08 Inspection & QC

(1)

Inspection and control

& Related Standards

(2)

What is QA - QC ?

QA = Quality Assurance

(A documented management system)

QC = Quality Control

(Inspection and testing routines)

(3)

What is QA - QC ?

QA = Quality Assurance

(A documented management system)

QC = Quality Control

(Inspection and testing routines)

(4)

The tasks of the paint inspector

•

• To ensure that the requirements of

To ensure that the requirements of

the coating specification are met.

•

• Verify the quality of or!

Verify the quality of or!

carried out "y the contractor#yard.

•

• $repare ritten records of the standard

$repare ritten records of the standard

of

or!

%

Appro&al

('atisfactory



#

Conforming

)

%

(5)

An inspector’s work includes:

•

*e capa"le of interpreting

the specifications

•

+nderstand the o",ecti&e

of the inspection

•

Inspect all structures to "e painted

•

-nsure that all specified requirements are met

(6)

Daily logs

• 'teel temperature

• Air temperature

• 0 1elati&e 2umidity

• e point

• 3",ect no. and name

• -4act specification

• $re%treatment5

specified and actually

conducted.

• 6ilm thic!ness (to "e measured also at spot repair)

• Area5 m7

• $roduct name5 place of production and "atch no.

• ame of rele&ant persons

• 8hat as discussed

• on conformance report (remem"er signatures)

(7)

• All paints that ill "e used

• All rele&ant inspection

methods and inspection tools

• 1ele&ant standards

• 1ele&ant T' and 9''

• 9ethods in&ol&ed in cleaning5 pre%treatment

and paint application

• The equipment used for pre%treatment and

An inspector needs to know

(8)

What needs to be inspected ?

:

'hop%priming of the steel

:

The steel or!

($re%"lasting preparation)

:

Cleaning and surface preparation

prior to paint application

:

Application of paint

:

The applied paint film and its

curing#drying conditions.

If relevant, the following stages

(9)

nspection tools

(10)

nspection tools!

"irror and flash light

•

Visual inspection

•

Important tools for inspecting areas difficult to access

•

For inspection in confined spaces: se !" appro#ed e$uipment

(11)

#sing nspection tools!

"irror and flash light

•

Visual inspection

•

Important tools to &e a&le to inspect areas difficult to access

(12)

"agnifier

•

Visual inspection

•

'and( tool )*en loo+ing for defects, to #erif( cleanliness and roug*ness of t*e su&strate

(13)

Tools for $arking

areas with defects

•

-*oto: .*al+ for mar+ing areas during inspection

•

/o &e used &ot* after pre0treatment and painting

•

reas )it* defects must &e mar+ed properl(

Cd-4932-9

NOTE:

Chal! might "e considered as contamination for some paint systems/

(14)

nspection of steel work

%&re-blasting preparation'

• Rounding of sharp edges.

• Smoothing of rough welding seams. • Removal / grinding of weld spatter

and beads.

• Cracks and pittings.

• Surface faults like laminates etc. • ISO 12944 - 3 , or ISO 8501 - 3

"he following ite#s need to

(15)

nspection of cleaning and surface

preparation prior to application

•

Cleanliness (salt5 oil5 grease and dust#dirt)

•

-&aluation of present condition (rust grade)

•

'urface preparation (e.g. "last cleaning)

•

Cleanliness of prepared surface

(salts5 oil5 grease5 dust and dirt)

•

Climatic conditions

If relevant, the following conditions

#ust be inspected $ verified

(16)

(ele)ant standards for assessing

surfaces prior to paint application

Standard

%rea

IS& 8!' (isual assess#ents of surface cleanliness)

IS& 8!2 "ests for the assess#ent of surface cleanliness) IS& 8!3 Surface roughness characteristics

of blast-cleaned steel substrates) IS& 8!4 Surface preparation #ethods)

(17)

Cd-*3'-!9 Cd-*3'-!8 Cd-*3'-!+ Cd-*3'-!*

*+ ,./-/

0)aluation of rust grades

ust grade %

ust grade  ust grade .

(18)

Sa/

last cleaning grades 1, 2, 2  and 3

St)/

'and and po)er tool cleaning

grades 2 and 3

0l/

Flame cleaning one grade

*+ ,./ - /

*tandard for deciding preparation grades

(19)

%631055 4932076

*+ ,./ - /

*tandard for deciding preparation grades

• eft: last standard agreement

(20)

*+ ,.1

Assess$ent of surface cleanliness

%/ of 1'%/ of 1'

Part ' Field test for solu&le iron corrosion products

Part 2 a&orator( determination of c*loride on cleaned surfaces

Part 3 ssessment of dust on steel surfaces prepared for painting pressure0 sensiti#e tape met*od

Part 4 uidance on t*e estimation of t*e pro&a&ilit( of condensation prior to paint application

Part ! ;easurement of c*loride on steel surfaces prepared for painting Ion detector tu&e met*od

(21)

*+ ,.1

Assess$ent of surface cleanliness

%1 of 1'%1 of 1' Part * !"traction of solu&le contaminants for anal(sis

/*e resle met*od

Part 9 .onductometric measurements of solu&le salts 

(22)

ppro#ed <ot appro#ed

/ape last cleaned steel

*+ ,.1-2

Assess$ent of dust

(23)

*+ ,.1 - 2

Assess$ent of dust

• eft: =ust on steel &eam

• ig*t: .ontrol of dust according to standard

(24)

*+ ,.1 - 2

Assess$ent of dust

%ssess#ent of dust on steel surface prepared for painting ') >uantit( ratings 1, 2, 3, 4

and 5 corresponding to pictorial references

2) =ust si?e classes: %, 1, 2, 3, 4 and 5

(25)

1 ir temperature 2 B elati#e *umidit( 3 teel temperature 4 =e) point

*+ ,.1 - 3

4u$idity

uidance on te estimation of te pro&a&ilit(

of condensation prior to paint application

(26)

*+ ,.1-3

"easuring the relati)e hu$idity

• -*oto: ling ps(c*rometer for measuring:

0 =r( temperature 0 Cet temperature

• ;easure t*e temperature in t*e #icinit(

• .alculate t*e relati#e *umidit(

• se toget*er )it* de) point calculator

(27)

*+ ,.1-3

Dew point calculator

• For calculation of de) point

• /o &e used toget*er )it* surface temperature

t*ermometer and sling ps(c*rometer

• se t*is fre$uentl( during pre0treatment, application and

dr(ing of t*e paint

• ecommendation: !#er( 6 *ours and )*en )eat*er conditions are c*anging

(28)

Contact ther$o$eter

•

!lectronic instrument for measuring t*e steel temperature

•

Dt*er t(pes of t*ermometres are also a#aila&le !g magnetic t*ermometers

(29)

024@204

48470693

*+ ,.1 - 3 *+ ,.1 - 3

0sti$ating probability of condensation

• .old li$uid inside *ull and )arm air outside

causes condensation

(30)

•

%#bient te#perature will influence/

E

s*elf life

E

pot life

E

#iscosit(@spra(0a&ilit(

E

steel temperature

•

Steel te#perature will affect/

E

speed of cure

E

degree of cure

E

recoating inter#al

A$bient te$perature and

steel te$perature

(31)

*+ ,.1 - 

Chlorides on steel surfaces

;easurement of .*loride on steel surfaces

prepared for painting

(32)

*+ ,.1 - 5

The 6resle $ethod!

 met*od for e"traction of

solu&le contaminants on

steel su&strates for anal(sis:

"he .resle #ethod

(33)

*+ ,.1-5

*alt test e7uip$ent - 6resle test

•

ID 85%2 0 9 .onducti#it(

•

!$uipment for measuring content of )ater solu&le salt on su&strate

(34)

Cd-4932-9+

*+ ,.1-5

yringe - 6resle test: a$pling

•

resle salt test

•

(ringe for inecting distilled )ater

•

*o)s *o) to inect t*e distilled )ater t*roug* t*e frame and into t*e pad

•

/*e )ater must &e pumped in and out

(35)

*+ ,.1 - 8

Conducto$etric $easure$ent of soluble salts!

Field met*od for measuring solu&le salts

&( conducti#it( 

µ

 of solutions

(36)

*+ ,.1-8

Conducti)ity $eter

•

Instrument for measuring t*e conducti#it(

•

alt le#el is measured as t*e conducti#it( of t*e solution

•

Instrument s*o)s t*e conducti#it( )*ic* *a#e to &e recalculated to gi#e t*e salt le#el on t*e

su&strate

•

(37)

Different types of salt ha)e different

affinity to water 9 hu$idity

•

a&orator( test

•

=ifferent t(pes of salt are applied t*e steel plates

•

e#eral mont* of e"posure

•

t similar le#els: .*lorides more se#ere t*an ulp*ates

(38)

4ow to $easure the

salt le)el on a surface

•

Cater solu&le salts )ill &e remo#ed &( )ater etting

•

'ere: /*e su&strate is cleaned at a pressure of 2%%% &ar

•

alt le#el is measured &( t*e resle met*od

•

=issol#e t*e salt inside t*e frame of t*e patc*

•

;easure t*e conducti#it( of t*e )ater sample

(39)

nstru$ents for $easuring

surface roughness

• t(lus instruments

• !lcometer ;od 123

• /este" -ress0D0film

• ;icroscope

• .omparator

E

ugotest <o 3

(40)

*+ ,.2

*urface roughness of blast-cleaned steel

Part '

pecifications and definitions for ID surface profile co#paratives for t*e assessment of a&rasi#e &last0cleaned surfaces

Part 2 ;et*od for t*e grading of surface profile of a&rasi#e

&last0 cleaned steel 0 Co#parator procedure

Part 3

;et*od for t*e calibration of ID surface profile comparators and for t*e determination of surface profile0 Focusing microscope procedure

Part 4

;et*od for t*e cali&ration of ID surface profile comparators and for t*e determination of

(41)

*+ ,.2

*urface roughness

•

!"ample of a reference comparator

•

urface profile comparator comprising four segments

•

rit 

•

*ot 

•

.*ec+ if t*e profile is

according to specification and t*e paint

(42)

*+ ,.2 - /

i$its of profile grades

a Co#parators for steel) .last-cleaned with grit abrasives

0ine : -rofiles e$ual to segment 1 and up to, &ut e"cluding segment 2

-rofiles e$ual to segment 2 and up to, &ut e"cluding segment 3

;ediu# : Coarse :

b Co#parators for steel) .last-cleaned with shot abrasives

0ine S

;ediu# S

(43)

*+ ,.2 - /

;o$inal )alues and tolerances

a .omparators for steel, &last0cleaned )it* grit a&rasi#es

Seg#ent 6o#inal reading

<# "olerance<#

1 25 3

2 6% 1%

3 1%% 15

4 15% 2%

& .omparators for steel, &last0cleaned )it* s*ot a&rasi#es

Seg#ent 6o#inal reading

<# "olerance<#

(44)

pecifications for metallic &last0cleaning a&rasi#es /*e standard consists of 5 parts

Part ' Introduction

Part 2 Chilled iron grit

Part 3 =igh carbon cast steel shot and grit Part 4 >ow carbon cast steel shot

Part ! Cut steel wire

*+ ///13

Content of the standard

(45)

*+ ///1

Content of the standard

;et*ods of test for metallic &last0cleaning a&rasi#es /*e standard consists of 8 parts

Part ' ampling

Part 2 =etermination of particle si?e distri&ution

Part 3 =etermination of *ardness

Part 4 =etermination of apparent densit(

Part ! _{=etermination of defecti#e particles}

and microstructure

(46)

pecification for non0metallic &last0cleaning a&rasi#e /*e standard consists of 1% parts

Part ' Introduction

Part 2 ilica sand

Part 3 .opper refiner( slag

Part 4 .oal furnace slag

Part ! <ic+el refiner( slag

Part * Iron furnace slag

Part + Fused aluminium o"ide

Part 8 Dli#ine sand

Part 9 taurolite

IS& '''2*

Content of the standard

(47)

*+ ///1<

Content of the standard

/e

/est met*ods st met*ods for non0metallic &last0cleaning for non0metallic &last0cleaning a&rasi#esa&rasi#es

/*e standard consists of 8 parts

Part '

Part ' amplingampling

Part 2

Part 2 =etermination of particle si?e distri&ution=etermination of particle si?e distri&ution

Part 3

Part 3 =etermination of apparent densit(=etermination of apparent densit(

Part 4

Part 4 =etermination of *ardness &( a glass slide test=etermination of *ardness &( a glass slide test

Part !

Part ! =etermination of moisture content=etermination of moisture content

Part *

Part * =etermination of )ater solu&le=etermination of )ater solu&le

contamination &( conducti#e measurement

(48)

Conta$ination of abrasi)es

•

Cater

•

Dil and grease

•

.*lorides

•

ulp*ates

/*e a&rasi#es can &e

(49)

*+ ///1< - 

Content of hu$idity of the

Content of hu$idity of the abrasi)es

abrasi)es

Content of hu$idity of the

abrasi)es

•

• a&orator( test

a&orator( test

•

(50)

*+ ///1< - 5

Content of water soluble conta$inants

•

 sample of 1%% g of t*e a&rasi#es

•

1%% ml of )ater

•

*a+e for 5 minutes and let rest for 1 *our

•

*a+e again for anot*er 5 minutes

•

;easure t*e conducti#it( at a temperature of 1% o.

Conductivit7 #easure#ents

(51)

s the abrasi)e free fro$

oil and grease ?

•

/; = 494%

•

-ut a *andful of t*e

a&rasi#es into a &ea+er

•

-our clean, fres* )ater into t*e &ea+er

•

*a+e t*e mi"ture

•

 film of oil )ill form on top of t*e )ater if oil or

(52)

;ethod '/ ;ethod 2/ ;ethod 3/ ;ethod 4/ ;ethod !/

=etermination of )et film t*ic+ness =etermination of dr(0film t*ic+ness &(

calculation from mass

;easurement of dr(0film t*ic+ness &( mec*anicall( contacting met*od

;easurement of dr(0film t*ic+ness &( t*e profilometer met*od

;easurement of dr(0film t*ic+ness using microscope met*od

*+ 1,., - 8<

Deter$ination of fil$ thickness

(53)

;ethod */ ;ethod +/ ;ethod 8/ ;ethod 9/ ;agnetic met*od !dd( current met*od <on0contact met*ods

ra#imetric met*od dissol#ing met*ods

*+ 1,., - 8<

Deter$ination of fil$ thickness:

(54)

?et paint

Steel

*+ 1,., - 8< "ethod ;o!/

Wet fil$ $easuring co$b

;icrons

(55)

Calculations : &aint

Abbre)iations

CF/



Cet Film /*ic+ness

=F/



=r( Film /*ic+ness

B V



-ercent Volume olids

F



oss

Factor

(56)

@a#ple/ CF/  25% µm B V  5% B =F/   125 µm CF/ " B V 1%% 25% " 5%

=or$ula for deter$ining the D=T

(57)

=or$ula for deter$ining the W=T

@a#ple/ =F/  1%% µm B V  65 B =F/ " 1%% B B V 0or#ula / ?0" A

(58)

=or$ula for deter$ining the

W=T after thinning

=F/  1%% microns

B V  65 B

dded t*inner  2% B

Volume of paint  1 litre <e) B V:  54 B Volume of t*inner  %,2 litre

<e) #olume  1,2 litre

CF/   '8! µm

65 1,2

1%% B " 1%% microns 54 B

(59)

Theoretical spreading rate

=F/  1%% microns B V  65 1%  Factor  65m2@litre B V " 1% =F/ 65 " 1%  m2_@litre Formula: preading rate:

(60)

Consu$ption of &aint with loss

!po"(

mastic

 196

litre

-ol(uret*ane topcoat

 83 litre

5%% " 2%%

1% " 85 " %,6 5%% " 5%

"o be painted/ "anB, area of ! #2 _{, 4  loss}

4% B loss implies t*at onl( 6% B )ill remain on t*e surface /*e correction factor, oss factor, )ill &e %6

0or#ula/ %rea, #2 @ 0"

(61)

Dead )olu$e

Dead )olu$e increases the

increases the

)olu$e of paint re7uired

Steel

S#ooth polished steel surface ven fil# thicBness

Dneven steel surface

Paint will fill the valle7s

Specified thicBness ead volu#e

(62)

Consu$ption of paint with loss

including Dead >olu$e

%/ of 1'

/otal

=ead #olume, litre  rea m2 " =V " 1%% B V " F oughness, #icrons 3 4! * +! 9 '! ead volu#e, l$ #2 )2 )3 )4 )! )* )+

(63)

nspection after application

• Climatic conditions (Ventilation,

Temperature and humidity)

• Curing / drying of the film

• Dry film thickness (DFT)

• Adhesion

%fter application

(64)

*+ 1,., - 8<

Deter$ination of fil$ thickness

;etod <o 6: ;agnetic metod

• ;agnetic induction principle ;et*od 6 

• -ermanent magnetic principle ;et*od 6 

• Instruments for magnetic, metallic su&strates

• .ali&ration must &e done in accordance

)it* instructions from t*e manufacturer

(65)

*+ 1,., - 8<

Deter$ination of fil$ thickness

• 'ig* fre$uenc( electromagnetic instrument

• For non0magnetic su&strates

• .ali&ration in accordance )it* t*e

manufacturers instruction

(66)

*+ 1,., - "agnetic and electro$agnetic

Dry fil$ thickness gauges

•

=r( film t*ic+ness gauge

•

.ali&rate on smoot* surface to ?ero and to t*ic+ness similar to &e measured

•

.*ec+ )it* (our

cali&ration foil fre$uentl(

•

-lastic material foils )ear easil( eplace fre$uentl(

•

<o internal memor( in gauge

(67)

**&C - &A 1

"easuring D=T on s$all areas

') rea of 1% m2: 5 spot measurements

2) !ac* spot measurement: /*e a#erage of 3 indi#idual readings made on one small area

3) /*e a#erage of 5 spot measurements must &e )it*in specified range of film t*ic+ness

4) ingle spot measurements ma( &e as lo) as 8%B of specified minimum film t*ic+ness

(68)

**&C - &A 1

;u$ber of fil$ thickness $easure$ents

1 1% m2 5 spots on eac* spot: 3 measurements

2 3% m2 s for case 1 for eac* 1% m2

3 p to1%% m2 elect 3 areas, eac* of 1% m2

4 &o#e 1%% m2 /*e first 1%% m2 as for case 3

For eac* follo)ing 1%% m2 select randoml( one area of 1% m2

<ote: If measurements outside t*e specification for an( 1% m2 in case 3 or 4 a&o#e are

found, t*en eac* 1% m2 s*all &e measured

(69)

A*T" D 3<1-,<

"0 curing test of @inc ethyl silicate

•

eft: Dne cured and uncured test plate

•

ig*t: ncured ?inc o#er coated esult: =elamination

04

(70)

A*T" D 228-,<

Adhesion testing by knife and adhesi)e tape

•

/*ere are t)o test met*ods

•

/*e met*od to select depends on t*e =F/

;ethod %/ =F/ a&o#e 125 microns

;ethod ./ =F/ &elo) 125 microns

&o#e 125 if )ider cuts are used

;ethod %/ K 0 cut /ape test

(71)

A*T" 228-,<! "ethod 6

Adhesion testing

• L 5% microns  1 mm apart 11 cuts

• 5% 0 125 microns  2 mm apart 6 cuts

• M 125 microns  ;et*od  or 3 mm &et)een cuts

1 .uts: 2% mm long

2 rus* )it* a soft &rus* 3 !"amine

4 .uts: 2% mm long at 9%o on t*e original cuts

(72)

*+ 13.8

Cross-cut test

Cutting tool Cutting tool

ingle &laded +nife

or

;ulti0&lade cutting tool )it* 6 cutting

edges spaced 1 mm or 2 mm apart

Spacing of cuts Spacing of cuts % % 0 0 66% % mmiiccrroonnss: : 1 1 mmm m ssppaacciinngg, , **aarrd d ssuu&&ssttrraatteess % % 0 0 66% % mmiiccrroonnss: : 2 2 mmm m ssppaacciinngg, , ssoofft t ssuu&&ssttrraatteess 6 6% 0 % 0 1122% m% miiccrroonnss: : 3 m3 mm sm sppaacciinngg, *, *aarrdd@@ssoofft st suu&&ssttrraatteess

(73)

Procedure/

•

;a+e 6 parallel cuts )it* defined space in t*e coating;a+e 6 parallel cuts )it* defined space in t*e coating

•

epeat operation, crossing original cuts at 9%epeat operation, crossing original cuts at 9%oo so t*at a so t*at a

grid pattern is formed

•

rus* )it* soft &rus*rus* )it* soft &rus*

•

ppl( ad*esi#e tape and pull offppl( ad*esi#e tape and pull off

•

.lassif( results in accordance )it* ta&le 1.lassif( results in accordance )it* ta&le 1

*+ 13.8

Cross-cut test

(74)

*+ 13.8

Cross cut adhesion test

•

.ross cut ad*esion test.ross cut ad*esion test

•

.ut #ertical and.ut #ertical and

*ori?ontal lines to

form a grid

•

ppl( a strong tapeppl( a strong tape

•

-ull off t*e tape-ull off t*e tape

•

!#aluate according to!#aluate according to

t*e standard

Cd-4932-9' Cd-4932-9'

(75)

*+ 13.8

Classification of Cross-cut test

Classi-fication

escription

%ppearance of surface

Si@ parallel cuts

 .ompletel( smoot*: none of t*e s$uares detac*ed

' mall fla+es at t*e Intersections rea affected 5 B

2 Fla+ed along t*e edges and@or at t*e_{Intersections rea affected: 5015B}

3

Fla+ed along t*e edges, )*oll( in large ri&&ons, and@or partl( or )*oll( on different parts of

t*e s$uares rea affected: 15035B

(76)

Instru#ents/

• !lcometer d*esion /ester

• ae&erg d*esion /ester pneumatic

• 'ate desion /ester (draulic

• -/

*+ 3513

&ull-off test for adhesion

0ailure/

(77)

*+ 3513

&ull-off test for adhesion

Procedure:

• /est dollies glued onto t*e coating

• d*esi#e: .(ano0acr(late or sol#ent free epo"(

• emo#e ad*esi#e and coating around t*e dollies

• -ull off test0dollies #ertical to t*e surface

• ead ad*esion #alue and report t*e t(pe of fracture

0ractures/

• d*esion failure 0 fracture &et)een coats or su&strate and 1 coat

(78)

*+ 3513

&ull-off dollies glued to the structure

•

-ull off ad*esion test

•

=ollies are glued to t*e structure )it* a strong glue

•

-rior to pull0off:

.ut around t*e doll(, t*roug* t*e paint film and do)n to t*e

su&strate material

(79)

*+ 3513

&ull-off testing of paint on a structure

•

-ull off ad*esion test

•

=estructi#e test met*od

•

'ere, connecting of t*e de#ice for pulling off t*e dollies

•

ead and note t*e #alue

•

e#eral t(pes of

instruments are a#aila&le

(80)

*+ 3513

Area after pull-off testing

•

-ull off ad*esion test

•

/*e ad*esi#ead*esi#e failure 0

fracture &et)een coats 0 or &et)een coating and

su&strate must &e e#aluated

•

<ote ad*esion failure, B

•

/*e co*esi#eco*esi#e failure 0

fracture )it*in t*e coating0 must &e e#aluated

•

<ote co*esion failure, B

(81)

A*T"  51 - , "ethod A

&inhole detection!

&inhole detection! ow

ow )oltage!

)oltage!

• o) #oltage: L 9% V =.

• /o detect pin*oles, #oids or metal particles to &e

in t*e range of 25025% microns

• !ffecti#e for paint films up to a =F/ of 5%%

microns if a )etting agent is used in t*e )ater

(82)

A*T" -51-,B $ethod A

ow )oltage pinhole detector

•

-*oto: o) #oltage pin*ole detector

•

=etecting pin*oles, #oids or metal particles in paint film up to 5%% microns

•

<on destructi#e test met*od

•

Cill onl( detect defects do)n to &are metal

•

/*e sponge must &e )etted

•

=o not use e"cessi#e )ater

(83)

A*T"  51 "ethod 6

4oliday detection!

4oliday detection! 4igh

4igh )oltage!

)oltage!

'ig* #oltage: 9%% 0 2%%%% V

sed to detect pin*oles, #oids and

areas )it* t*in paint films

(84)

A*T" -51-,B $ethod 6

4igh )oltage holiday detector

•

estructive test met*od for detecting pin*oles, #oids and t*in spots in paint film

•

dust #oltage according to t*e film t*ic+ness or t*e paint manufacturers

recommendation

•

i#es a lig*t or signal )*en pin*ole or )ea+ point is

detected

(85)

*+ /1833

eneral standard for corrosion protection:

Part ' eneral introduction

Part 2 .lassification of en#ironments

Part 3 =esign considerations

Part 4 /(pes of surface and surface preparation

Part ! -rotecti#e paint s(stems

Part * a&orator( performance test met*ods

Part + !"ecution and super#ision of paint )or+

Paints and varnishes - Corrosion protection of steel structures b7 protective paints s7ste#s)

(86)

*tandards for testing of

corrosion protecti)e properties

Propert7 $ nviron#ent Standard $ "est #ethod

=u#idit7 cha#ber Condensation

IS& *2+ Condensation, water at 4 EC I6 !'+ %S";  224+ Condensation, water at 38 EC %S";  '+3! =u#idit7 cha#ber Salt spra7 IS& +2!3, %S"; . ''+, .S 39 - 0'2, I6 !3'*+, I6 !2' %S"; : 8! Prohesion test 6atural weather e@posure IS& 28'

.S 39 0 * ?eather-o-#eter %S"; : !3

Cathodic disbonding %S"; : 8 '! #($%g-%gCl at 2 E C %S"; : 42 '! #($%g-%gCl at * E C

(87)

*tandards for e)aluation

of coated surfaces

Propert7

Standard $ "est #ethod

Paint fil# thicBness IS& 288 ?et and dr7 SSPC - P% 2

=olida7 detection %S"; : *2

>ow and high voltage egradation of coatings IS& 4*28

(88)

*tandards relating to

$echanical properties

Propert7 Standard $ "est #ethod

%dhesion Cross cut IS& 249, I6 !32!', .S 39-*, %S"; 33!9 %dhesion Pull-off IS& 4*24, %S"; 4!4', .S 39 - '

%dhesion

Shear strength

%S";  '2 Specified for CharteB

=ardness IS& 28'! .uchholF - #ethode =ardness IS& '!22 GHnig - pendel

=ardness .archol

lastici7 IS& '!2 Cupping test 0le@ibilit7 IS& *8* %S";  !22

.S 39 - '' Conical #andrel

(89)

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(90)

Testing and e)aluation!

$arine at$osphere

%/ of 1'%/ of 1'

"est #ethod Standards Co##ents Ph7sical testing %dhesion %dhesion 0le@ibilit7 lasticit7 =ardness I#pact resistance :loss %brasion resistance IS& 249 IS& 4*24 IS& '!' IS& '!2 IS& 28'! IS& *2+2 IS& 28'3 %S";  4*

.efore and after e@posure .efore and after e@posure .efore and after e@posure .efore and after e@posure

@posure conditions/ Saltspra7 Prohesion test D(-cabinet Condensation cha#ber =u#idit7 cha#ber ?eathering IS& +2!3 or %S"; . ''+ %S"; : !3 IS& *2+ .S 39 IS& 28'

(91)

Test method Standards Comments Evaluation of paint films

Blistering Rust Cracking laking Chalking Scri!e ISO "#$%$ ISO "#$%' ISO "#$%" ISO "#$%( ISO "#$%# )ST* + ,#("

Evaluation of the li-uid paint

)ppearance in tin ISO $"', ISO $%%"

.lo/ time0 1iscosit2

Testing and e)aluation!

$arine at$osphere

(92)

Abrasion resistance

"esting paints  %brasion resistance'

•

Ceig* t*e painted sample

•

Install it in t*e apparatus and run 1%%% c(cles