© ISO 2017 Plastics piping systems for hot and cold water installations — Polybutene (PB) — Part 5 Fitness for purpose of the system Systèmes de canalisations en plastique pour les installations d’eau[.]
Trang 1Plastics piping systems for hot
Part 5:
S stème s de ca alisations en plastique p ur les ins talations d’ea
ch ude et froide — Poly utène (PB ) —
Partie 5: Aptitude à l’emploi du système
S con edition
2 17-0
Refer ence n mb r
ISO 1 87 -5:2 17(E)
Trang 2COPYRIGHT PROTECTED DOCUMENT
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Trang 3F reword i v
Introduction v
1 Sc ope 1
2 Nor mati ve r eferenc es 1
3 Terms an definitions, symbols and abbreviated terms 2
4 Fitnes for purpose of the joints and the piping system 2
4.1 General 2
4.2 Inte nal pr es ure tes 2
4.3 Bending tes 4
4.4 Pul-out es 5
4.5 The mal cyclng tes 5
4.6 Pr es ur e cycl ng tes 6
4.7 Leaktightnes u de v cu m 7
Biblog raphy 8
Trang 4ISO (he Int ernational Org nization for Stan ardization) is a worldwidefede ation of national s an ards
b dies (ISO membe b dies) The work of pr p ring Int ernational Stan ards is normaly car ied out
through ISO t ech ical committ ees Each membe b dy int er st ed in a subje t for w hich a t ech ical
committ ee has be n es a lshed has the right t o be r pr sent ed on that committ ee Int ernational
org nizations, g ove nmental an non-g ove nmental, in laison with ISO, also take part in the work
ISO cola orat es closely with the Int ernational Ele trot ech ical C mmis ion (IEC) on al matt ers of
ele trot ech ical s an ardization
The proc d r s used t o develo this document an those int en ed for it furthe maint enanc ar
desc ibed in the ISO/IEC Dir ctives, Part 1 In p rticular the dife ent a pro al c it eria ne ded for the
dife ent ty es of ISO document should be not ed This document was draft ed in ac ordanc with the
edit orial rules of the ISO/IEC Dir ctives, Part 2 ( e www iso org dir ctives)
A tt ention is drawn t o the p s ibi ity that some of the element of this document ma be the subje t of
p t ent right ISO shal not be held r sponsible for identifying any or al such p t ent right Detais of
any p t ent right identified d ring the develo ment of the document wi be in the Introd ction an / r
on the ISO ls of p t ent de larations r c ived ( e www iso org p t ent )
Any trade name used in this document is information given for the convenienc of use s an does not
cons itut e an en orsement
For an ex lanation on the meaning of ISO spe ific terms an ex r s ions r lat ed to conformity as es ment,
as wel as information a out ISO’s adhe enc to the Wor ld Trade Org nization (WTO) principles in the
Te h ical Bar ie s to Trade (TBT) se the folowing URL: www iso org iso/ for word html
ISO 1 876-5 was pr p r d b the E ro ean C mmitt ee Stan ardization (CEN) Te hnical C mmitt ee
CEN /TC 1 5, Plas tic s pipin s sys tems a d duc tin sys tems , in col a oration with ISO Te h ical C mmitt ee
ISO/TC 1 8, Plas tic s pipes , fit in s a d v lves fr the tra s port o fluids , Subcommitt ee SC 2, Plas tic s pipes
a d fit in s fr wate s up les , in ac ordanc with the Agr ement on t ech ical co pe ation betwe n ISO
an CEN(Vien a Agr ement)
This se on edition canc ls an r plac s the firs edition (ISO 1 876-5:2 0 ), w hich has be n
t ech icaly r vised with the folowing chang es:
— introd ction of poly but ene ran om co olyme (P -R) an r naming exis ing p ly but ene (P ) int o
poly but ene homo olyme (P -H);
— r vision of spe if ications for con itioning of samples
A l s of al p rt in theISO 1 876 se ies can be foun on the ISO websit e
Trang 5The Sy st em Stan ard ISO 1 876, of w hich this document is Part 5, spe if ies the r q ir ment for a
piping sy st em w hen made from poly ut ene (P ) The piping sy st em is int en ed t o be used for hot an
cold wat er ins alations
In r spe t of p t ential adve se efe t on the q alty of wat er int en ed for h man consumption, caused
b the prod ct co e ed b ISO 1 876 (al p rt ):
— ISO 1 876 (al p rt ) pro ides no information as t o w hethe the prod ct ma be used without
r s riction in any of the Membe Stat es of the EU or EFTA;
— it should be not ed that, w hie awaiting the ado tion of ve if ia le E ro ean c it eria, exis ing national
r gulations conc rning the use an / r the charact eris ics of thisprod ct r main in for e
R eq ir ment an t es methods for mat erial an comp nent of the piping sy st em ar spe ified
in ISO 1 87 6-1, ISO 1 876- 2 an ISO 1 876-3 ISO/TS 1 876-7 gives guidanc for the as es ment of
conformity
This document pe ifies the charact eris ics of f itnes for purp se of the piping sy st ems
A t the dat e of publcation of this s an ard, Sy st em Stan ards for piping sy st ems of othe plas ics
mat erials used for the same a plcation inclu e ISO 1 8 4, ISO 1 8 5, ISO 1 87 6, ISO 1 8 7, ISO 2 00
an ISO 2 3 1
Trang 7Plastics piping systems for hot and c old water
Part 5:
This document spe if ies the charact eris ics of the f itnes for purpose of p ly but ene-1 (P -1) piping
sy st ems, int en ed t o be used for hot and cold wat er ins alations within bui dingsfor the convey nc of
wat er, w hethe or not int en ed for h man consumption, (domes ic sy st ems) an for heating sy st ems,
un e design pr s ur s an t empe atur s ac ording t o the clas of a plcation ( e ISO 1 876-1)
The designation poly ut ene is used t og ethe with the a br viation P throughout his document
This document co e s a rang eof se vic con itions (a plcation clas es) an design pr s ur clas es F or
v alues of T
D
, T
a
al
in exces of those in ISO 1 876-1:2 1 , Ta le 1, this document does not a ply
NOTE It is the responsibility of the p r haser or specif ier t o make the ap ropriat e selections from these
aspects, taking int o ac ou t their particular req irements an an relevant national re ulations an instalation
practices or codes
It also spe ifies the t es p ramet ers for the t es methods r fe r d t o in this document
In conju ction with the othe p rt of ISO 1 876, it is a plca le t o PB pipes, f it ings, their joint an t o
joint with comp nent of othe plas ics an non-plas ics mat erials int en ed t o be used for hot and cold
wat er ins alations
2 Normati ve r eferences
The folowing document ar r fe r d t o in the t ext in such a wa that some or al of their cont ent
cons itut es r q ir ment of this document F or dat ed r fe enc s, only the edition cit ed a ples F or
un at ed r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment ) a ples
ISO 1 67-1, The mo las tic s pipes, fit in s a d as s embles fr the c on ey nc e o fluids — Dete min tio o
the r s i s ta c e to inte n l pr s s ur — Part 1: G ene al meth d
ISO 1 67- 2, The mo las tic s pipes, fit in s a d as s embles fr the c on ey nc e o fluids — Dete min tio o
the r s i s ta c e to inte n l pr s s ur — Part 2 : Prep ration o pipe tes t piec es
ISO 1 6 -3, The mo las tic s pipes , fit in s a d as s embles fr the c on ey nce o fluids — Dete min tio o
the r s i s ta c e to inte n l pr s s ur — Part 3: Prep ratio o c omp nent
ISO 1 6 -4, The mo las tic s pipes, fit in s a d as s embles fr the c on ey nc e o fluids — Determin tio o
the r s i s ta c e to inte n l pr s s ur — Part 4: Prep ratio o as semblies
ISO 3 0 , Plas tic s pipin sys tems — Mecha ic al joints bet we n fit in s a d pr s s ur pipes — Tes t meth d
fr r s i s ta c e to p l o t u de c ons ta t lo gitudin l frc e
ISO 3 0 , Plas tic s pipin sys tems — Mecha ic al joints bet we n fittin s a d pr s s ur pipes — Tes t meth d
fr leaktig tnes s u de inte n l pr s s ur o as s embles s ubjec ted to bendin
ISO 1 0 6, Plas tic s pipin sys tems — Pres s ur sys tems fr h t a d c old wate — Tes t meth d fr
leaktig tnes s u de v c uum
Trang 8ISO 1 8 6-1, Plas tic s pipin sys te ms fr h t a d cold wate r ins talatio s — Poly ute ne (PB) — Part 1: Ge ne ral
ISO 1 8 2, Plas tic s pipin sys tems — The mo las tic s pipes a d fit in s fr h t a d c old wate — Tes t
meth d fr the r s i s ta ce o joints to pr s s ur cyclin
ISO 1 8 3, Plas tic s pipin sys tems — The mo las tic s pipes a d fittin s fr h t a d c old wate — Tes t
meth d fr the r s i s ta ce o mo nted as s embles to tempe atur cyclin
3 Terms and definitions, symbols and abbreviated terms
F or the purposes of this document, the t erms and def initions, symb ls an a br viat ed t erms given in
ISO 1 876-1a ply
ISO an IEC maintain t erminolo ical data ases for use in s an ardization at the folowing ad r s es:
— IECEle tro edia: a aia le at ht p:/ www ele tro edia org
— ISO Onlnebrow sing plat orm:a ai a le at ht p:/ www iso org o p
4 Fitnes for purpose ofthe joints and the piping system
Int en ed combinations of mat erials of pipes an f it ings, e.g P -R pipes an P -H fit ings, shal fulfil
the cor esp n ing r q ir ment of the pipe mat erials
When t est ed in ac ordanc with the a plca le t es methods as spe if ied in Ta le 1, using the in icat ed
p ramet ers given in 4.2 t o 4.7, as a plca le, the combinations of P ty es for pipes an fit ings shal
ha e charact eris icsconforming t o the r q ir ment of the pipes given in the a plca le cla uses
For the tes s desc ibed, the fit ings shal be con e ted to the pipe with which they ar inten ed to be used
Ta le 1 spe ifies the t es s a plca le for each dife ent ty e ofjointing syst em co e ed b this document
Table 1 — Joint tests
Tes
Jointing sy st em
a
Internalpres ure t est Y Y Y Shal conform t o 4.2 ISO 1 67-1, ISO 1 67-2,
ISO 1 67-3an ISO 1 67-4
a
SW — S ck et w elded joint
E — Ele t o-fusion joint
M — Me hanic l joint
Y — Denotes tes ap lc ble
N — Denotes tes not ap lc ble
4.2 Internal pres ur e test
When t est ed in ac ordanc with ISO 1 67-1, ISO 1 6 - 2, ISO 1 6 -3 an ISO 1 6 -4 using the t es
p ramet ers given in Ta le 2or Ta le 3 for the r lev nt clas es, the joint as embles shal not leak
Trang 9The t es pr s ur , p
J for a given timet o faiur an t es t empe atur shal be det ermined b F ormula (1):
P
DP
σ
σ
(1)
w he e
p
J
is the hy dros atic tes pr s ur , in bars, to be a pled to the joint as embly d ring the
tes pe iod;
σ
P
is the hydros atic s r s v lue, in meg p scals, for the pipe mat erial cor esp n ing t o time
t o fai ure /t es tempe atur p int given in Ta le 2or Ta le 3;
σ
DP
is the design s r s v lue, in meg p scals, for the pipe mat erial as det ermined for each clas
an lst ed in ISO 1 87 6- 2;
p is the design pr s ur of 4 b r, 6 b r, 8 b r or 1 b r, asa plca le
NOTE 1 b r = 1
5
N/m 2
= 0,1MPa
Table 2 — Derivatio of t est pres ure, p
J for PB-H
Ap lcation
Ma imum design temperature, T
a
Design stres of pipe material, σ
DP
Test temperature
a
, T
te t
Hydrostatic stres of pipe material,σ
P
Test pres ure, p
J , in b r ,
for a design pres ure, p , of:
b
5,5 b
7,7 b
5,6
a
Generaly, the hig es tes temperature is tak en to be (T
a + 10) °C with an u per lmit of 95 °C However, to match
e is in tes fa i ties, the hig es tes temperature for clas es 1 an 2 is alsoset at 95 °C The hydros atic s res es given
c r espon tothe given tes temperatures
b
The 20 °C, 10 bar, 50 year , c ld water req irement, bein hig er, determines this value (e ISO 1 87 6-1)
Trang 10Table 3 — Derivatio of test pres ure, p
J for P -R
Ap lcation
Ma imum design temperature, T
a
Design stres of pipe material, σ
DP
Test emperature
a
, T
te t
Hydrostatic stres of pipe material,σ
P
Test pres ure, p
J , in b r ,
for a design pres ure, p , of:
b
4,5 b
a
Generaly, the hig es tes temperature is tak en to be (T
a + 10) °C with an u per lmit of 95 °C How ever to match
e is in tes fa i ties the hig es tes temperature for clas es 1an 2 is also set at 95°C The hydros atic s res es given
c r espon tothe given tes temperatures
b
The 20 °C, 10 bar, 50 year , c ld water req irement, bein hig er, determines this value (e ISO 1 8 6-1)
In spe ial cir ums anc s if joint t es s ac ording t o this subclause cause leaks r sulting from dife ential
elong tion in uc d deformations, a t es pr s ur ma be det ermined from the s r s and c e p data
(r lative t o a design pe iod of 5 years) for the dife ent mat erials used
4.3 Bending test
When t est ed in ac ordanc with ISO 3 0 t o the a plca le pr s ur for the 2 °C, 1 h con ition given in
Ta le 4 or Ta le 5, as a plca le, using a ben ing radiuseq al t o the minimum radius of ben ing for the
pipes as r commen ed b the sy st em sup le , thejoint as embly shal not leak
This t es is only a plca le t o pipes that ar de lar d asben a le b the sy st em sup le
Table 4 — Test parameter for bending test of PB-H
Ap lcation clas
Ma imum design temperature, T
a
Design stres of pipe material, σ
DP
Test emperature, T
te t
Hydrostatic stres of pipe material,σ
P
Test pres ure, p
J , in b r ,
for a design pres ure, p , of:
a
14,3 a
14,3 a
14,5
a
The 20 °C, 10 bar, 50 year , c ld water req irement, bein hig er, determines this value (e ISO 1 8 6-1)
Trang 11Table 5 — Test parameter for bending test of PB-R
Ap l cation clas
Ma imum design temperature, T
a
Design stres of pipe material, σ
DP
Test temperature, T
te t
Hydrostatic stres of pipe material,σ
P
Test pres ure, p
J , in b r ,
for a design pres ure, p , of:
a
14,1 a
a
The 20 °C, 10 bar, 50 year , c ld water req irement, bein hig er, determines this value (e ISO 1 87 6-1)
4.4 Pul -out test
When t est ed in ac ordanc with ISO 3 0 using the p ramet ers given in Ta le 6, the joint as embles
shal withs an the pul-out for e, without being sep rat ed
The for e, F, shal be calculat ed from F rmula (2):
n
p
π
4
2
D
(2)
w he e:
F is the for e, ex r s ed in newt ons (N);
d
n
is the nominal out ide diamet er of the pipe, ex r s ed in mi lmetr s (mm);
p
is the design pr s ur of 4 b r, 6 b r, 8 b r or 1 b r, as a plca le, ex r s ed in meg p scals
[in thecase of the clas ification “Al clas es” , the design pr s ur shal be 1 bar, ex r s ed in
meg p scals (MPa)]
Table 6 — Test parameter for p l -o t test
Al a plcation
clas es
Ap l cation clas
Ma imum design temperature, T
a ,
in °C
4.5 Ther mal cycl ng test
When t est ed in ac ordanc with ISO 1 8 3 using the p ramet ers given in Ta le 7, the pipes, f it ings or
joint , as a plca le, shal withs an the t es without leakag e
Trang 12The t es for flexible pipes shal only be used w hen the man factur r de lar s that the pipe can be
bent t o the configuration shown The ben ing radius shal not be smale than the minimum de lar d
ben ing radius In al othe cases, the t es for rigid pipes shal a ply
Table 7 — Test parameter for thermal cycl ng
Ap lcation clas
Ma imum design temperature, T
a
Numb r of test pieces
One set of f it ings in ac ordance with the conf iguration shown
in ISO 1 8 3
a
Ea h cycle shal c mprise 1
+ 1
0 min at he hig es tes temperature an 1
+ 1
0 min at the lowes (i.e the d ration of
one cycle is 30
+ 2
0 min)
The t ensie s r s , σ
t , used t o calculat e the pr -s r s for e r q ir d in ISO 1 89 shal be calculat ed
b sed on E-mod lus v alues o tained for given grades of P -H an P -R Ty ical v lues ar as folow s:
— P -H:45 MPa;
— P -R: 3 0 MPa
NOTE T e tensile stres can b calculated using Formula (3):
t
w he e
σ
t
is the t ensi e s r s , ex r s ed in meg p scals (MPa);
α is the coeff icient of the mal ex ansion ex r s ed in r ciprocal kelvins (1 K);
ΔT is the t empe atur dife enc , ex r s ed in kelvins (K);
E is the mod lus of elas icity, ex r s ed in meg pascals (MPa)
In this document, the fol owing v lues a ply:
a) α = 1,3 × 1
−4
K
−
;
b) Δ T = 2 K;
c) E =t o be o tained for given gradeof PB-H and P -R
4.6 Pres ure cycl ng test
When t est ed for leak tightnes u de pr s ur cyclng in ac ordanc with ISO 1 8 2 using the
p ramet ers given in Ta le 8, the pipes, f it ings or joint , as a plca le, shal not leak