Tiêu chuẩn iso 15876 2 2017

© ISO 2017 Plastics piping systems for hot and cold water installations — Polybutene (PB) — Part 2 Pipes Systèmes de canalisations en plastique pour les installations d’eau chaude et froide — Polybutè[.]

Plastics piping systems for hot

Part 2:

S stème s de ca alisations en plastique p ur les ins talations d’ea

ch ude et froide — Poly utène (PB ) —

COPYRIGHT PROTECTED DOCUMENT

© ISO 2017, P blshed in Sw itz rlan

A ll rig hts r eserved Unles otherw ise spe ified, nopar of this p blc tion ma y be r epr od c d or utilz d otherw ise in an form

or b an me ns, ele tr onic or me hanic l, inclu in p oto opying , or postin on the internet or an intranet , w ithout prior

written permis ion Permis ion c n be req esed from either ISO at the ad r es below or ISO’s member bod y in the c u try of

F 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 Pipe mater ial 2

4.1 General 2

4.2 Ev luation of σ L L -curves 2

4.3 Influenc on wate inten ed for h man consumption 5

5 General characteristic 6

5.1 A ppearanc 6

5.2 Op city 6

6 Geometrical character istic 6

6.1 General 6

6.2 Dimensions of pipes 7

6.2.1 Outside diamete s 7

6.2.2 Wal thick es es an their toleranc s 7

7 Mechanical character istic 10

8 Physical and chemical characteristic 10

9 Perfor manc e requir ements 11

10 Mar king 11

1 1 General r eq ir ements 1

1 2 Minimum r eq ir ed mar king 1

A nne x A (normative) Der i vatio of S calc,ma .13

Biblog raphy 16

ISO (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 87 6- 2 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 sys tems a d duc tin sys tems , in cola oration with ISO Te hnical 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 f irs edition (ISO 1 876- 2:2 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

It also incorporat esthe Amen ment ISO 1 876- 2:2 0 /Amd 1:2 0

A l s of al p rt in theISO 1 876 se ies can be foun on the ISO websit e

The Sy st em Stan ard ISO 1 87 6, of w hich this document is Part 2, 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 , othe than pipes, ar spe ified in

ISO 1 876-1 an ISO 1 876-3 Charact eris ics for fitnes for purp se (mainly for joint ) ar co e ed in

ISO 1 87 6-5 ISO/TS 1 876-7 gives guidanc for the as es ment of conformity

This document pe ifies the charact eris ics of pipes

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

Plastics piping systems for hot and c old water

Part 2:

This document spe if ies the charact eris ics of pipesfor p ly ut ene-1 (P -1) piping sy st ems int en ed t o

be used for hot and cold wat er ins alations within buidings for 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 a pro riat e 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 e of se vic con itions (a plcation clas es), design pr s ur s an pipe

dimension clas es F or v lues of T

D, T

NOTE 1 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 part of ISO 1 876, this document is a plca le t o P pipes, their joint

an t o joint with comp nent of P , othe plas ics an non-plas ics mat erials int en ed t o be used for

hot an cold wat er ins alations

It isa plca le t o pipes with or without (a)b r ie la e ()

NOTE 2 In the case of plastic pipes provided with a thin b r ier layer, e.g t o prevent or gre tly diminish the

dif usion of g ses an the transmis ion of light into or through the pipe wal , the design stres req irements are

t otal y met by the b se polymer (P )

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 3 -1, Plas tic s — Dete min tio o the melt mas s-flow rate (MF ) a d melt v lume-flow rate (MVR)

o the mo las tic s — Part 1: Sta dard meth d

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 2 0 , The mo las tic s pipes — L n itudin l r ve s ion — Tes t meth d a d p ramete s

ISO 3 2 , Plas tic s pipin sys tems — Plas tic s c omp nent — Dete min tio o dimens io s

ISO 768 , Plas tic s pipes a d fit in s — Dete min tio o o ac it y

ISO 9 8 , Plas tic s pipin a d duc tin sys tems — Dete min tion o the lo g-te m h dros tatic s tr n th o

the mo las tic s mate ials in pipe f rm b ex tra olation

ISO 1 87 6-1:2 0 , Plas tics pipin sys tems fr h t a d c old wate ins talatio s — Pol yb tene (PB) —

Part 1: G ene al

ISO 1 876-3, Plas tic s pipin sys tems fr h t a d c old wate ins talatio s — Polyb tene (PB) — Part 3 :

Fit in s

ISO 1 876-5, Plas tic s pipin sys tems fr h t a d c old wate ins talatio s — Polyb tene (PB) —Part 5:

Fitnes s fr p rp se o the sys tem

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 Pipe material

The pipe mat erial from w hich the pipe is made shal comply with ISO 1 876-1

Aft er extrusion or moulding, P u de g oes a c y stal ne phase transition (usualy caled ag eing) befor

it develo s it f inal pro e ties The minimum r q ir d transition time depen s on t empe atur an

prod ct charact eris ics The same f inal mat erial pe formanc iso tained onc completion of c ys al ine

phase transition is achieved, ir espe tive of transition con itions F or q al ty control purp ses,

the efor , t es spe imens shal be taken immediat ely aft er proc s ing an be con itioned in ac ordanc

with r commen ations o tained from the compoun sup le prior t o t es ing

The c y stal ine phase transition is depen ent on time an t empe atur F or guidanc a minimum time

of f ive day s for P -H an one da for P -R should be alowed at 2 °C, u les ac ele at ed ag eing is

pe formed

NOTE The c ystal ine p ase transition can b considera ly ac elerated u on ap lying higher hydrostatic

pres ure of ap ro 1kb r t o 2kb r Ac elerated a eing at higher pres ure can b ac epted if t est results can b

proven reprod cible an eq al t o those o tained at atmosp eric pres ure

Be ause of the slow c y stal zation, trans ormation an shrinkag e w hich takes plac s aft er P -H an

P -R plas ics ar co led from the melt, phy sical t es ing should be dela ed aft er extrusion or moulding

unti this morpholo ical transition is complet e

4.2 Evaluation of σ

LPL-cur ves

The pipe mat erial shal be ev luat ed in ac ordanc with ISO 9 8 or eq iv lent w he e int ernal pr s ur

t es s ar made in ac ordanc with ISO 1 6 -1 an ISO 1 6 - 2 t o fin the σ

L L-v lues The σ

L L-v lue

th s det ermined shal at leas be as high as the cor esp n ing v lues of the r fe enc curves given in

Figur 1 or Figur 2

NOTE One eq ivalent way of evaluation is to calculate the σ

L L-value for e ch t emperature (e.g 2 °C, 60°C

t o 70 °C an 9 °C)in ivid aly

The r fe enc curves in Figur 1 in thet empe atur rang e of 1 °C t o 1 0 °C for P -H an in Figur 2 in

the t empe atur rang e of 1 °Ct o 9 °Cfor PB-R ar de ived from the folowing formulae:

Firs branch ( i.e the lef-hand portion of the lnes asshown in Figur 1 an Figur 2)

for P -H:

lo

lg

lot

,

,σ

,σ

,σ

To demons rat e conformanc t o the r fe enc lnes, pipe samples shal be t est ed at folowing

t empe atur s an at v rious ho p s r s es such that, at each of the t empe atur s given, at leas thr e

faiur times fal in each of the folowing time int erv ls:

— t empe atur s 2 °C; 6 °C t o 7 °C; 9 °C;

— time int erv ls 1 h t o 1 0 h, 1 0 h t o 1 00 h, 1 0 0 h t o 8 760 h an a o e 8 760 h

In t es s las ing mor than 8 7 60 h, onc faiur is r ached at a s r s an time at leas on or a o e the

r fe enc l ne, any time aft er that ma be conside ed as the faiur time Tes ing should be car ied out

in ac ordanc with ISO 1 6 -1 an ISO 1 6 - 2

Conformanc with the r fe enc l nes should be demons rat ed b plot ing the in ivid al ex e imental

r sult on the gra h A t leas 9 ,5% of them should le on or a o e the r fe enc l ne

Figure 2 — Reference curves for ex ected strength of poly butene random co olymer (PB-R)

4.3 Influenc e on water intended for human c onsumption

The mat erial shal conform t o ISO 1 87 6-1

5 General characteristics

5.1 A ppe ranc e

When viewed without ma nification, the int ernal an ext ernal surfac s of pipes shal be smo th, clean

an fr e from scoring, ca ities, an othe surfac defe t t o an ext ent that would pr vent conformity t o

this document The mat erial shal not contain visible impurities Sl ght v riations in the a pearanc of

the colour shal be pe mitt ed The en s of the pipe shal be cut cleanly and sq ar t o the a is of the pipe

5.2 Opacity

Poly ut ene pipes that ar de lar d t o be o aq e shal not transmit mor than 0,2 % of visible l ght,

w hen t est ed in ac ordanc with ISO 7686

6 Geometr ical characteristics

Dimensions shal be measur d in ac ordanc with ISO 3 2

The ma imum calculat ed pipe v lue, S

calc,ma, for the a plca le clas of se vic con ition an design

pr s ur , p , is given in Ta le 1 an Ta le 2 for P -Han PB-R, r spe tively

9,5

7,1

5,7

1 ,9b

8,4

6,3

5,0

1 ,9b

9,1

6,8

5,4

1 , 9b

Table 2 — S

calc,ma-v alues for PB-R

8,6

6,4

5,1

1 , 9 b

is provided in An e A T e method des rib d takes ac ou t of the

properties of P u der the service con itions of diferent clas es given in ISO 1 87 6-1

The v lues of out ide diamet er an / r wal thick es a ply t o the p ly but ene pipe and ar ex clusive

of ad itional out ide la e s F or pipes with b r ie la e s, the v lues of out ide diamet er an wal

thicknes ma a ply t o the finished prod ct, inclu ing the bar ie layer, pro ided that the thick es of

the out ide b r ie la e , inclu ing any adhesive la e , is ≤ ,4 mm an the design calculation using the

v lues of out ide diamet er an wal thick es of base pipe (P ) me t the S

calc,ma

v lues ac ording t o

Ta le 1 or Ta le 2

The man factur r shal s at e the dimensions an t ole anc s of the b se pipe in his documentation

w hen dife ent from Ta les 3 t o 7

Pipes with non-cir ular c os se tion ar pe mitt ed if they conform t o the r q ir ment of this

Ta le 3, Ta le 4, Ta le 5 or Ta le 6, as a plca le

6.2.2 Wal thicknes es and their toleranc es

F or any p rticular clas of se vic con ition, design pr s ur an nominal siz , the minimum wal

F or the a plca le pipe dimension clas , the wal thicknes of the base pipe or f inished pipe ( e 6.1),

shal conform t o Ta le 3, Ta le 4, Ta le 5 or Ta le 6, as a plca le, in r lation t o the pipe se ies S an