Tiêu chuẩn iso 08503 5 2017

© ISO 2017 Preparation of steel substrates before application of paints and related products — Surface roughness characteristics of blast cleaned steel substrates — Part 5 Replica tape method for the[.]

Preparation ofsteel substrates before

Part 5:

Pré aration des subjectiles d’acier a a t a plication de peinture s et

de produits assimilés — Caractéristiques de ru osité de s subjec tile s

d’acier déca és —

Partie 5: Méth de de l’empr inte sur ru a adh sifp ur la

déte mination du profil de surf c

S con edition

2 17-0

Refer ence n mb r

ISO 8 0 -5:2 17(E)

COPYRIGHT PROTECTED DOCUMENT

© ISO 2017, P blshed in Sw itz rlan

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CH-1 14 Vernier, Geneva, Switzerlan

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F reword i v

Introduction v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms and definitions 1

4 Principle 1

5 A pparatus 2

6 Maintenanc e and as uranc e of calbration for the r epl ca tape meth d 2

7 Proc ed re .3

8 Specificatio of ac c eptable er r or .3

9 Test rep r t 3

A nne x A (informative)Me surement er ror s as ociated with r epl ca tape determination of pr ofi e height 5

A nne x B (informative)Guidanc e o the c orrespo denc e betwe n repl ca tape and ISO c omparator determinatio s of pr ofie height 6

A nne x C (informative) Grades of replca tape 8

A nne x D (informative) S r vic e lfe and storag e rec ommendations for r eplca tape 9

Biblog raphy 10

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

This document was pr p r d b Te h ical Committ ee ISO/TC 3 , Paints a d v rni shes , Subcommitt ee

SC 1 , Prep ration o s te l s ubs trates befr a plc atio o p ints a d r lated produc ts

This se on edition canc ls an r plac s the f irs edition (ISO 8 0 -5:2 0 ), w hich has be n t ech icaly

r vised

A l s of al p rt in theISO 8 0 se ies can be fou d on the ISO websit e

The pe formanc of prot ective co tings of p int an r lat ed prod ct a pled t o st eel is signif icantly

afe t ed b the s at e of the st eel surfac immediat ely prior t o painting The princip l fact ors that ar

k own t o influenc thispe formanc ar :

a) thepr senc of rus an mi l scale;

b) thepr senc of surfac contaminant , inclu ing salt , d s , ois an gr ases;

c) thesurfac prof ile

ISO 8 0 (al p rt ), ISO 8 0 (al part ) an ISO 8 0 (al p rt )ha e be n pr p r d t o pro ide methods

of as es ing these fact ors, w hie ISO 8 04 (al p rt ) pro ides guidanc on the pr p ration methods

that ar a ai a le for cleaning st eel subs rat es, in icating the ca a i ties of each in at aining spe ified

levels of cleanl nes

These Int ernational Stan ards do not contain r commen ations for the prot ective co ting sy st ems

t o be a pled t o the st eel surfac Neithe do they contain r commen ations for the surfac q alty

r q ir ment for spe if ic situations, even though surfac q alty can ha e a dir ct influenc on the

choic of prot ective co ting t o be a pled an on it pe formanc Such r commen ations ar fou d

in othe document , such as national s an ards an codes of practic It wi be ne es ary for use s of

these Int ernational Stan ards t o ensur that the q alties spe ified ar :

— comp tible an a pro riat e b th for the environmental con itions t o w hich the st eel wi l be ex osed

an for the prot ective co ting sy st em t o be used;

— within theca a i ty of the cleaning proc d r spe if ied

The Int ernational Stan ards r fe r d t o a o e deal with the folowing aspe t of pr paration of st eel

subs rat es:

— ISO 8 0 — Vi s ual as s es s ment o s urfc e clea lnes s;

— ISO 8 0 — Tes ts fr the as s es s ment o s urfc e clea lnes s;

— ISO 8 0 — S rfc e ro g nes s charac te i s tic s o blas t-clea ed s te l s ubs trates;

— ISO 8 04 — S rf c e pr p ration meth ds

Each of these Int ernational Stan ards is in turn divided int o separat e p rt

It is imp rtant t o not e that n me ical charact erization of a surfac profile is meaningful only w hen

ac omp nied b an u de s an ing of the e rors of measur ment an b the r alzation that dife ent

t ech iq es ma yield somew hat dife ent n me ical v lues for the profile Es imat es of measur ment

e ror as ociat ed with dife ent t ech iq es can be o tained from national or int ernational s an ards or

from the eq ipment man factur rs As shown in An ex B, v lues given b the r plca ta e method al gn

wel with those o tained using othe p rt of ISO 8 0

Information r g rding the ma nitu e of e rors as ociat ed with use of r plca ta e is given in Annex A

A dv ntag es of the r plca ta e method inclu e the fact that it afords n me ical charact erization, yields

a pe manent r cord, works wel on curved surfac s an benefit from a g eo ra hical y bro d b se of

use ex e ienc o e a pe iod of seve al de ades

Preparation ofsteel substrates before application ofpaints

Part 5:

This document desc ibes a f ield method for measuring the surfac prof ile prod c d b any of the

a rasive blas -cleaning proc d r s given in ISO 8 04- 2 The method uses r plca ta e an a suita le

ga ug e for measuring, on sit e, the rough es of a surfac befor the a plcation of p int or anothe

prot ective co ting

The method is a plca le within the rang e of profile height cit ed for a given grade (or thick es ) of

r plca ta e The comme cial gradescur ently a aia le pe mit measur ment of a e ag e peak-t o-v ley

profiles of 2 µm t o 1 5µm The method is v ld for surfac sthat ha e be n cleaned with a rasives

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 46 18, Paints a d v rni shes — Te ms a d de initio s

ISO 8 0 -1, Prep ratio o s te l s ubs trates befr a plc atio o p ints a d r lated produc ts — S rf c e

ro g nes s charac te i s tic s o blas t-clea ed s te l s ubs trates — Part 1: S ec ific atio s a d de initio s fr ISO

s urf ce profie c omp rators fr the as ses s ment o a ras i ve blas t-clea ed s urf c es

3 Terms and definitions

F or the purposes of this document, the t erms an def initions given in ISO 4618 an ISO 8 0 -1 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 Onlne brow sing plat orm:a ai a le at ht p:/ www iso org o p

4 Principle

The r plca film in r plca ta e consis sof a layer of c usha le plas ic mic ofo m co t ed ont o a p lyest er

subs rat e of highly uniform thick es (5 µm ± 2 µm) When compr s ed a ains a hard surfac , the

mic ofo m cola ses an acq ir s an impr s ion of the surfac The thick es ofthe r plca isa measur

of the surfac profile

When the r plca f ilm is co t ed with a thin ( 80 nm) la e of a d ctie an o ticaly r fle tive metal, such

as in ium, the r plcat ed surfac can be s u ied with an o tical int erfe ometric profile When the f ilm

is co t ed with a simiarly thin la e of a d ctie an ele tron-emis ive metal, such as g old, platin m or

p ladium, the r plca ma be s u ied with an ele tron mic osco e

NOTE T is method me sures an “averag e ma imum pe k-to-valey prof ile” b cause the an ils of the

mic ometer g ug flat en the replica prof ile slightly so that the re ding eq ates to an avera e ma imum value,

though this is not he same as a mathematical avera e

5.1 Replca tape, consisting of a sq are pie e of r eplca fim (measuring a pr ox imately 1 mm along

each side) attached to ad esive-b cked p pe tape The fim shal be mounted o e a hole (a pr ox imately

1 mm in diamete ) in thec ntr e of a se tion of the p pe tape (a prox imately 53 mm × 1 mm in siz ),

which is printed with the g rade of ta e and the corr esponding rang e of pr ofie height

NOTE Grades of replica tape are availa le for me surement of prof iles b tween 2 µm an 6 µm (“Co r e”

grade)an b tween 3 µm an 1 5µm (“X-Co r e” grade) Ad itional grades permit checking me surements at

or ne r the low (2 µm)an high (1 5 µm)en s of this rang S e An e C

The ta e’s ad esive b cking pr vent mo ement of the r plca film d ring the t es an alow s the

sample identification an measur d profile paramet ers t o be r corded

The c ushed mic ofo m can be furthe compr s ed an should the efor be handled with car ,

espe ialy w hen measuring it thicknes

5.2 Micrometer gaug e, use a spring -lo ded instrument pe ificaly desig ned for use w ith r eplca ta e,

ha ving a closing for ce of 1,0 N to 1,2 N and an ac uracy of ± µm or bete The anvils shal be cir cular w ith

the up e anvil (that touches the non-compres ible p lyes e side of the r eplca fim) ha ving a diamete

of 6,3 mm an the lowe fac being the same siz or lar g er

5.3 C mpr es ion to l, consisting of a hard, smo th, rou ded, a pr oximately sphe ical (nominal

diamete 8mm)surfac that is used to compr es the replca fim agains the surfac to be measured This

to l sometimes takes the form of a rod with a compr es ion b l at one en

6 Maintenance and as uranc e of cal bration for the repl ca tape method

Each comp nent of the r plca ta e has it own st orag e lfe an efe tive o e ating t empe atur with

the r plca f ilm being much mor d ra le than theadhesive-b cked p pe ta e

R eplca ta e should be st or d at ro m t empe atur , prolong ed st orag e of r plca ta e out ide the rang e

5 °C t o 3 °C for mor than two years is not r commen ed ( e Annex D) R ol s of r plca ta e ar

marked with a bat ch n mbe an dat e of man factur Both should be not ed in the t es r p rt

The measuring g ug e, w hie rugg ed, should be tr at ed with the usual level of car as ociat ed with a

pr cision ins rument

The g ug e shal be calbrat ed r gularly (e.g b the eq ipment man factur r, their authoriz d ag ent

or b an ac r dit ed calbration la orat ory) A c rtificat e of calbration showing trac a i ity t o a

national measur ment s an ard can be is ued The e is no s andard time int erv l for r -cal bration,

nor is one a solut ely r q ir d, but a calbration int erv l can be es a l shed b sed on ex e ienc an

the work environment A one-year calbration int erv l is a ty ical fr q ency sugg est ed b many g ug e

man factur rs

Gaug e ac uracy shal then be che ked b the o e at or at r gular int erv ls using a pro riat e s an ards

in ac ordanc with the man factur r’ s ins ructions If the r sult fal out ide the lmit of ac uracy

spe ified b the man factur r, the ins rument hal not be used

Information on the cor elation of ISO comp rat or measur ment with those o tained b r plca ta e is

given in An ex B

7 Procedure

S le t a r pr sentative ar a of the surfac for measur ment

S le t a grade ( hick es ) of r plca ta e that inclu es the targ et profile

Pr p r the mic omet er g ug e b cleaning the anvi s an adjus ing thez ro p int t o r ad − 0,8 μm, the

thicknes of the non-compr s ible polyest er subs rat e This initial adjus ment a ut omaticaly subtract

the thick es of the subs rat e from al subseq ent r adings Some digital mic omet ers aut omaticaly

pe form this initial adjus ment

R emo e a single pie e of r plca ta e from it r lease p pe Ap ly it t o the blas -cleaned surfac an

rub the compr s ion t ool (5.3) o e the r plca film in the c ntr of the ta e, using f irm pr s ur , with a

cir ular an / r x-y motion u ti the cir ular ar a of the r plca ta e is darkened u iformly

R emo e the ta e from the surfac and plac the r pl ca betwe n the anvis of the measuring g ug e,

making sur that the ta e is c ntr d pro e ly R elease the measuring g ug e g ently ont o the r plca an

r ad the prof ile

The a e ag e of two profile r adings cons itut es a prof ile measur ment Man factur r r commen ations

pro ide guidanc on w hethe these two r adings should be o tained with the same grade or two

dife ent grades

The n mbe of measur ment shal be a r ed betwe n the int er st ed p rties

Befor the surfac un e t es is measur d, the ac uracy of this method ma be che ked b measuring a

k own profile, such as an ISO comparat or

NOTE T e same proced re is used for me suring g ug s that re d in non-SI u its, such as mil or thou

( housan ths of an inch; 1 mil or thou ap ro imately 2 ,4 µm) Gaug s calibrated in non-SI u its are su plied

with instructions ap ropriate to those u its

8 Specification ofacc eptable err or

An es ential part of any spe if ication r lating t o surfac profile is an ex lcit s at ement of how the

surfac profile was det ermined Implcit in this spe ification is an u de s an ing of b th the pr cision

an the ac uracy as ociat ed with a given method of measuring the prof ile A discus ion of e ror

as ociat ed with r plca ta e measur ment is given in An ex A

The n mbe of r adings t o be taken an the rang e of ac epta le profiles shal be a r ed betwe n the

int er st ed parties befor measur ment s art

9 Test r eport

The t es r p rt hal contain at leas the folowing information:

a) al the information ne ded for the identif ication of the sample t est ed;

b) a r fe enc t o this document, inclu ing it year of publcation, i.e ISO 8 0 -5:2 17 ;

c) r pl ca ta e b t ch n mbe an dat e of man factur ;

d) measur d prof iles an location of measur men

e) mic omet er calbration dat e an r cord of mos r c nt mic omet er ac uracy che k ;

f) thework sit e identif ication an proje t name ( if a plca le);

g) thedat e of the t est ;

h) thenameof theo e at or;

i) any deviations from the proc d r ;

j) any u usual featur s o se ved