SIST ISO 1167:1996
(Main)Plastics pipes for the transport of fluids -- Determination of the resistance to internal pressure
Plastics pipes for the transport of fluids -- Determination of the resistance to internal pressure
Tubes en matières plastiques pour le transport des fluides -- Détermination de la résistance à la pression intérieure
Plastične cevi za transport tekočin - Določanje odpornosti na notranji pritisk
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INTERNATIONAL STANDARD
‘ale
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEXnYHAPOflHAR OPTAHRSAUMR Il0 CTAHflAPTM3AUMW *ORGANISATION INTERNATIONALE DE NORMALISATION
L
Plastics pipes for the transport of fluids - Determination of
the resistance to internal pressure
First edition - 1973-12-01
UDC 621.643.33 Ref. No. IS0 1167-1973 (E)
Derriptors : pipes (tubes), plastic pipes, tests, high pressure tests, internal pressure.
Price based on 4 pages
---------------------- Page: 1 ----------------------
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International Standards is carried out through IS0 Technical Committees. Every
Member Body interested in a subject for which a Technical Committee has been set
up 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.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as International
Standards by the IS0 Council.
Prior to 1972, the results of the work of the Technical Committees were published
as IS0 Recommendations; these documents are now in the process of being
transformed into International Standards. As part of this process, International
IS0 1167 replaces IS0 Recommendation R 1167-1970 drawn up by
Standard
Technical Committee ISO/TC 5, Pipes and fittings. Technical Committee
ISO/TC 138, Plastics pipes and fittings for the transport of fluids, set up in 1970,
took over the responsibility for this document.
The Member Bodies of the following countries approved the Recommendation :
Australia Greece Poland
Belgium India South Africa, Rep. of
Canada Ireland Spain
Chile Israel Sweden
Czechoslovakia Italy Switzerland
Denmark Japan Turkey
Egypt, Arab Rep. of Korea, Dem.P.Rep. of United Kingdom
France Netherlands
U.S.S. R.
Germany Norway Y ugosl av ia
The Member Body of the following country expressed disapproval of the
Recommendation on technical grounds :
New Zealand*
*
Subsequently, this Member Body approved the Recommendation.
O International Organization for Standardization, 1973 O
Printed in Switzerland
---------------------- Page: 2 ----------------------
INTERNATIONAL STANDARD IS0 1167-1973 (E)
Determination of
Plastics pipes for the transport of fluids -
the resistance to internal pressure
1 SCOPE AND FIELD OF APPLICATION Two types of test are provided for
- Acceptance tests, carried out at a temperature of
This International Standard specifies the testing apparatus
and the test procedure to be applied for determining the 20 OC. These allow a fast verification of the conformity
resistance of plastics pipes to a constant internal pressure of a batch of pipes to a specified type.
and the bursting time of these pipes.
. - Quality tests, carried out at an elevated temperature
The test requirements are given in the specifications as a function of the nature of the pipe tested. These
test. allow evaluation of the standard of the production and
concerning the types of pipes under
the pipe material used.
The first type of test may be applied by the manufacturer
2 PRINCIPLE
for the continuous inspection of his products and/or by the
consumer for the acceptance of a batch of pipes.
The method consists in subjecting specified lengths of pipe
to a specified constant internai pressure for a specified
period of time, or until the test piece bursts.
test pieces are conditioned before testing, and
The
3 APPARATUS
throughout the test they are kept at a specified constant
temperature equal to the conditioning temperature. The
The essential parts of the apparatus are as follows :
tests are carried out "with water under water" (see 7.6).
NOTE -The method is based on the correlation between the
3.1 Fittings, to be mounted at the ends of the test piece.
circumferential stress exerted on the pipe and the time after which
bursting is observed.
The fittings shall be designed to make a pressure-tight
test piece and to the pressure appliance.
connection to the
Consequently, it IS based also on the shape of the circumferential
stressibursting time curve, which can be obtained by submitting a
Three types of fittings are allowed, as follows :
number of test pieces to various pressures. The shape of this curve
depends on
- the nature of the product used (PVC; PE, highdensity; PE,
3.1.1 Fittings rigidly connected to the test piece so that
low-density: etc.);
the lower end of the test piece carries the weight of one of
- the processing conditions of the material. the fittings and the thrust of the pressure (see figure la).
If the tests are performed at elevated temperature, the
circumferential stresses required to produce bursting decrease, but
3.1.2 Caps, provided with ring joints sealing onto the
the shape of the curve is maintained.
external surface of the test piece, and connected to one
At elevated temperatures, singularities in this curve - in particular, another by a metal rod allowing some longitudinal
- develop sooner. This circumstance is utilized to
points of flexion
movement at the ends of the test piece. Pressure is applied
facilitate extrapolation.
through one cap end, or through the connecting rod (see
The extrapolation, by suitable methods, of the circumferential figure lb).
stress/bursting time curve, determined at 20 "C in accordance with
this method, allows approximate
the test conditions fixed by
estimation of the maximum circumferential stress which the pipe 3.1.3 Metal plugs provided with ring joints sealing onto
can withstand, without bursting, over a reasonably long period, say
the inner surface of the test piece, and connected to one
50 years.
another by a metal rod with a central bore allowing some
this maximum circumferential stress obtained by
The ratio between longitudinal movement at the ends of the test piece (see
extrapolation and the circumferential stress to which the pipe will
figure lc).
be subjected in continuous service defines what is called a "factor of
safety", which is only applicable when water under pressure at a
temperature of 20°C is transported. It makes allowance for the
3.2 Tank filled with water at the required temperature and
service conditions of the pipe, its handling qualities, etc.
provided with a thermostat allowing the temperature to be
For applications where higher temperatures and/or higher maintained within t 1°C.
1
aggressiveness of the fluids to be transported are to be expected.
special tests can be considered. NOTE - Provision shall be made for effective stirring.
1
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IS0 1167-1973 (E)
3.3 Suitable appliance allowing the required pressure to be Test pieces shall be brought to the specified tem
...
SLOVENSKI STANDARD
SIST ISO 1167:1996
01-marec-1996
3ODVWLþQHFHYL]DWUDQVSRUWWHNRþLQ'RORþDQMHRGSRUQRVWLQDQRWUDQMLSULWLVN
Plastics pipes for the transport of fluids -- Determination of the resistance to internal
pressure
Tubes en matières plastiques pour le transport des fluides -- Détermination de la
résistance à la pression intérieure
Ta slovenski standard je istoveten z: ISO 1167:1973
ICS:
23.040.20 Cevi iz polimernih materialov Plastics pipes
SIST ISO 1167:1996 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST ISO 1167:1996
---------------------- Page: 2 ----------------------
SIST ISO 1167:1996
@ 1167
INTERNATIONAL STANDARD
‘ale
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEXnYHAPOflHAR OPTAHRSAUMR Il0 CTAHflAPTM3AUMW *ORGANISATION INTERNATIONALE DE NORMALISATION
L
Plastics pipes for the transport of fluids - Determination of
the resistance to internal pressure
First edition - 1973-12-01
UDC 621.643.33 Ref. No. IS0 1167-1973 (E)
Derriptors : pipes (tubes), plastic pipes, tests, high pressure tests, internal pressure.
Price based on 4 pages
---------------------- Page: 3 ----------------------
SIST ISO 1167:1996
FOREWORD
IS0 (the International Organization for Standardization) is a worldwide federation
of national standards institutes (IS0 Member Bodies). The work of developing
International Standards is carried out through IS0 Technical Committees. Every
Member Body interested in a subject for which a Technical Committee has been set
up 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.
Draft International Standards adopted by the Technical Committees are circulated
to the Member Bodies for approval before their acceptance as International
Standards by the IS0 Council.
Prior to 1972, the results of the work of the Technical Committees were published
as IS0 Recommendations; these documents are now in the process of being
transformed into International Standards. As part of this process, International
IS0 1167 replaces IS0 Recommendation R 1167-1970 drawn up by
Standard
Technical Committee ISO/TC 5, Pipes and fittings. Technical Committee
ISO/TC 138, Plastics pipes and fittings for the transport of fluids, set up in 1970,
took over the responsibility for this document.
The Member Bodies of the following countries approved the Recommendation :
Australia Greece Poland
Belgium India South Africa, Rep. of
Canada Ireland Spain
Chile Israel Sweden
Czechoslovakia Italy Switzerland
Denmark Japan Turkey
Egypt, Arab Rep. of Korea, Dem.P.Rep. of United Kingdom
France Netherlands
U.S.S. R.
Germany Norway Y ugosl av ia
The Member Body of the following country expressed disapproval of the
Recommendation on technical grounds :
New Zealand*
*
Subsequently, this Member Body approved the Recommendation.
O International Organization for Standardization, 1973 O
Printed in Switzerland
---------------------- Page: 4 ----------------------
SIST ISO 1167:1996
INTERNATIONAL STANDARD IS0 1167-1973 (E)
Determination of
Plastics pipes for the transport of fluids -
the resistance to internal pressure
1 SCOPE AND FIELD OF APPLICATION Two types of test are provided for
- Acceptance tests, carried out at a temperature of
This International Standard specifies the testing apparatus
and the test procedure to be applied for determining the 20 OC. These allow a fast verification of the conformity
resistance of plastics pipes to a constant internal pressure of a batch of pipes to a specified type.
and the bursting time of these pipes.
. - Quality tests, carried out at an elevated temperature
The test requirements are given in the specifications as a function of the nature of the pipe tested. These
test. allow evaluation of the standard of the production and
concerning the types of pipes under
the pipe material used.
The first type of test may be applied by the manufacturer
2 PRINCIPLE
for the continuous inspection of his products and/or by the
consumer for the acceptance of a batch of pipes.
The method consists in subjecting specified lengths of pipe
to a specified constant internai pressure for a specified
period of time, or until the test piece bursts.
test pieces are conditioned before testing, and
The
3 APPARATUS
throughout the test they are kept at a specified constant
temperature equal to the conditioning temperature. The
The essential parts of the apparatus are as follows :
tests are carried out "with water under water" (see 7.6).
NOTE -The method is based on the correlation between the
3.1 Fittings, to be mounted at the ends of the test piece.
circumferential stress exerted on the pipe and the time after which
bursting is observed.
The fittings shall be designed to make a pressure-tight
test piece and to the pressure appliance.
connection to the
Consequently, it IS based also on the shape of the circumferential
stressibursting time curve, which can be obtained by submitting a
Three types of fittings are allowed, as follows :
number of test pieces to various pressures. The shape of this curve
depends on
- the nature of the product used (PVC; PE, highdensity; PE,
3.1.1 Fittings rigidly connected to the test piece so that
low-density: etc.);
the lower end of the test piece carries the weight of one of
- the processing conditions of the material. the fittings and the thrust of the pressure (see figure la).
If the tests are performed at elevated temperature, the
circumferential stresses required to produce bursting decrease, but
3.1.2 Caps, provided with ring joints sealing onto the
the shape of the curve is maintained.
external surface of the test piece, and connected to one
At elevated temperatures, singularities in this curve - in particular, another by a metal rod allowing some longitudinal
- develop sooner. This circumstance is utilized to
points of flexion
movement at the ends of the test piece. Pressure is applied
facilitate extrapolation.
through one cap end, or through the connecting rod (see
The extrapolation, by suitable methods, of the circumferential figure lb).
stress/bursting time curve, determined at 20 "C in accordance with
this method, allows approximate
the test conditions fixed by
estimation of the maximum circumferential stress which the pipe 3.1.3 Metal plugs provided with ring joints sealing onto
can withstand, without bursting, over a reasonably long period, say
the inner surface of the test piece, and connected to one
50 years.
another by a metal rod with a central bore allowing some
this maximum circumferential stress obtained by
The ratio between longitudinal movement at the ends of the test piece (see
extrapolation and the circumferential stress to which the pipe will
figure lc).
be subjected in continuous service defines what is called a "factor of
safety", which is only applicable when water under pressure at a
temperature of 20°C is transported. It makes allowance for the
3.2 Tank filled with water at the required temperature and
service conditions of the pipe, its handling qualities, etc.
provided with a thermostat allowing the temperature to be
For applications where higher temperatures and/or higher maintained
...
NORME INTERNATIONALE
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION .MEYllYHAPOLLHAI OPrAHM3AUMR no CTAHnAPTM3AUBM .ORGANISATION INTERNATIONALE DE NORMALISATION
-
Tubes en matières plastiques pour le transport des fluides -
Determination de la résistance à la pression intérieure
Première édition - 1973-12-01
I
- U CDU 621.643.33 Réf. NO : IS0 1167-1973 (F)
m
r-
m
7
Descripteurs : tuyau, tuyau en matière plastique, essai, essai à haute température, pression intérieure.
b
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7
c
O
Prix basé sur 4 pages
f?
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AVANT-PROPOS
IS0 (Organisation Internationale de Normalisation) est une fédération mondiale
d'organismes nationaux de normalisation (Comités Membres ISO). L'élaboration de
Normes Internationales est confiée aux Comités Techniques ISO. Chaque Comité
Membre intéressé par une étude a le droit de faire partie du Comité Technique
correspondant. Les organisations internationales, gouvernementales et non
gouvernementales, en liaison avec I'ISO, participent également aux travaux.
Les Projets de Normes Internationales adoptés par les Comités Techniques sont
soumis aux Comités Membres pour approbation, avant leur acceptation comme
Normes Internationales par le Conseil de I'ISO.
Avant 1972, les résultats des travaux des Comités Techniques étaient publiés
comme Recommandation ISO; maintenant, ces documents sont en cours de
transformation en Normes Internationales. Compte tenu de cette procédure, la
Norme Internationale IS0 1167 remplace la Recommandation ISO/R 1167-1970
établie par le Comité Technique ISO/TC 5, Tuyauteries et raccords. Le Comité
Technique ISO/TC 138, Tuyauteries et raccords en matières plastiques pour le
transport des fluides, créé en 1970, a pris la responsabilité de ce document.
Les Comités Membres des pays suivants avaient approuvé la Recommandation :
Afrique du Sud, Rép. d' Espagne Pays-Bas
Al lemagne France Pologne
Australie Grèce Royaume-U ni
Belgique Inde Suède
Irlande Suisse
Canada
Chili Israël Tchécoslovaquie
Turquie
Corée, Rép. Dém.P.de Italie
U.R.S.S.
Danemark Japon
Norvège Yougoslavie
Egypte, Rép. arabe d'
Le Comité Membre du pays suivant avait désapprouvé la Recommandation pour des
raisons techniques :
Nouvel le-ZéI ande *
Ultérieurement, ce Comité Membre a approuvé la Recommandation.
O Organisation Internationale de Normalisation, 1973 O
Imprimé en Suisse
---------------------- Page: 2 ----------------------
NORME INTERNATIONALE IS0 1167-1973 (F)
Tubes en matières plastiques pour le transport des fluides -
Détermination de la resistance a la pression intérieure
1 OBJET ET DOMAINE D'APPLICATION Deux sortes d'essais sont prévus, à savoir :
- Essais de réception, effectués à la température de
La présente Norme Internationale spécifie l'appareillage et
le mode opératoire à utiliser pour déterminer la résistance 20 OC. Ces essais permettent de vérifier rapidement la
des tubes en matières plastiques à une pression intérieure
conformité d'un lot de tubes à un type donné.
constante, ainsi que le temps de rupture de ces tubes.
- Essais de qualification, effectués à une température
Les prescriptions auxquelles les tubes doivent répondre sont
élevée, en fonction de la nature du tube examiné. Ces
données par les spécifications pour les types de tubes
essais permettent de porter un jugement sur la qualité
considérés.
d'une fabrication de tubes et sur la qualité de la matière
utilisée.
2 PRINCIPE
Les premiers essais peuvent être effectués par le fabricant,
pour le contrôle courant de sa production, et/ou par le
La méthode consiste à soumettre des portions de tubes,
ciient, pour réceptionner un lot de tubes.
d'une longueur déterminée, à une pression intérieure
constante et définie, pendant un laps de temps spécifié, ou
la rupture de l'éprouvette.
jusqu'à
3 APPAREILLAGE
Les tubes sont préalablement conditionnés, puis maintenus
L'appareillage comprend essentiellement les éléments
l'essai à une température constante donnée. Les
durant tout
suivants :
essais ont lieu «à l'eau SOUS l'eau)) (voir 7.6).
3.1 Embouts, fixés aux extrémités du tube.
NOTE - Le principe de cette méthode est basé sur la corrélation
entre la contrainte transversale appliquée au tube et le temps
Les embouts doivent permettre, à l'aide d'un système
nécessaire pour observer sa rupture.
approprié, d'assurer l'étanchéité et la liaison avec le
dispositif de mise sous pression.
II est donc basé également sur la forme de la courbe contrainte
transversale/temps pour obtenir la rupture, qui peut être obtenue en
Trois types d'embouts sont admis, à savoir :
soumettant plusieurs éprouvettes à des contrainte? variées. L'aspect
:
de cette courbe dépend
3.1.1 Des raccords fixés d'une manière rigide à I'éprou-
..-
- de la nature du produit utilisé (PVC; PE, haute densité; PE,
vette de telle sorte que celle-ci supporte, à son extrémité,
basse densité; etc.);
le poids de l'un des raccords ainsi que la poussée de la
- de la mise en œuvre de la matière.
pression (voir figure la).
En pratiquant les essais à température élevée, les contraintes
transversales nécessaires pour provoquer la rupture sont diminuées
3.1.2 Des pièces femelles, munies de joints toriques
mais la forme de la courbe est conservée.
assurant l'étanchéité sur la surface externe de l'éprouvette
Les singularités de cette courbe apparaissent plus rapidement à
et reliées entre elles par une tige métallique, permettant aux
température élevées, en particulier son infléchissement, s'il s'en
extrémités de l'éprouvette de se déplacer longitudi-
produit un. Ce fait est mis a profit pour faciliter l'extrapolation.
nalement. La pression est appliquée par la pièce femelle ou
L'extrapolation, par des moyens appropriés, de la courbe contrainte
par la tige (voir figure lb).
transvenalekemps, déterminée à 20 "C suivant les conditions d'essai
fixées par cette méthode, permet d'apprécier approximativement la
3.1.3 Des pièces métalliques mâles, munies de joints
contrainte transversale maximum que le tube peut, dans ce cas,
toriques assurant l'étanchéité sur la surface interne de
supporter sans se rompre pendant un certain nombre d'années, soit
50 ans.
l'éprouvette et reliées entre elles par une tige métallique
munie d'un trou central, permettant aux extrémités de
Le rapport entre cette contrainte transversale maximale obtenue par
l'éprouvette de se déplacer longitudinalement (voir
extrapolation, et la contrainte transversale prévue pour un service
continu, définit un ((coefficient de sécurité)) qui, par conséquent,
figure ïc).
n'est valable que dans le cas du transport de l'eau sous pression A
une température de 20°C. Ce coefficient tient compte des
3.2 Bac, rempli d'eau, pouvant être maintenu, à 1 "C
conditions d'utilisation du tube, de ses propriétés d'emploi, etc.).
près, à la température prescrite, au moyen d'un
Dans les applications où interviennent, par exemple, des
thermorégulateur.
plus élevées et/ou une agressivité plus haute du fluide
températures
NOTE - Une agitation efficace doit être prévue.
véhiculé, des essais spécifiques peuvent être envisagés.
1
---------------------- Page: 3 ----------------------
IS0 1167-1973 (FI
3.3 Dispositif approprié, permettant d'appliquer Les éprouvettes doivent être soumises à la température
progressivement et sans à-coups la pression requise et de la spécifiée, et conditionnées à cette température durant 1 h.
mainte
...
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