SIST EN ISO 3994:2000
(Main)Plastics hoses - Helical-thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials - Specification (ISO 3994:1998)
Plastics hoses - Helical-thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials - Specification (ISO 3994:1998)
Kunststoffschläuche - Thermoplastischwendelverstärkte thermoplastische Schläuche zum Ansaugen und Entladen wässeriger Stoffe - Anforderungen (ISO 3994:1998)
Diese Internationale Norm legt die Anforderungen für drei mit einer thermoplastischen Wendel verstärkte Typen thermoplastischer Schläuche zum Ansaugen und Entladen im Temperaturbereich von -10°C bis +55°C fest. Die in dieser Internationalen Norm enthaltenen Schlauchtypen sind nicht für entflammbare und brennbare Materialien oder aromatische Lösungsmittel bestimmt.
Tuyaux en plastiques - Tuyaux-thermoplastiques a renforcement thermoplastique en spirale et refoulement de matieres aqueuses - Spécifications (ISO 3994:1998)
La présente Norme internationale spécifie les exigences pour trois types de tuyaux thermoplastiques à renforcement thermoplastique en spirale pour aspiration et refoulement pour une utilisation dans la plage de températurede 10 °Cà 55 °C. Les types de tuyaux traités dans la présente Norme internationale ne sont pas prévus pour une utilisation avec des matériaux inflammables et combustibles, ni avec des solvants aromatiques.
NOTE : Des tuyaux de construction similaire pour aspiration et refoulement dans la lutte contre l'incendie sont spécifiés dans l'ISO 14775.
Plastics hoses - Helical-thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials - Specification (ISO 3994:1998)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 3994:2000
01-december-2000
Plastics hoses - Helical-thermoplastic-reinforced thermoplastics hoses for suction
and discharge of aqueous materials - Specification (ISO 3994:1998)
Plastics hoses - Helical-thermoplastic-reinforced thermoplastics hoses for suction and
discharge of aqueous materials - Specification (ISO 3994:1998)
Kunststoffschläuche - Thermoplastischwendelverstärkte thermoplastische Schläuche
zum Ansaugen und Entladen wässeriger Stoffe - Anforderungen (ISO 3994:1998)
Tuyaux en plastiques - Tuyaux-thermoplastiques a renforcement thermoplastique en
spirale et refoulement de matieres aqueuses - Spécifications (ISO 3994:1998)
Ta slovenski standard je istoveten z: EN ISO 3994:2000
ICS:
23.040.70 Gumene cevi in armature Hoses and hose assemblies
SIST EN ISO 3994:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 3994:2000
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SIST EN ISO 3994:2000
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SIST EN ISO 3994:2000
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SIST EN ISO 3994:2000
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SIST EN ISO 3994:2000
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SIST EN ISO 3994:2000
INTERNATIONAL IS0
STANDARD 3994
Second edition
1998-04-01
Plastics hoses - Helical-thermoplastic-
reinforced thermoplastics hoses for suction
and discharge of aqueous materials -
Specification
Tuyaux en plastiques - Tuyaux thermoplastiques 2 renforcement
thermoplastique en spirale pour aspiration et refoulement de mat&es
aqueuses - Spkifications
Reference number
IS0 3994: 1998(E)
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SIST EN ISO 3994:2000
IS0 3994:1998(E)
Foreword
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
(IEC) 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 3994 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 3994:1977),
which has been technically revised.
Annexes A, B and C form an integral part of this International Standard.
0 IS0 1998
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
Internet central @ isoch
x.400 c=ch; a=400net; p=iso; o=isocs; s=central
Printed in Switzerland
ii
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SIST EN ISO 3994:2000
IS0 3994:1998(E)
Introduction
This International Standard has been prepared to provide minimum acceptable requirements for the
satisfactory performance of polymer reinforced thermoplastics hoses for suction and discharge
applications, conveying water, aqueous chemical solutions and abrasive solids and slurries.
If there is a special requirement for resistance to deleterious chemicals this shall be a matter for agreement
between the supplier and the purchaser.
The list of nominal bores given in tables 1 and 2 is not intended to be restrictive or to preclude the
manufacture of other sizes than those of the R 10 series of preferred numbers (the basis of the tables) and
which may be the subject of individual national standards but compliance with this standard can not be
claimed.
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SIST EN ISO 3994:2000
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SIST EN ISO 3994:2000
IS0 3994: 1998(E)
INTERNATIONAL STANDARD @ IS0
Plastics hoses - Helical-thermoplastic-reinforced thermoplastics
hoses for suction and discharge of aqueous materials -
Specification
1
Scope
This International Standard specifies the requirements for three types of helical thermoplastic reinforced
thermoplastics hoses for suction and discharge applications for use in the temperature range from
-10 “C to +55 “C.
The types of hoses covered in this International Standard are not intended for use with flammable and
combustible materials nor with aromatic solvents.
NOTE Hoses of a similar construction for suction and discharge for fire fighting are specified in
IS0 14775.
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 IS0 maintain registers of currently valid International Standards.
IS0 116: 1976 Plastics - Determination of loss of plasticizers - Activated carbon method.
Standard atmospheres for conditioning and/or testing - Specifications
IS0 554: 1976
.
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SIST EN ISO 3994:2000
IS0 3994: 1998(E)
IS0 130 7: 1992 Rubber and plastics hoses for general-purpose industrial applications - Bore diameters
and tolerances, and tolerances on length.
IS0 1402: 1994 Rubber and plastics hoses and hose assemblies - Hydrostatic testing.
IS0 1746: 1983 Rubber or plastics hoses and tubing - Bending test.
Sub-ambient temperature flexibility tests
IS0 4672: 1997 Rubber andplastics hoses -
IS0 8330: 1998 Rubber and plastics hoses and hose assemblies - Vocabulary
IS0 11758: 1995 Rubber andplastics hoses - Exposure to a Xenon arc lamp - Determination of changes
in colour and appearance.
3 Terms and definitions
8330 apply.
For the purposes of this International Standard the terms and definitions given in IS0
4
Types
Three types of hoses are specified related to the pressure of suction and safety ratios and related burst
pressure, see tables 3,4 and 5.
The safety ratios are as follows:
Type 1 - 1 : 2,5 (light service)
Type 2 - 1 : 3,15 (normal service)
Type3-1:4 (heavy service)
All types are designed to operate in the temperature range - 10 o C to +55 O C.
5 Materials and construction
The hoses shall be as uniform as commercially practicable in colour, opacity and other physical properties.
They shall consist of a flexible thermoplastics material supported in its mass by a helix of thermoplastic
material of a similar molecular structure. The reinforcing and flexible components of the wall shall be
fused and free from visible cracks, porosity, foreign inclusions or other defects such as are liable to cause
failure of the hoses in service.
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SIST EN ISO 3994:2000
IS0 3994:1998(E)
6 Dimensions and tolerances
61 . Nominal bore, internal diameters and tolerances
The nominal bore, internal diameters and tolerances of the hoses shall meet the requirements given in tables
1 and 2, which are in accordance with IS0 1307.
- Nominal bore, internal diameters and tolerances - Types 1 and 2
Table 1
Nominal bore Internal diameter Tolerances
mm
mm
12,5
12,5 It 0,75
16
16 rfi: 0,75
20 20 i 0,75
F
23
25 ~fr 1,25
z
xix I,25
31J 31,5
40 40 * 1,50
50 50 k 1,50
63 63 rf: 1,50
80
80 k 2,00
100 100 * 2,00
125 125 * 2,00
160 160 rt 2,00
Table 2 - Nominal bore, internal diameters and tolerances - Type 3
Tolerances
Nominal bore Internal diameter
mm mm
xiz 1,25
25
31,5 * 1,25
AI 1,50
40
* 1,50
50
* 1,50
63
* 2,00
80
100 k 2,00
xk 2,00
125
It 2,00
160
k 2,00
200
It 3,00
250
* 3,00
315
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SIST EN ISO 3994:2000
IS0 3994: 1998(E)
62 .
Length tolerances
The tolerances on cut lengths shall be in accordance with IS0 1307.
7
Performance requirements of hoses
71 . Hydrostatic test at standard laboratory temperature
When tested by the method specified in IS0 1402 at standard laboratory temperature chosen from
IS0 554, the hoses shall meet the requirements given in table 3.
At proof pressure (i.e. 50 % of minimum burst pressure) the hoses shall be examined for evidence of
leakage, cracking, abrupt distortion indicating irregularity in materials or manuf
...
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