bias cut (2.1.11) fabrics are joined together



hollow space between layers in the hose wall (2.1.60), in which air or other gasses are entrapped

[SOURCE: ISO 1382]


body wire

round or flat wire helix embedded in the hose wall (2.1.60) to increase strength or to resist collapse


bonded hose construction

hose (2.1.58) with conductive metallic elements incorporated in the hose construction

Note 1 to entry: When determined in accordance with ISO 8031, the electrical resistance per unit length in the

case of hoses (lengths without couplings), or the electrical resistance between the fittings, in the case of hose

assemblies, does not exceed 10 2 Ω.



inside of a hose through which the material to be conveyed passes



continuous sleeve (2.2.38) of interwoven single or multiple strands of yarn (2.1.157) textile or wire


braided hose

hose (2.1.58) in which the reinforcement has been applied as interwoven spiral strands



mark or symbol identifying the hose in accordance with the relevant International Standard, the mark

or symbol being embossed, inlaid or printed on the hose, coupling (2.2.10) or hose assembly

Note 1 to entry: In the relevant International Standard, a colour code may be included at the option of the



breaker ply

open mesh fabric (2.1.46) used to enhance the bond between a hose lining (2.1.78) or cover and its

carcass and to spread impact

Note 1 to entry: This element can also add reinforcement (2.1.109) to these components.


burst pressure

pressure at which rupture of the hose occurs when tested to the relevant International Standard


capped end

DEPRECATED: sealed end

hose end covered to protect its internal elements



fabric (2.1.46), cord and/or metal reinforcing section of a hose, as distinguished from the hose tube or

cover (2.1.35)

Note 1 to entry: See reinforcement (2.1.109).


cloth-marked finish

appearance of the vulcanized cover produced by straight or spiral wrapping (2.1.123) used during

vulcanization (2.1.114) and subsequently removed

Note 1 to entry: See wrapper marks (2.1.156).


coiling diameter

minimum diameter of coil to which a hose can be coiled without damage


collapsible hose

softwall hose (2.1.120) which, when unpressurized internally, can be coiled or folded on itself

Note 1 to entry: See layflat hose (2.1.76).


composite hose

multilayer hose

hose (2.1.58) consisting of layers of non-vulcanized materials in sheeting form held together by two

metal or plastics spirals (one inside and one outside)



mixture of rubber or plastic and other materials that are combined to give the desired properties when

used in the manufacture of a hose

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