Tiêu chuẩn iso 15876 1 2017

© ISO 2017 Plastics piping systems for hot and cold water installations — Polybutene (PB) — Part 1 General Systèmes de canalisations en plastique pour les installations d’eau chaude et froide — Polybu[.]

Plastics piping systems for hot

and cold water inst al ations —

Part 1:

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

ch ude et froide — Poly utène (PB ) —

Partie 1: G én ralités

S con edition

2 17-0

Refer ence n mb r

COPYRIGHT PROTECTED DOCUMENT

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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 1

3.1 Te msan definitions 2

3.2 Symb ls 5

3.3 A bbreviated te ms 6

4 Clas ification of servic e c onditio s 6

5 Material 7

5.1 General 7

5.2 Influenc on wate inten ed for h man consumption 8

5.3 Crystal sation 8

5.4 Reproc s a le mate ial 8

6 System perfor manc e req ir ements 8

Biblog raphy 9

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 1 876-1 was pr p r d b the Euro ean Committ ee Standardization (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 sthe f irs edition (ISO 1 87 6-1:2 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 1 876-1:2 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 1 876, of w hich this document is Part 1, 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 ems ar spe if ied in

ISO 1 87 6- 2 an ISO 1 876-3 Charact eris ics for fitnes for purpose (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 g ene al aspe t of the plas ics piping sy st em

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 1:

This document spe if ies the g ene al aspe t of p ly ut ene-1 (P -1) piping sy st ems int en ed t o be

used for hot an 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, u de design pr s ur s

an t empe atur s ac ording t o the clas of a plcation ( e Ta le 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 pl cation clas es) an design pr s ur an pipe

dimension clas es Values of T

D , T

a

al

in ex ces of those in Ta le 1 do 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 87 6, this document is a plca le t o P pipes, f it ings, their

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

hot an 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 47 , Plas tic s — Voc ab lary

ISO 1 43-1, Plas tic s — Sy mb l s a d a br v iated te ms — Part 1: B as ic p ly me s a d their s pec ial

charac te i s tic s

ISO 1 87 6- 2, Plas tic s pipin sys temfr h t a d c old wate ins talatio s — Polyb tene (PB) — Part 2 : Pipes

ISO 1 876-3, Plas tic s pipin sys tem 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 tem fr h t a d c old wate ins talatio s — Polyb tene (PB) — Part 5:

Fitnes s fr p rp s e 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 47 an ISO 1 43-1 an the folowing a 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

3.1 Terms and definitions

3.1.1 Geometr ical ter ms and definitio s

3.1.1.1

nominal size

DN

n me ical designation of the siz of a comp nent, w hich is a convenient rou d n mbe , a pro imat ely

eq al t o the man facturing dimensions in mi imetr s (mm)

3.1.1.2

nominal size

DN/OD

nominal siz , r lat ed t o out ide diamet er

3.1.1.3

nominal o tside diameter

d

n

spe ified diamet er, in mi lmetr s, as igned t o a nominal siz DN /OD

3.1.1.4

o tside diameter (at any point)

d

e

measur d out ide diamet er through the c os -se tion at any p int of a pipe or spig ot en of a fit ing,

rou ded upt o the near s 0,1 mm

3.1.1.5

me n outside diameter

d

em

measur d length of the out er cir umfe enc of a pipe or spig ot en of a f it ing in any c os se tion

divided b π(≈3,142) roun ed up t o the near s 0,1 mm

3.1.1.6

minimum me n o tside diameter

d

em,min

minimum v lue of the mean out ide diamet er as spe if ied for a given nominal siz

3.1.1.7

maximum me n o tside diameter

d

em,ma

ma imum v lue of themean out ide diamet er as spe ified for a given nominal siz

3.1.1.8

me n inside diameter of socket

d

sm

arithmetical mean of two measur d inside diamet ers pe pen icular t o each othe at he midp int of the

socket length

3.1.1 9

out-of-roundnes

o alty

dife enc betwe n the measur d ma imum out ide diamet er an the measur d minimum out ide

diamet er in the same c os -se tional plane of a pipe or spig ot en of a f it ing, or thedife enc betwe n

the measur d ma imum inside diamet er and the measur d minimum inside diamet er in the same

c os -se tional plane of a socket

3.1.1.1

nominal wal thicknes

e

n me ical designation of the wal thick es of a component, a pro imat ely eq al t o the man facturing

dimension in mi lmetr s (mm)

3.1.1.1

wal thicknes (at any point)

e

measur d wal thick es at any p int aroun the cir umfe enc of a comp nent, rou ded up t o the

near s 0,1 mm

3.1.1.12

minimum wal thicknes (at any point)

e

min

minimum wal thick es at any p int arou d the cir umfe enc of a comp nent, asspe ified

3.1.1.13

maximum wal thicknes (at any p int)

e

ma

ma imum wal thick es at any p int arou d the cir umfe enc of a comp nent, as spe if ied

3.1.1.1

tolerance

pe mitt ed v riation of the spe ified v lue of a q antity ex r s ed as the dife enc between the

pe mitt ed ma imum an pe mitt ed minimum v lue

3.1.1.15

pipe series

S

dimensionles n mbe for pipe designation conforming t o ISO 40 5

Note 1t o entry: A ccording to ISO 1 87 6 (al parts), the pipe series S is used as a me ns for selecting pipe sizes for

practical p rposes (se ISO 1 87 6-2)

3.1.1.1

calculated pipe value

S

calc

v alue for a spe ific pipe calculated ac ording to the folowing eq ation, rou ded up to the near s 0,1 mm:

S

e calc

n

=

-

2

w he e

d

n

is thenominal out ide diamet er, in mi lmetr s;

e is thenominal wal thick es , ex r s ed in mi imetr s

3.1.2 Ter ms and definitio s related to servic e c onditions

design pres ure

p

highes pr s ur r lat ed t o the cir ums anc s for w hich the sy st em has be n designed an is int en ed

t o be used

Not e 1t oentry: T e design pres ure (p )is eq al t othe ma imum design pres ure (MDP), as specified in EN 8 6-1

3.1.2.2

hy rostatic stres

σ

s r s , ex r s ed in meg p scals, in uc d in the wal of a pipe w hen a pr s ur is a pled using wat er

as a medium

Not e 1t o entry: Hydrostatic stres is calculated using the folowing ap ro imate formula:

σ

2

min

= p ×

e

where

p is the ap lied pres ure, in me apas als;

d

em

is the me n outside diameter of the pipe, in mil imetres;

e

min

is the minimum wal thick es , in milimetres

3.1.2.3

design temperature

T

D

t empe atur or a combination of t empe atur s of the conveyed wat er depen ent on the se vic

con itions for w hich the sy st em hasbe n designed

3.1.2.4

maximum design temperature

T

a

highes design t empe atur , T

D , oc ur ing for short pe iods only

3.1.2.5

malfunctio temperature

T

al

highes t empe atur that can be r ached w hen the control lmit ar ex ce ded

3.1.2.6

cold water temperature

T

cold

t empe atur of conveyed cold wat er of up t o a pro imat ely 2 °C

Not e 1t o entry: For design p rposes, 2 °C is used

3.1.2.7

tre ted water for he ting instalatio s

wat er, int en ed for heating ins al ations, w hich contains ad itives w hich ha e no detrimental efe t on

the sy st em

3.1.3 Ter ms and definitio s related to mater ial characteristic

3.1.3.1

lower co fidence l mit of the predicted hy rostatic strength

σ

L L

q antity, in meg p scals (MPa), with the dimensions of s r s , w hich r pr sent the 9 ,5 % lower

conf idenc lmit of thepr dict ed hydros atic s r ngth at he given t empe atur , T, an time, t

design stres

σ

D

alowa le s r s , in meg p scals (MPa) in the pipe mat erial, σ

DP , or in the plas ics fit ing mat erial, σ

DF ,

for a given a plcation or set of se vic con itions, r spe tively

Note 1t o entry: S e also ISO 1 87 6-2:2 16, An e A

3.1.3.3

o eral service (design) coef icient

C

o e al coefficient with a v lue gr at er than one, w hich takes int o conside ation se vic con itions

as wel as pro e ties of the comp nent of a piping sy st em othe than those r pr sent ed in the lowe

conf idenc lmit of thepr dict ed hydros atic s r ngth, σ

L L

3.1.3.4

own reproces able material

mat erial pr p r d from r je t ed un sed pipes an fit ings, inclu ing trimmings from the prod ction

of pipes an f it ings, that wi be r proc s ed in a man factur r’s plant aft er ha ing be n pr viously

proc s ed b the same man factur r b a proc s such as moulding or extrusion an for w hich the

complet e formulation or mat erial spe if ication is k own

3.1.3.5

pipes with bar ie layer

plas ics pipes pro ided with a thin b r ie la e , (e.g t o pr vent or gr atly diminish the difusion of

g ses an the transmis ion of lght through the pipe wal ) an w he e the design s r s r q ir ment

ar t otaly met b the base p lyme (P )

Note 1to entry: Such pipes ty ical y have an outside (b r ier) layer of ma imum 0,4 mm thick es , inclu ing an

ad esive Pipes with an outside layer gre ter than 0,4 mm are considered as multilayer pipes (se R eference [9] ,

with the outside layer then b ing the f ir t of multiple layer rather than having only b r ier fu ction

3.2 Symbols

C o e al se vic (design) coefficient

d

e

out ide diamet er (at any p int)

d

em

mean out ide diamet er

d

em,min

minimum mean out ide diamet er

d

em,ma

ma imum mean out ide diamet er

d

n

nominal out ide diamet er

d

sm

mean inside diamet er of socket

e

ma

ma imum wal thick es at any p int

e

min

minimum wal thick es at any p int

p int ernal hydros atic pr s ur

calc

calculat ed pipe v lue

S

calc,ma

ma imum calculat ed pipe v lue

T

cold

cold wat er t empe atur

T

D

design t empe atur

T

al

malfu ction t empe atur

T

a

ma imum design t empe atur

σ

cold

design s r s at 2 °C

σ

D

design s r s

σ

DF

design s r s of plas ics f it ing mat erial

σ

DP

design s r s of plas ics pipe mat erial

σ

F

hydros atic s r s v lues of plas ics fit ing mat erial

σ

P

hydros atic s r s v lues of plas ics pipe mat erial

σ

L L

lowe confidenc lmit of the pr dict ed hydros atic s r ngth

3.3 A bbreviated terms

DN /OD nominal siz , out ide diamet er r lat ed

LPL lowe confidenc lmit of pr dict ed s r ngth

MDP ma imum design pr s ur

P -H poly ut ene homo olyme

P -R poly ut ene ran om co olyme

4 Clas ification of service c onditions

The pe formanc r q ir ment for piping sy st ems conforming t o ISO 1 876 (al p rt ) ar spe ified for

four dife ent a plcation clas es shown in Ta le 1

NOTE Each clas is related to a ty ical f ield of ap lication an for a design period of 5 year T e

clas if ication is taken from ISO 1 5 8 T e f ields of ap lication are given as a guideline an are not o lig tory

Clas 3(low temperature u derflo r he ting) given in ISO 1 5 8 do s not ap ly t o ISO 1 87 6 (al parts)