Iec 60455 2 2015

5.4 Vis osity af ter storing at ele ate temperature This method is not a pl ca le to one-comp nent s stems or comp nents containin hardener... The in re se of vis osity is calc lated u i

IEC 60455- 2

Edit io 3.0 2 15-0

Resin based react ive compounds used for electrical insulat ion –

Part 2: Met hods of t est

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IEC 60455- 2

Edit io 3.0 2 15-0

R esin based react iv e compounds used for elect rical insulat ion –

Part 2: Met hods of t est

CONTENTS

FOREWORD 5

INTRODUCTION 7

1 Sco e 8

2 Normative ref eren es 8

3 Terms an def i ition 11 4 General notes on method of test 1

4.1 Pre aration an con itionin 1

4.2 Seq en e of tests 12

4.3 Test re ort 12

5 Method of test f or re ctive comp u d an their comp nents 12

5.1 Flas p int 12

5.2 Den ity 12

5.3 Vis osity 12

5.4 Vis osity af ter storin at elevated temp rature 12

5.5 Content of volati e organic comp nents 13

5.6 Isothermal in re se of vis osity (proces in time) 13

5.7 Shelf l f e 13

5.8 Colour 13

5.9 Sof tenin temp rature 14

5.10 As content 14

5.1 Fi er content 14

5.12 Chlorine content 14

5.12.1 Total c lorine content of u saturated p lyesters an e oxide resin 14

5.12.2 Inorganic c lorine content of e oxide resin an gly id l esters 14

5.12.3 Easi y sa onif ia le c lorine content of e oxide resin an related

materials 14

5.13 Ten en y of cristal sation 14

5.14 Ep xide eq ivalent of e oxide resin 14

5.15 Content of isoc anate 14

5.16 Water content (Karl Fis her method) 14

5.17 Hy rox l value 15

5.17.1 Polyester resin 15

5.17.2 Resin other than p lyester 15

5.18 Acid value of p lyester resin 15

5.19 Amou t of double b n s of u saturated p lyester an acrylate resin 15

5.2 Acid an acid-an y ride content of acid-an y ride hardeners 15

5.21 Amine value 15

5.2 Pot l f e 15

5.2 1 General 15

5.2 2 Resinou comp u d f or ca le ac es ories 15

5.2 Gel time 16

5.2 1 Un aturated p lyester b sed comp u d 16

5.2 2 Phenol c resin b sed comp u d 16

5.2 3 Other comp u d 16

5.2 Exothermic temp rature rise 16

5.2 1 Un aturated p lyester b sed comp u d 16

5.2 2 Resinou comp u d f or ca le ac es ories 16

5.2 3 Other comp u d 17

5.2 Total volume s rin age of e oxide an u saturated p lyester b sed

comp u d 17

5.2 Curin in presen e of water 17

5.2 1 General 17

5.2 2 Ap aratu an materials 17

5.2 3 Pourin device 18

5.2 4 Proced re 18

5.2 5 Test re ort 18

5.2 Determination of the degre of c rin 18

5.2 Curin in thic layer an emis ion d rin c rin 18

5.2 1 General 18

5.2 2 Eq ipment 19

5.2 3 Test sp cimen 19

5.2 4 Proced re 19

6 Method of test f or c red reactive comp u d 2

6.1 General 2

6.2 Test sp cimen 2

6.2.1 General 2

6.2.2 Pre aration of the re ctive comp u d 2

6.2.3 Pre aration of test sp cimen 21

6.2.4 Typ an n mb r of test sp cimen 21

6.3 Den ity 21

6.4 Mec anical pro erties 21

6.4.1 Ten ie pro erties 21

6.4.2 Compres ive pro erties 21

6.4.3 Flex ral pro erties 2

6.4.4 Imp ct stren th 2

6.4.5 Hard es 2

6.5 Thermal pro erties 2

6.5.1 Bon stren th at elevated temp rature 2

6.5.2 Line r thermal exp n ion 2

6.5.3 Thermal con u tivity 2

6.5.4 Glas tran ition 2

6.5.5 Flamma i ty 23 6.5.6 Thermal s oc 23 6.5.7 Dry he t resistan e of resin for ca le ac es ories – Method of test 2

6.5.8 Wet he t resistan e of resin f or ca le ac es ories 2

6.5.9 L s of mas 26 6.5.10 Temp rature in ex 27 6.6 Chemical pro erties 27 6.6.1 Water a sorption 2

6.6.2 Ef f ect of l q id c emicals 2

6.6.3 Resistan e to mould growth 2

6.6.4 Water va our p rme bi ty 2

6.7 Electrical pro erties 28 6.7.1 Ef f ect of water immersion on volume resistivity 2

6.7.2 Dielectric dis ip tion factor ( an δ) an relative p rmit ivity (ε r ) 2

6.7.4 Pro f trac in in ex (PTI) 31

6.7.5 Electrolytic cor osion 31

An ex A (informative) He lth an saf ety 3

Bibl ogra h 3

Fig re 1 – Test a p ratu f or c rin in presen e of water test 32 Fig re 2 – Test set-up f or volume resistivity 3

Fig re 3 – Example of electrode ar an ement f or f lexible c red comp u d 3

Fig re 4 – Example of electrode ar an ement f or rigid c red comp u d 3

Ta le 1 – Con ition of the to side 19 Ta le 2 – Con ition of the b t om side 19 Ta le 3 – Con ition of the interior 2

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International Stan ard IEC 6 4 5-2 has b en pre ared by IEC tec nical commit e 15: Sol d

electrical in ulatin materials

This third edition can els an re laces the secon edition publ s ed in 19 8 This edition

con titutes a tec nical revision

This edition in lu es the f ol owin sig if i ant tec nical c an es with resp ct to the previou

edition:

a) Introd ction of test method related to IEC 6 4 5-3-8;

b) Ad itional an updated test method f or resin

The text of this stan ard is b sed on the fol owin doc ments:

Ful inf ormation on the votin f or the a proval of this stan ard can b f ou d in the re ort on

votin in icated in the a ove ta le

This publcation has b en draf ted in ac ordan e with the ISO/IEC Directives, Part 2

A l st of al p rts in the IEC 6 4 5 series, publ s ed u der the general title Re in b s d

re ctiv c mp u ds u ed for electric l n ulatio , can b fou d on the IEC we site

The commit e has decided that the contents of this publ cation wi remain u c an ed u ti

the sta i ty date in icated on the IEC we site u der "htp:/we store.iec.c " in the data

related to the sp cifi publ cation At this date, the publ cation wi b

This p rt of IEC 6 4 5 is one of a series whic de ls with solvent-fre resin b sed re ctive

comp u d an their comp nents u ed f or electrical in ulation

The series con ists of thre p rts:

– Part 1: Def i ition an general req irements (IEC 6 4 5-1);

– Part 2: Method of test (IEC 6 4 5-2);

– Part 3: Sp cif i ation for in ivid al materials (IEC 6 4 5-3)

RESIN BASED REACTIVE COMPOUNDS

Part 2: Methods of test

This p rt of IEC 6 4 5 sp cif ies method of test to b u ed f or testin resin b sed re ctive

comp u d , their comp nents an c red comp u d u ed for electrical in ulation

The f olowin doc ments, in whole or in p rt, are normatively ref eren ed in this doc ment an

are in isp n a le f or its a pl cation For dated ref eren es, only the edition cited a pl es For

u dated ref eren es, the latest edition of the referen ed doc ment (in lu in an

amen ments) a pl es

IEC 6 0 0 (al p rts), I ntern tio al Electrotec nic l Vo a ulary (avai a le at

ht p:/www.electro edia.org)

IEC 6 0 8-2-10:2 0 , En iro me tal testing – P art 2-10: Te ts – Te t J a d g idan e: M ould

growth

IEC 6 0 3:19 0, Methods of test for v lume re istivity a d s ra e re istivity of s lid

electric l n ulatin materials

ind ic s of s lid in ulatin materials

IEC 6 216 (al p rts), Ele tric l n ulatin materials – Th rmal e dura c pro ertie

IEC 6 2 3-1:19 8, Electric l stre gth of in ulatin materials – Te t methods – P art 1: Te ts

at p wer fe u n ie

IEC 6 2 0:19 9, Re omme ded methods for th determin tio of the p rmittivity a d

diele tric dis ip tio fa tor of electric l in ulatin materials at p wer, a dio a d radio

feq e cie includ in metre wa ele gths

IEC 6 2 6:2 12, Fluids for electrote h ic l a p c tio s – U nu ed mineral in ulatin oils for

tran formers a d switc g ar

IEC 6 4 6:2 0 , Electric l in ulatin materials – Determin tio of ele trolytic c ro io

c u ed b in ulatin materials – Te t methods

IEC 6 4 5-1:19 8, Re in b s d re ctiv c mp u ds u ed for electric l in ulation – P art 1:

Def i ition a d g n ral re uirements

IEC 6 4 5-3 (al p rts), Re in b s d re ctiv c mp u ds us d for electric l in ulatio –

P art 3: Sp cific tion for ind ividu l materials

IEC 6 4 5-3-8:2 13, Re in b s d re ctiv c mp u ds u ed for electric l ins latio – P art 3:

Sp cific tio s for ind ivid ual materials – Sh et 8: Re in for c ble a c s ories

IEC 6 6 5-1 -10:19 9, Fire h z rd testin – P art 1 -10: Te t flame – 50 W h riz ntal a d

v rtic l flame test methods

IEC 6 814:19 7, I ns latin li uids – Oil-impre n ted p p r a d pre s o rd – Determin tio

of water b a tomatic c ulometric Karl Fis h r titratio

IEC 610 3:19 1, Te t methods for the determin tio ofb nd stre gth of impre n tin a e ts

to a e amelled wire s b trate

IEC 610 9:2 10, In ulatin l q id – Sp cif i ation for u u ed s nthetic organic esters f or

electrical purp ses

ISO 3 :2 1 , Ru b r, v lc niz d or thermo lastic – Determinatio of ten ile stre s-strain

pro ertie

ISO 6 :2 0 , P lastic – Determin tio of water a s rption

ISO 7 (al p rts), P la tics a d e o ite – Determin tio of temp rature of deflectio u der

load

ISO 17 :2 10, P lastic – Determin tio of the efe ts of li uid c emic ls, in luding water

ISO 17 :2 10, P lastic – Determin tio of flex ural pro ertie

ISO 17 -1:2 10, P la tic – Determin tio of Ch rp imp ct pro ertie – P art 1: N

on-in trume ted imp ct test

ISO 17 -2:19 7, P lastic – Determin tion of Ch rp imp ct pro ertie – P art 2: I nstrume ted

imp ct te t

ISO 2 1, P lastic – Sta dard atmo p ere for c nd itio in a d testin

ISO 3 6:2 0 , P la tic – Th rmo la tic materials – Determin tion of Vic t s ftenin

temp rature (VST)

ISO 5 7 (al p rts), P lastic – Determin tio often ile pro ertie

ISO 5 4:19 2, P lastic – U ns turated p ly ster re in – Determin tio of re ctivity at

8 de re s C (c n e tion l method)

ISO 6 4:2 0 , P la tic – Determin tio of c mpre siv pro ertie

ISO 8 8:2 0 , P la tic a d e o ite – Determinatio of indentatio h rd ne s b me n of a

durometer (Sh re h rd ne s)

ISO 1 8 -1:2 12, P la tic – M eth ds for determining th d en ity of n n-c llular plastic –

P art 1: I mmersion meth d, li uid p k ometer method a d titratio meth d

ISO 1513:2 10, P aints a d v rnis e – Ex amin tio a d pre aratio of s mples for te tin

ISO 15 3:2 0 , P aints, v rnis e , p troleum a d related products – Determin tion of

flas p int – Clo ed c p e uili rium method

ISO 16 5:19 5, P lastic – Liq id re in – Determinatio of d en ity b the p k ometer method

ISO 2 3 -1:19 3, P la tic – Determin tio of h rd ne s – P art 1: Ba indentation meth d

ISO 21 4:19 6, P la tic – U ns turated p ly ster re in – Determinatio of p rtial a id v lu

a d total a id v lue

ISO 2 31:19 3, P aints a d v rnis e – Determin tion of flow time b u e of flow c p

ISO 2 3 :19 7, P lastic – U ns turated p ly ster re in – Mea ureme t of g l time at

25 degre s C

ISO 2 5 :19 7, P lastic – U ns turated p ly ster re ins – Determin tio of h droxyl v lue

ISO 2 5 :19 9, P la tic – Re in in the li uid state or a emulsio s or d is ersio s –

Determin tio of a p re t vis o ity b the Bro kfield te t method

ISO 2 9 :19 3, P etroleum products – Determinatio offla h a d fire p ints – Clev land o e

c p method

ISO 3 01:19 7, P lastic – Epox ide c mp u ds – Determin tio of e ox ide e uiv le t

ISO 3 19:19 3, P lastic – P olymers/e in in th liquid state or a emulsio s or d is ersio s –

Determin tio of vis o ity u in a rotatio al vis ometer with d efined s e r rate

ISO 3 51-1:19 7, P la tic – Determin tio of a h – P art 1: Ge eral meth ds

ISO 3 21:19 7, P la tic – U ns turated p lye ter a d e oxy re ins – Determin tio of o eral

v lume s rin a e

ISO 3 7 :19 3, P aints, v rnis e , p troleum a d related produ ts – Determin tion of

flas p int – Ra id e uili rium meth d

ISO 4 7 :19 8, P lastic – Ep x ide re in a d glycidyl e ters – Determinatio of inorg nic

ISO 4 9 , P lastic – Liq id e oxy re in – Determin tio of te de c to cry talliz

ISO 7 5 , P lastic lab ratory ware – Be k rs

ISO 9 9 :19 7, P la tic – P he o c re in – Determin tio of the g l time at a giv n

temp rature u in a tomatic a p ratus

ISO 1 3 7-2:19 9; P lastic – Differe tial s a nin c lorimetry (DSC) – P art 2: Determinatio

of glas tra sition temp rature

ISO 1 3 9-2:19 9, P lastics – Th rmome h nic l a aly is (TM A) – P art 2: Determin tio of

c eficie t of li e r thermal ex pa sio a d gla s tra sitio temp rature

ISO 1 3 9-3:2 0 , P lastics – Th rmome h nic l a alysis (TM A) – P art 3: Determin tio of

p n tratio temp rature

ISO 14 9 :2 0 , P lastic – P olyuretha e raw materials – Determin tio of is c a ate c nte t

ISO 15 2 :2 0 , P aints, v rnis e a d raw materials for p ints a d v rnis e – Samp n

ratio of the a solute p rmitivity to the electric con tant

Note 1 to e try: In pra tic l e gin erin , it is u u l to emplo th term ‘p rmitivity’ wh n referin to relativ

p rmitivity

4 General notes on methods of test

4.1 Preparation a d con itionin

Unles otherwise sp cif ied in the relevant sp cifi ation stan ard or in the method of test, al

tests s al b car ied out at atmospheric con ition in a temp rature ran e of b twe n 21 °C

an 2 °C an a relative h midity ran e of b tween 4 % an 7 % Bef ore me s rements

are made, the sample or test sp cimen s al b pre-con itioned u der these atmospheric

con ition for a time s ff icient to al ow the sample or the test sp cimen to re c sta i ty For

takin samples in l q id or p ste form, ISO 15 2 s al b a pl ed For pre aration of s c

samples f or testin , ISO 1513 s al b a pl ed

NOT For d finitio s of terms for sta d rd atmo p ere , s e ISO 5 8 Th te t atmo p ere a s e if i d a o e

d e n t c mply with a y of th two sta d rd atmo p ere a s e if i d in ISO 2 1 b t c v rs b th ra g s

in lu iv of th ir tolera c s

Normal y, al req irements for a method of test are given in the des ription, an diagrams are

inten ed only to i u trate one p s ible ar an ement f or con u tin the test In case of

in on isten ies b twe n this stan ard an the sp cif i ation s e ts of the IEC 6 4 5-3 series,

the lat er s al prevai When another stan ard is in oked f or a test method, referen e to that

stan ard s al b in lu ed in the re ort

4.2 Se ue c of te ts

To avoid u neces ary ef f orts, tests s al b car ied out on the samples in the f olowin

1) tests on in ivid al comp nents prior to mixin ;

2) tests on re ctive comp u d ju t af ter mixin (re d to u e);

3) tests on c red comp u d;

4) tests on c red comp u d af ter pre tre tment ( hermal, h midity, water etc.)

If the sample u der test f ai s a test the f olowin tests may b come o solete

4.3 Te t rep rt

If not otherwise sp cif ied, the test re ort s al in lu e the fol owin data:

1) resin desig ation an identif i ation;

2) lot n mb r or other identif i ation;

3) con rmation of markin an la el n ac ordin to the material saf ety data s e t (MSDS);

4) test res lts;

5) major test p rameters, in lu in con itionin an cal bration, if an ;

6) proces in con ition u ed to re ctive comp u d;

7) co y of the tec nical data s e t (TDS) an MSDS

5 Methods of test f or reactive c mpounds a d their compone ts

5.1 Fla h point

For f las p int temp ratures of 7 °C an a ove, the method given in ISO 2 9 s al b u ed

For f las p int temp ratures b low 7 °C, the method given in ISO 15 3 s al b u ed with

an of the closed-c p a p ratu as des rib d in An ex A of ISO 15 3:2 0 ISO 15 3 s al

b re d in conju ction with ISO 3 7 Two me s rements s al b made on two se arate

samples, an the two res lts of the f las p int s al b re orted alon with referen e to the

stan ard a pl ed

5.2 De sity

The method given in ISO 16 5 s al b u ed Two me s rements s al b made, an the two

res lts of the den ity s al b re orted

5.3 Vis osity

The vis osity s al b determined with a s ita le device at (2 ± 0,5) °C if not otherwise

sp cif ied If a rotatin typ of device is u ed, it s al b in ac ordan e with ISO 2 5

(Bro k eld typ ) or with ISO 3 19 (a typ workin at a def i ed s e r rate) If an ef f lu typ of

eq ipment is u ed, the method of test an the f low c p s al b in ac ordan e with ISO 2 31

Two me s rements s al b made, an the two res lts of the vis osity s al b re orted,

alon with ref eren e to the stan ard a pl ed

5.4 Vis osity af ter storing at ele ate temperature

This method is not a pl ca le to one-comp nent s stems or comp nents containin hardener

If not otherwise sp cified, a sample of s f f icient amou t is stored f or (2 ± 0,5) h at a

temp rature of (10 ± 3) °C in a se led container Af ter co l n down to ro m temp rature the

vis osity is me s red ac ordin to 5.3 The in re se of vis osity is calc lated u in the

f ol owin eq ation:

In re se of vis osity in % = (η

2– η

= d namic vis osity af ter storin

5.5 Conte t of volati e orga ic compone ts

This method is not a pl ca le to one-comp nent s stems or comp nents containin hardener

If not otherwise sp cif ied, the test s al b car ied out in the f ol owin way:

The mas of an empty weig in b tle (a out 8 mm × 3 mm), is taken to 0,0 1 g (m

1 A

mas of 0,4 g to 0,5 g resin (m

2) is weig ed to 0,0 1 g into the weig in b t le (wel closed

d rin weig in ) Some dro s of toluene are ad ed to di ute the resin The l q id is spre d on

the f lo r of the weig in b t le with a sl g t twist

The o en weig in b tle is placed into an oven with f orced air circ lation for at le st 2 h at

(1 0 ± 2) °C Af ter co l n down to ro m temp rature in a desic ator the weig in b tle is

weig ed again to 0,0 1 g (m

3)

Volatie organic comp nents = 10 × (m

2– (m

3– m

1) / m

2

5.6 Isothermal incre s of vis osity (proc s in time)

This method is desig ed f or PUR an EP resin For UP resin gel time s al b u ed If not

otherwise sp cif ied, the test s al b car ied out in the fol owin way:

Al comp nents an eq ipment s al b at ro m temp rature The comp nents of the resin are

mixed ac ordin to the man facturer’s in tru tion The mixin proced re s al not take more

than 3 min The time me s rement starts af ter ad in an mixin of the last comp nent Af ter

10 min the f irst vis osity me s rement is taken as the initial value The me s rement is

re e ted u ti the sp cif ied maximum vis osity is re c ed The time b twe n the initial value

an the maximum value is re orted as proces in time

5.7 Shelf l f e

The s elf lfe s al b determined by me s rement of the c an e in a sp cif ied c aracteristic

pro erty af ter a certain storage time an temp rature Exp rien e has s own that vis osity

ac ordin to 5.3 an gel time ac ordin to 5.2 are a pro riate c aracteristic To as es

s elf l f e, vis osity an /or gel time s al b determined ac ordin to 5.3 an /or 5.2

resp ctively, at a temp rature an with an en -p int as agre d up n b twe n s p ler an

purc aser Two me s rements s al b made on b th fres material an on material stored

f or a time an at a temp rature as agre d b twe n s p ler an purc aser The two res lts of

s elf l fe s al b re orted, alon with referen e to the stan ard a pl ed The res lts s al

contain the vis osity an /or the gel time b f ore an af ter storin , the storin time an

temp rature an the test temp rature

5.8 Colour

The method given in ISO 6 71 s al b u ed Two me s rements s al b made, an the two

res lts of colour s al b re orted alon with ref eren e to the stan ard a pl ed

5.9 Sof e ing temperature

The method given in ISO 3 6 or ISO 4 2 s al b u ed Two me s rements s al b made,

an the two res lts of sof tenin temp rature s al b re orted alon with referen e to the

stan ard a pl ed

5.10 As conte t

The method given in ISO 3 51-1, method A, s al b u ed Two me s rements s al b

made, an the two res lts of the as content s al b re orted

5.1 Fi er conte t

To b agre d b twe n s p l er an purc aser

5.12 Chlorine conte t

5.12.1 Total c lorine conte t of un aturate poly sters a d epoxide re ins

The method given in ISO 4 15 s al b u ed Two me s rements s al b made, an the two

res lts of the total c lorine content s al b re orted

5.12.2 Inorg nic c lorine conte t of epoxide re in a d gly idyl e ters

The method given in ISO 4 7 s al b u ed Two me s rements s al b made, an the two

res lts of the inorganic c lorine content s al b re orted

5.12.3 Ea i y s p nif iable c lorin conte t of epoxid re ins a d relate materials

The method given in ISO 4 8 s al b u ed Two me s rements s al b made, an the two

res lts of the sa onif ia le c lorine content s al b re orted

The method given in ISO 3 01 s al b u ed Two me s rements s al b made, an the two

res lts of the e oxide eq ivalent s al b re orted

5.15 Conte t of isoc a ate

This method is a plca le to p ly rethane hardeners only

The method given in ISO 14 9 s al b u ed Two me s rements s al b made, an the

two res lts s al b re orted

5.16 Water conte t (Karl Fis her method)

The method given in IEC 6 814 s al b u ed Two me s rements s al b made, an the two

res lts of the water content s al b re orted

5.17 Hy rox l v lue

5.17.1 Poly ster re ins

The method given in ISO 2 5 s al b u ed Two me s rements s al b made, an the two

res lts of the h drox l value s al b re orted

5.17.2 Resins other th n poly ster

To b agre d b twe n s p l er an purc aser

5.18 Acid v lue of poly ster re ins

The method given in ISO 21 4 s al b u ed Two me s rements s al b made, an the two

res lts of the acid value s al b re orted

5.19 Amount of double b nds of u s turate poly ster a d a rylate re ins

To b agre d b twe n s p l er an purc aser

5.2 Acid a d a id-a hy ride conte t of a id-a hy ride harde ers

The method given in ISO 21 4 s al b u ed f or acid content The method given in ISO 7 2

s al b u ed f or an y ride content Two me s rements s al b made, an the two res lts of

the acid value an /or an y ride content s al b re orted

The time whic a p rtic lar method req ires to ac ieve a vis osity of 5 Pas is me s red

The vis osity can b determined in an vis osimeter

5.2 2 Resinou compounds f or c ble a c s orie

The b aker an a stan ard man facturer p c s al b stored in an en ironmental c amb r

f or 2 h at the temp rature sp cif ied with a toleran e of

20

−K

5.2 2.3 Proc dure

The comp nents s al b removed from the en ironmental c amb r an start mixin

immediately ac ordin to the s p ler´s in tru tion The time starts at the commen ement of

mixin the comp nents

Remove the b aker f rom the en ironmental c amb r, an p ur the mixed comp u d into the

b aker up to the mark previou ly made

5.2 2.4 Te t report

The test re ort s al in lu e the fol owin inf ormation:

– the time from the start of mixin u ti a vis osity of 5 Pas is re c ed is determined The

p t l fe s al b rou ded to the ne rest of a secon ;

– the vis osimeter, test p rameters an s stem u ed (e.g spin le size, rotation sp ed etc.)

The vis osimeter with the s stem u ed s al b cal brated at 5 Pas

5.2 Gel time

Gel time is the p riod of time af ter whic the re ctive comp u d re c es the gel state The

method given in ISO 2 3 s al b u ed at a test temp rature as agre d up n b twe n

s p l er an purc aser Two me s rements s al b made, an the two res lts of the gel time

s al b re orted alon with the test temp rature

5.2 Exothermic temperature ris

The method given in ISO 5 4 s al b u ed Two me s rements s al b made, an the two

res lts of the exothermic temp rature rise s al b re orted

5.2 2 Re inou compounds f or c ble a c s orie

5.2 2.1 Apparatus a d materials

Eq ipment to b u ed:

• b aker in ac ordan e with ISO 7 5 , p lyeth lene, p lypro ylene or glas with

dimen ion : 7 mm to 10 mm diameter an 7 mm to 13 mm hig ;

• thermocouple made with twisted wires;

• temp rature recorder;

• time me s rement device

5.2 2.2 Preparation of th s mple: Te t at 2 °C

The b aker s al b marked to a volume of (3 0 ± 2 ) ml The b aker an a s f ficient amou t

of resinou comp u d comp nents (pre are 4 0 ml to 7 0 ml of the comp u d) s al b

stored for 2 h at (2 ± 2) °C

The comp nents s al b mixed ac ordin to man facturer’s in tru tion The time starts at

the commen ement of mixin the comp nents

The mixed comp nents s al b p ured into the b aker up to the mark previou ly made The

thermocouple s al b in erted vertical y in the centre of the mixture to a de th of (2 ± 5) mm

u der the comp u d s rface an held in p sition by a s ita le device (e.g rin -stan )

5.2 2.3 Proc d re

The temp rature in re se s al b c ec ed an the maximum temp rature rise an the time

to p ak recorded The test is f i is ed af ter the hig est temp rature has b en re c ed an the

temp rature starts to dro sig if i antly

NOT For e s of te tin , th temp rature c n b re ord d a a c rv

5.2 2.4 Te t rep rt

The maximum temp rature re c ed (rou ded to the ne rest °C) an the time to p ak

(rou ded to the ne rest min) s al b re orted

5.2 3 Other comp und

Method of test req ired, but not avaia le

5.2 Total volume s rink ge of ep xide a d u s turate poly ster ba e compoun s

The method given in ISO 3 21 s al b u ed Two me s rements s al b made, an the two

res lts of the total volume s rin age s al b re orted The re ort s al contain the test

temp rature, the den ity of the comp u d at test temp rature, an the den ity of the

sp cimen made of the c red comp u d

5.2 Curing in pre e c of water

5.2 1 Ge eral

This test a ples only to p ly rethane resinou comp u d f or ca le ac es ories This test is

to me s re the gas evolution an the ph sical stru ture c an e when the p ly rethane

resinou comp u d c res in presen e of water Void cre ted by generation of gas in the

resin may le d to electrical bre k down

The den ity of the c red resin mentioned in the tec nical data s e t s al b > 1,0 g/cm

5.2 3 Pouring de ic

Use a fun el with a ca a i ty to f il the b t le within 3 s to 6 s at ro m temp rature

5.2 4 Proc dure

The test a p ratu s al b as embled as s own in Fig re 1 The grad ated c l n er s al b

completely filed with water f rom the bu ket The s uirt b t le s al then b s rewed of f f rom

the s uirt ca , marked with 2 mark at 10 ml an 2 0 ml resp ctively an f iled up to the

10 ml mark with de-mineral zed water

The bu ket, s uirt b tle an resinou comp u d lef t in its original p c agin s al b al owed

to re c ro m temp rature The comp u d p c age s al b o ened, the sto watc started

an the comp nents mixed ac ordin to the man f acturer's in tru tion The mixed comp u d

is p ured into the closed f un el The f un el s al b emptied immediately into the s uirt b t le

u ti the water level re c es the 2 0 ml mark Care s al b taken to p ur in the centre of the

b t le an avoid tou hin the in er b t le wal

Within the next 3 s, s rew the s rew ca onto the s uirt b tle u ti the con ection is

gastig t, takin care not to def orm the f lexible tubin or s uirt b t le Durin the con ection

an s bseq ent c rin the f lexible tubin an s uirt b t le s al not be def ormed; if the tubin

an /or the b t le b come def ormed, restart the test The comp u d s al b al owed to c re

f or the p t l f e sp cif ied by the man f acturer One hour after the p t lf e has ela sed, the

volume of gas f il in the grad ated c l n er s al b re d The water s al then b p ured out

of the s uirt b tle Af ter hardenin of the resin at ro m temp rature f or 2 h, the sp cimen

s al b c t throu h the centre of the b tle an the ph sical stru ture examined f or the

presen e of bl sters or crac s in the comp u d

5.2 5 Te t rep rt

The fol owin p rameters s al b me s red an re orted:

• gas volume;

• ph sical stru ture/presen e of blsters or crac s or bub les an /or in lu ion ;

• picture of the c t s rface of the comp u d with s ale

5.2 Determination of the d gre of c ring

The re ction enthalpie of the u c red resin is determined by u in DSC An amou t of 10 mg

has b en fou d adeq ate

If not otherwise sp cif ied, a out 10 g of resin is c red u der con ition ( emp rature an

time) as agre d b twe n s p l er an purc aser The resid al enthalpie is determined u in a

= enthalpie of u c red resin

5.2 Curing in thic la er a d emis ions during c ring

5.2 1 Ge eral

This test is desig ed f or the examination of c red impreg atin materials Curin in thic layer

is expres ed by the con ition af ter c rin of the to side, b tom side an interior of the

sp cimen The determination of emis ion d rin the c rin proces is also p rt of this

– an oven with f orced air circ lation an with a minimum rate of 8 fres air c an es p r

hour The oven s al b of the typ an desig u ed f or dryin an /or c rin sp cimen ;

– a b lan e with an ac urac of 0,01 g

5.2 3 Te t spe ime

A piece of aluminium f oi s al b cle ned by adeq ate me n an s al b folded arou d the

f ormer to prod ce a s uare mould of a out 4 mm side len th The s uare mould s al b

dried at (1 0 ± 5) °C f or (10 ± 1) min, co led down an stored in a desic ator

The mas of the s uare mould s al b weig ed to 0,01 g (m

1 A resin sample with a mas

b twe n 9,9 g an of 10,10 g s al b weig ed to 0,01 g into the mould (m

2)

The sp cimen s al b c red at a temp rature an for a time as agre d b twe n s p l er an

purc aser The sp cimen s al b co led down to ro m temp rature in a desic ator an the

3) Subseq ently the aluminium foi is removed

5.2 4 Proc dure

5.2 4.1 De cription of the spe ime

The sp cimen s al b as es ed by des ription of the con ition of its to side, b t om side

an interior, expres ed ac ordin to statements f or vis al a p aran e an for tac ines by