Rubber hose and hose assemblies for transferring anhydrous ammonia - Specification (including Corr 1:1995)

Migrated from Progress Sheet (TC Comment) (2000-07-10): New edition of ISO 5771 to be circulated for PQ awaiting publication. ++ ISO document target date estimated stage 21 is 1994-04

Gummischläuche und Schlauchleitungen für den Transport von wasserfreiem Ammoniak - Anforderungen (einschließlich Corr 1:1995)

Diese Internationale Norm legt Mindestanforderungen an Gummischläuche fest, die bei Umgebungstemperaturen zwischen -40 °C und +55 °C zum Transport von flüssigem oder gasförmigem Ammoniak verwendet werden. Nicht erfaßt werden Anforderungen an Armaturen; die Norm gilt nur für Schläuche und Schlauchleitungen.

Tuyaux et flexibles en caoutchouc pour le transfert d'ammoniac anhydre - Spécifications (inclus Corr 1:1995)

Gumene cevi ter cevni priključki za prenos brezvodnega amoniaka - Specifikacija (vključno s popravkom 1:1995)

General Information

Publication Date
Withdrawal Date
Current Stage
9960 - Withdrawal effective - Withdrawal
Due Date
Completion Date


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SIST EN ISO 5771:2000

Rubber hose and hose assemblies for transferring anhydrous ammonia - Specification

(including Corr 1:1995)
Gummischläuche und Schlauchleitungen für den Transport von wasserfreiem Ammoniak
- Anforderungen (einschließlich Corr 1:1995)

Tuyaux et flexibles en caoutchouc pour le transfert d'ammoniac anhydre - Spécifications

(inclus Corr 1:1995)
Ta slovenski standard je istoveten z: EN ISO 5771:1996
23.040.70 Gumene cevi in armature Hoses and hose assemblies
SIST EN ISO 5771:2000 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 5771:2000
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SIST EN ISO 5771:2000
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SIST EN ISO 5771:2000
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SIST EN ISO 5771:2000
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SIST EN ISO 5771:2000
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SIST EN ISO 5771:2000
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SIST EN ISO 5771:2000
IS0 5771:1994(E)
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work
of preparing International Standards is normally carried out through IS0
technical committees. Each member body interested in a subject for
which a technical committee has been established has the right to be
represented on that committee. International organizations, governmental
and non-governmental, in liaison with ISO, also take part in the work. IS0
collaborates closely with the International Electrotechnical Commission
(I EC) on all matters of electrotechnical standardization.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard IS0 5771 was prepared by Technical Committee
lSO/TC 45, Rubber and rubber products, Subcommittee SC 1, Hoses
(rubber and plastics).
This second edition cancels and replaces the first edition
(IS0 5771:1981), which has been technically revised.
0 IS0 1994

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced

or utilized in any form or by any means, electronic or mechanical, including photocopying and

microfilm, without permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
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SIST EN ISO 5771:2000
Rubber hose and hose assemblies for transferring
anhydrous ammonia - Specification
IS0 1402: -*I, Rubber and plastics hoses and hose
1 Scope
assemblies - Hydrostatic testing.
This International Standard specifies the minimum re-
IS0 4671: 1984, Rubber and plastics hose and hose
quirements for rubber hose used for transferring am-
assemblies - Methods of measurement of dimen-
monia, in liquid or in gaseous form, at ambient
temperatures between - 40 “C and + 55 “C. It does
not include specifications for end fittings, but is lim-
IS0 4672:1988, Rubber and plastics hoses - Sub-
ited to the performance of the hose and hose as-
ambient temperature flexibility tests.
IS0 7326:1991, Rubber and plastics hoses - As-
sessmen t of ozone resistance under static
2 Normative references
The following standards contain provisions which,
IS0 8033:1991, Rubber and plastics hose - Deter-
through reference in this text, constitute provisions
mination of adhesion between components.
of this International Standard. At the time of publi-
cation, the editions indicated were valid. All standards
3 Pressure rating
and parties to agreements
are subject to revision,
based on this International Standard are encouraged
The pressure rating of the hose shall comply with the
to investigate the possibility of applying the most re-
requirements of table 1.
cent editions of the standards indicated below.
Members of IEC and IS0 maintain registers of cur-
rently valid International Standards.
Table 1 - Pressure requirements
Pressure requirements
IS0 37:1994, Rubber, vulcanized or thermoplastic -
Determination of tensile stress-strain properties.
MPa bar
IS0 188: 1982, Rubber, vulcanized - Accelerated
Maximum working pressure 25
ageing or hea t-resistance tests.
Proof test pressure 63
Minimum burst pressure 12,5 125
IS0 471 :--J, Rubber - Times, temperatures and hu-
midities for conditioning and testing.
1) To be published. (Revision of IS0 471:1983 and IS0 1826:1981)
2) To be published. (Revision of IS0 1402:1984)
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SIST EN ISO 5771:2000
0 IS0
IS0 5771:1994(E)
4.3 Cover
4 Materials, construction and
The rubber cover, if used, shall be uniform in quality
and thickness and shall be free from injurious defects.
It shall comply with the relevant requirements for
physical properties specified in table2 and shall be so
4.1 Lining
compounded or constructed that it will not blister in
service. It shall be resistant to deterioration due to
The lining shall be of uniform thickness, reasonably
exposure to ammonia and due to exposure to the
concentric, and free from holes, porosity and other
environment. A gas-tight cover shall be pricked during
defects. It shall comply with the relevant require-
manufacture to permit the release of any permeating
ments for physical properties specified in table2. The
gas in service. The pricking shall not penetrate beyond
material used shall be resistant to hardening or other
the thickness of the cover.
deterioration due to the action of ammonia.
4.4 Assembly
The whole asse mbly shall comply with the require-
4.2 Reinforcement
ments of table 3 in order to ensure good operation.
The reinforcement shall consist of a material not ad-
4.5 General requirements
versely affected by permeating ammonia. It shall be
applied evenly and uniformly, and in such a way that
The hose or hose assembly shall comply with the re-
it complies with the relevant requirements for physical
quirements of table2 and table3 and there shall be
properties specified in table 2.
no evidence of blistering or cracking of the cover or
of the lining or of leakage after ammonia conditioning
A suitable material is corrosion-resistant stainless
(6.2.2) or after flexing of the conditioned hose (6.2.3).
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SIST EN ISO 5771:2000
IS0 5771:1994(E)

Table 2 - Requirements for physical properties of lining, reinforcement and cover

Property Requirement Method of test
Proof test pressure 6,3 MPa IS0 1402
+ 5 % at maximum working
Change in length IS0 1402
12,5 MPa
Burst pressure IS0 1402
Adhesion IS0 8033
Lining I,5 kN/m
Reinforcement I,5 kN/m NOTE
- Sample taken upon com-
Cover I,5 kN/m
pletion of 30-day ammonia resistance
test (see 6.2).
Physical properties
- Lining thickness, min. I,5 mm
IS0 4671
- Tensile strength, lining, min. 7,0 MPa
- Elongation at break, lining, min. 200 %
IS0 37
- Tensile strength, cover, min. 8,5 MPa
- Elongation at break, cover, min. 200 %
No cracks or breaks
Low-temperature test See 6.1
Ammonia resistance
- Minimum burst pressure for both test
pieces after flexing 15,6 MPa See 6.2
- Maximum change in tensile strength after
flexing, lining and cover 20 %
- Maximum change in elongation at break
after flexing, lining and cover 50 %
Ozone resistance, cover No cracks
IS0 7326:1991, method 1
Accelerated ageing
- Change in tensile strength,
cover, max. 20 % IS0 188, (70 ‘$ h at 70 “C
- Change in elongation at break,
cover, max. 50 %
Table 3 - Delivery and annual

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