INTERNATIONAL STANDARD IEC 60454 2 Third ed i tion 2007 06 Pressure sensitive adhesive tapes for electrical purposes – Part 2 Methods of test Reference number I EC 60454 2 2007(E) THIS PUBLICATION IS[.]
Trang 2THIS PUBLICATION IS COPYRIGHT PROT CTED
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Trang 3Commis io Ele tote h iq e Intern tio ale
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Trang 4CONTENTS
FOREWORD 5
1 Sco e 7
2 Normative referen es 7
3 Con itionin an sp cimen pre aration 8
4 Determination of thic nes 8
4.1 Test a p ratu 8
4.2 Test sp cimen 8
4.3 Proced re 8
4.4 Res lts 8
5 Determination of width 8
5.1 Method A 8
5.2 Method B 9
5.3 Method C 9
6 Determination of rol len th 10 6.1 Prin iple .10 6.2 Method A – Me s rement of turn method 10 6.3 Method B – L n th sen or method 1
7 Cor osion- elated pro erties 1
7.1 General .1
7.2 Pre aration of water extract for pH an con u tivity determination 1
7.3 Determination of pH value of water extract .12
7.4 Determination of con u tivity of water extract 12
7.5 Detection of cor osive s lfur 13
7.6 In ulation resistan e method 14
7.7 Vis al method .14
7.8 Wire ten i e stren th method 14
8 Ten i e stren th an elon ation at bre k .15
8.1 Ap aratu 15
8.2 Test sp cimen 15
8.3 Proced re .15
8.4 Res lts 15
9 L w-temp rature pro erties .15
9.1 Prin iple .15
9.2 Test sp cimen 16
9.3 Proced re .16
9.4 Flexibi ty 16
9.5 Electric stren th 16
9.6 Res lts 16
10 Resistan e to p netration at elevated temp ratures 17
10.1 Ap aratu 17
10.2 Test sp cimen 17
10.3 Proced re .17
10.4 Res lts 17
Trang 51 1 Prin iple .17
1 2 Materials 18
1 3 Ap aratu 18
1 4 Test samples an test pieces .19
1 5 Proced re .2
1 6 Expres ion of es lts 2
12 Ad esion to b c in at low temp ratures .21
12.1 Test sp cimen 21
12.2 Proced re .21
12.3 Res lts 21
13 She r ad esion to b c in after l q id immersion .21
13.1 Ap aratu 21
13.2 Test sp cimen 21
13.3 Proced re .2
13.4 Res lts 2
14 Curin pro erties of thermosetin ad esive ta es .2
14.1 Bon se aration d rin thermal tre tment (ad esive to b c in ) .2
14.2 Bon se aration after thermal tre tment (ad esion to b c in ) 2
15 Flaggin tests .2
15.1 Prin iple .2
15.2 Ap aratu 2
15.3 Test sp cimen 2
15.4 Pre aration of sp cimen f or test .2
15.5 Test con ition 2
15.6 Res lts 2
16 Water va or p rme bi ty 2
16.1 Ap aratu 2
16.2 Test sp cimen 2
16.3 Proced re .2
16.4 Res lts 2
17 Electric stren th .2
17.1 General .2
17.2 Test sp cimen 2
17.3 Proced re .2
17.4 Res lts 2
18 Electric stren th after h mid con itionin 2
19 Resistan e to flame pro agation 2
19.1 Prin iple .2
19.2 Ap aratu 2
19.3 Test sp cimen 2
19.4 Proced re .2
19.5 Res lts 2
2 Flame test .2
2 1 Prin iple .2
2 2 Ap aratu 2
2 3 Pre aration of test specimen 2
2 4 Proced re .2
Trang 621 Thermal en uran e 2
21.1 Determination of thermal en uran e (b sed on IEC 6 216-1 an IEC 6 216-2) 2
21.2 Voltage bre k own 3
21.3 L s of mas 31
An ex A (normative) Rol ers to b u ed in variou tests 4
Bibl ogra h 41
Fig re 1 – Me s rin device for determination of rol len th of ta e (me s rement of turn method) 3
Fig re 2 – Me s rin device f or determination of rol len th of ta e (len th sen or method) .3
Fig re 3 – Seq en e of b n s 3
Fig re 4 – Dielectric stren th test in water 3
Fig re 5 – Sketc of p netration tester .3
Fig re 6 – Ste l test plate .3
Fig re 7 – Ar an ement for strip in the ta e f rom the plate 3
Fig re 8 – Flag in test – Pre aration of test sp cimen 3
Fig re 9 – Drau ht protection device 3
Fig re 9 – Use of Bu sen burner an sl din plate with drau ht protection device .3
Fig re 9 – Flame test en los res 3
Fig re 10 – Es ential dimen ion f or f lame test (pro ortion exag erated f or clarity of detai s) 3
Fig re 1 – Dimen ion of wed e .3
Ta le 1 – Con itionin for low temp rature pro erties 16
Trang 7INTERNATIONAL ELECTROTECHNICAL COMMISSION
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p te t rig ts IEC s al n t b h ld re p n ible f or id ntif yin a y or al s c p te t rig ts
International Stan ard IEC 6 4 4-2 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 4, an con titutes
a tec nical revision This revision in lu es improved text regardin the f lame test (Clau e 2 ),
the improved text on ad esion (Clau e 1 ) an a new Fig res 9 an 9
The text of this stan ard is b sed on the f ol owin doc ments:
Ful inf ormation on the votin for the a proval of this stan ard can b fou d in the re ort on
votin in icated in the a ove ta le
Trang 8This publcation has b en drafted in ac ordan e with the ISO/IEC Directives, Part 2.
A lst of al the p rts in the IEC 6 4 4 series, u der the general title P res ure-se sitiv
ad hesiv t ap s for electric l p rp ses, can b fou d on the IEC we site
The commite has decided that the contents of this publcation wi remain u c an ed u ti
the maintenan e res lt date in icated on the IEC we site u der "htp:/we store.iec.c " in
the data related to the sp cific publ cation At this date, the publ cation wi b
Trang 9PRESSURE-SENSITIVE A DHESIVE TA PES
The f ol owin ref eren ed doc ments are in isp n a le for the a pl cation of this doc ment
For dated ref eren es, only the edition cited a pl es For u dated referen es, the latest edition
of the referen ed doc ment (in ludin an amen ments) a pl es
IEC 6 216-1:2 01, Electric l insulatin materials – P ro ert ies ofth rmal e d ura c – P art 1:
Ag ing pro edures a d e alu tion of test results
IEC 6 216-2:2 0 , Elect ric l insulat in materials – Th rmal e dura c pro erties – P art 2:
Determinat io of thermal e dura c pro erties of electric l insulat in materials – Ch ic of
test criteria
IEC 6 216-3:2 0 , Elect ric l insulat in materials – Th rmal e dura c pro erties – P art 3:
I nstru t io s for c lc latin th rmal e d ura c c ara t eristics
IEC 6 2 3-1:19 8, Electric l stre gth of insulating materials – Test meth ds – P art 1: Tests
at p wer fe u n ies
IEC 6 4 6:2 0 , Test met hods for d et ermining electrolytic c r osion with insul at ing materials
IEC 6 4 4-3 (al p rts), P res ure-se sitiv ad hesive tap s for electric l p rp ses – P art 3:
Sp ci fic tions for ind ivid ual materials
IEC 6 5 9:19 7, Methods of test for the d eterminat ion of ionic impurities in electric l
insulating materials b e tra t io with liquids
ISO 3 3: 19 6, L b ratory glas ware – Interc a g a le c nic l gro nd joints
ISO 5 7-3:19 5, Plastics – Determinatio of te sil pro erties – P art 3: Test c nd itions for
films a d sh ets
ISO 219 :19 1, Ind ustrial scre ns – Wo e wire clot h, p rorated plac a d ele troformed
sh et – Design tio a d n minal sizes of o e ings
ISO 3 71:2 0 , Tex t iles – Determination of pH of th a u o s ex tra t
ISO 3 9 :19 6, Vernier c llipers re d ing to 0,1 a d 0,05 mm
ISO 10 9 :19 8, Plastics – Fire tests – Sta dard i gnitio so rc s
EN 19 9:2 0 , Self-ad hesiv tap s − Determination of p el ad hesion pro erties (The p el
ad esion test method of Clau e 1 is b sed on test method A of EN 19 9:2 0 This stan ard
is the res lt of the harmonisation of AFERA 5 01 an PSTC-1,2,3 an 4, ASTM 3 3 /D,
ASTM 3 3 /M an agre d by JATMA.)
NOT EN: Euro e n Norm (Euro e) − AF RA: As o iatio d s f abric nts e ro é n d ru a s a to-a h sifs −
PS C: Pre s re s n itiv ta e c u ci (USA) − AS M: Americ n s ciety for te tin a d materials (USA) − JATMA:
Trang 103 Conditioning and specimen preparation
Unles otherwise sp cified, rols are to b con itioned for at le st 2 h at (2 ± 2) °C an
(5 ± 5) % relative h midity an al test proced res are to b car ied out in this atmosphere
Remove an dis ard the thre outer turn b fore takin any test sp cimen f rom the
con itioned rol Sp cimen pre aration s al b done with care in a cle n en ironment
Sp cific sp cimen pre aration detai s wi b in lu ed with the a pro riate test method
Further con itionin of test sp cimen may b req ired
either the weig t or the pres ure fo t spin le, wi prod ce a deflection of the f ame not
gre ter than 0,0 2 mm (as in icated on the thic nes gau e) The pres ure exerted on the
sp cimen s al b (5 ± 5) kPa
The ac urac of the thic nes gau e s al b c ec ed f req ently by me n of a set of ste l
gau es; the me s rin er ors of the thic nes gau e s al not ex e d 0,0 5 mm
4.2 Te t spe ime s
Five sp cimen , at le st 7 mm lon , are c t f om the rol at intervals not les than 3 0 mm
The sp cimen s al b al owed to relax for at le st 5 min
4.3 Proc d re
Place the test sp cimen b twe n the jaws of the thic nes gau e in contact with the fixed
f oot Take care to en ure that no air bub les are tra p d L wer the movin pres ure f oot
5.1.2 A sp cimen of ta e, at le st 4 0 mm lon , is removed f rom the rol an placed
ad esive side up on a smo th f lat s race The sp cimen s al b al owed to relax f or at le st
Trang 11The width of the relaxed sp cimen is me s red with the ad esive side down to the ne rest
0,5 mm u in the rule Ten me s rements s al b made, u iformly distributed alon the
len th of the sp cimen The width s al b the me n value of the ten me s rements
5.2 Method B
5.2.1 Principle
The ad esive ta e rol is placed b twe n the jaws of a p ir of cal p rs
The width is the p rp n ic lar distan e, expres ed in mi imetres, b twe n the o p site c t
ed es of the test sp cimen of ad esive ta e This method may not b s ita le f or sl t or
rewou d rol s if the turn are not exactly coin ident
Hold the rol so that the c t ed es are in a vertical plane If the outer turn of the ta e on the
rol have cru hed or damaged c t ed es, these s ould b dis arded prior to me s rement
Hold the cal p rs so that the s ale s af t is in the horizontal plane
Caref ul y close the cal p r jaws so as to ju t tou h the c t ed es of the outer turn of the rol
of ta e, takin the fol owin precaution :
a) do not cru h the rol ed es;
b) en ure that cal p r jaws are p rp n ic lar to c t ed es
Me s re the rol width in mi imetres to the ne rest 0,1 mm
Car y out two further me s rements at eq al y sp ced intervals arou d the circ mf eren e
5.2.6 Re ults
Re ort the me n value as the width of ta e in mi imetres
5.3 Method C
This method wi only b u ed where a very hig degre of ac urac is req ired
Use a travel n micros o e with a vernier control on one axis whic has an ac urac
of 0,0 1 mm Usin the sp cimen o tained an relaxed as in 5.1.2, me s re the width to the
ne rest 0,01 mm, takin ten me s rements The width of the ta e is taken as the me n value
in mi metres
Trang 126 Determination of rol length
6.1 Principle
The len th can b calc lated f rom a me s rement of the n mb r of turn of ta e on the re l
an a me s rement of the outer circ mf eren e of the ta e an the outer circ mferen e of the
core Alternatively, len th can b me s red directly by u in a len th sen or that in lu es a
rotatin whe l that revolves on the rol of ta e as it is b in u wou d
For non-exten ible ta es the len th me s red by these method wi b the same as the
a) A me s rin device ca a le of cou tin b th whole revolution an p rt revolution ,
contin ou ly driven by a spin le The spin le has a s ita le loc in device by me n of
whic a conical s aft can b q ic ly fit ed to s it the internal diameters of cores for the
rol s of ta e (F r example, for a nominal 2 mm internal diameter core the conical s af t
wi give a 2 ,5 mm diameter to 2 ,5 mm diameter over a s aft len th of 5 mm
Alternative size conical s afts would b ne ded f or ta es on a core with sig ificantly
dif f erent nominal diameters, s c as 7 mm.)
b) Me s rin ta e A nar ow, flexible, ste l ta e (6 mm or nar ower) cal brated in mi metres
Mou t the rol on the conical s aft of the cou ter Set the cou ter to zero an pul the ta e
f om the rol in a direction p rp n ic lar to the spin le Remove al the ta e f rom the core an
record the n mb r of revolution ( o the ne rest tenth of a revolution) as re d f om the
cou ter when the last turn of ta e has left the core: N turn
=(met res)
orCC
NL
+
If the len th of ta e in contact with the core is not to b in lu ed in the total len th, then
N(m etres)
oor
CCC
+
=
Trang 136.3 Method B – Le gth s nsor method
6.3.1 Apparatus (s e Figure 2)
A me s rin device ca a le of me s rin the len th of a rol of ta e in metres by u in a
cal brated rotatin whe l whic rol s, with low torq e an contact pres ure, again t the
circ mferen e of the ta e as it u win s The a p ratu in lu es a spin le for mou tin the
ta e, a len th sen or, a re d-out s stem an a rotatin win -up rol that can b u ed to
u win , either man al y or automatical y, the rol of ta e
6.3.2 Te t spe ime
One rol of ta e
6.3.3 Proc dure
Mou t the rol on the s aft adjacent to the sen or Position the rol an len th sen or so that
the sen or is in contact with the circ mf eren e of rol an the le din en of the rol is directly
u der the sen or Set the sen or to zero an man al y pul the le din ed e of the ta e an
f i it to the win -up rol At the start of u win in , en ure that the len th sen or maintain
go d contact with the rol an do s not sl p or bin On completion of u win in , take the
re din of the len th sen or
6.3.4 Re ults
Re ort the len th in metres as recorded on the re d-out
The req irements f or in ivid al prod cts are given in IEC 6 4 4-3 The test method wi b
selected f om those given in this p rt When electrolytic cor osion is of sig ifican e, i.e when
f i e wire a proximately 1 mm in diameter or finer is u ed, the determination is car ied out
Trang 14En ure that the sample rol an the material taken theref rom are not contaminated by the
atmosphere, p rtic larly the atmosphere of a c emical la oratory, or by contact with b re
han s, an that the implements u ed f or c tin or han l n the test piece are c emical y
cle n
7.2.2 Te t pie e
Cut strips of ta e, e c a proximately 2 mm × 6 mm, f om the sample rol
If a strip is f olded, it s al b folded ad esive s race outward
7.2.3 Method
Use water havin a con u tivity not gre ter than 0,2 mS/m Make a blan test of the
extraction ves el b fore e c extraction, an if the res ltant con u tivity ex e d 0,2 mS/m
re e t the test with the same extraction ves el Chan e the ves el if the secon res lt also
ex e d this value
Pre are the extract by putin a ratio of 1 g of ta e to 10 ml of water into a b rosi cate glas
(hig c emical resistan e glas ) or q artz f las f ited with a reflu con en er of the same
q al ty glas or q artz Use an a p ratu with interc an e ble conical grou d-glas joints
complyin with the req irements of ISO 3 3
Boi the water gently for 6 min, ex e t in the case of cel ulose acetate fi m ta e f or whic the
p riod s ould b 10 min, takin care that the material is not c ar ed Al ow it to co l as ra idly
as p s ible, takin precaution again t admis ion of carb n dioxide (e.g CO
2tra )
7.2.4 Qua tity
Suff i ient q antity of extracts s ould b pre ared so that pH an con u tivity are me s red
on se arate p rtion of the extracts
7.3 Determination of pH value of water e tra t
Determine the pH value at a temp rature of (2 ± 2) °C ac ordin to 8.2 of ISO 3 71
7.4 Determination of conductivity of water e tra t
7.4.1 Apparatus
The f ol owin a p ratu is req ired
7.4.1.1 A s ita le con u tivity cel whic may con ist of two inert electrodes, e.g platinized
platin m maintained at a f i ed distan e a art an adeq ately in ulated f rom e c other
7.4.1.2 A me s rin in trument ca a le of me s rin con u tan e or admit an e with an
ac urac of 5 % an a minimum re din of 1 μS in the f req en y ran e 5 Hz to 3 0 0 Hz at
a voltage not ex e din 10 V; alternatively, resistan e may b me s red to the same
ac urac
NOT 1 It is imp rta t th t a y in ulatio immers d in th te t lq id s o ld n t b water a s rb nt or s bje t to
c ntamin tio b a u o s ele trolyte
NOT 2 Th c n u tivity c l s o ld b e s to cle n a d fe f rom re e s s wh re imp ritie c n b retain d
NOT 3 Care s o ld b ta e to e s re th t th ele tro e d n t b c me p lariz d
Trang 157.4.2 Determination of ele tric l conductivity
7.4.2.2 Determination of the conductivity of th bla k
Af ter thorou hly cle nin the con u tivity cel with water as sp cified in 7.2.3, f il it with water
o tained as a res lt of the blan extraction test, an me s re its con u tivity G
1
in mS/m at
(2 ± 2) °C The con u tivity of the blan in mS/m is then KG
1
7.4.2.3 Determination of the con uctivity of th water e tra t
Thorou hly rin e the con u tivity cel with the extract to b tested, an then f il with the
extract Adju t the temp rature to (2 ± 2) °C, maintain f or 15 min an then me s re the
con u tivity G
2
in mS/m at that temp rature
The con u tivity of the water extract in mS/m is then calc lated as K(G
2–G
1
NOT For mo t p rp s s, wh re it is n t c n e ie t to te t th water e tra t at (2 ± 2) °C, it is s ff i ie tly
a c rate to a ply th folowin c re tio :
)2(0,01C2at
t y
Co d c t iv i
−+
=
°
tG
wh re G is th c n u tivity o tain d wh nth me s reme t is ma e at t C
7.4.3 Re ults
Expres the con u tivity in mS/m at a temp rature of 2 °C
7.5 Dete tion of cor osiv s lfur
7.5.1 Te t spe ime s
Cut two test sp cimen , e c 10 mm lon , f rom the sample rol
7.5.2 Apparatus
Thre smo th co p r rod are req ired, e c a proximately 6 mm in diameter an 7 mm
lon , cle ned an p l s ed with water an si con carbide p wder size 9 μm to 12 μm an
wip d cle n an dried with cot on wo l or fiter p p r Final y the rod are was ed with a
volati e s lf ur f re solvent, s c as dieth l ether, an al owed to dry
7.5.3 Method
Han le the co p r rod with cle n, dry metal f orce s Win two of the co p r rod central y
with a proximately 10 mm of ta e so that s c e din layers are s p rimp sed one on
another L ave at le st 12 mm at e c en of the co p r rod cle r of ta e
NOT Ta e a o e 5 mm in width s o ld b slt to alow th c p er ro s to b b re at e c e d f or th re uire
12 mm
Ap ly the ta e to the first rod, ad esive side downward in contact with the co p r, an to the
secon rod, ad esive side upward with the ta e b c in in contact with the co p r L ave
Trang 16Place e c rod in a se arate glas -sto p red, c emical y cle ned glas tub an maintain
them at a temp rature of (10 ± 2) °C f or 16 h Take the rod out of the tub s after they have
co led to ro m temp rature
Remove the ta es, together with an ex dation that may have oc ur ed, f rom the rod
Removal of ex dation may b as isted by the u e of a solvent but no mec anical a rasive
aid s al b employed
Vis al y examine the co p r rod for sig s of blue-blac stainin , c aracteristic of co p r
s lf i e If blue-blac stainin of the test rod is more inten e or exten ive than that of the
control rod, s c stainin is an in ication of the presen e of cor osive s lfur
7.5.4 Report
Re ort whether blue-blac stainin of the test rod is gre ter than that of the control rod
7.6 Ins lation re ista c method
The electrodes s al have corners rou ded to 1 mm radiu an s al b con tru ted f rom an
inert hig con u tivity metal, e.g nic el-plated bras
7.6.4 Eq ipme t
A me n for me s rin resistan e up to 10
6
MΩ (1 TΩ) to an ac urac of ± 0 % s al b
u ed Scre ned le d , with the s re n con ected to the g ard circ it, s ould b u ed f or al
con ectin purp ses
7.6.5 Re ults
For ta es les than 2 mm in width, calc late the resistan e in Ω/2 mm as umin that
resistan e is in ersely pro ortional to width
Trang 17The rate of grip se aration s al b the same f or the test on exp sed an u exp sed wires.
8 Te si e strength and elongation at brea
As des rib d in Clau e 5 of ISO 5 7-3
8.2 Te t spe ime s
Cut f i e strips of ta e, e c of s f ficient len th to give the req ired initial test len th, f rom the
sample rol at intervals of not les than 3 0 mm F r ta es havin an elon ation at bre k of
5 % or les , the initial test len th s al b 2 0 mm For ta es havin an elon ation > 0 %,
the test len th s al b 10 mm
The width of the test piece s al b eq al to or les than 5 mm
In the case of ta es wider than 5 mm, c t the test pieces out of the mid le of the ta e to a
width of 2 mm, u in a s arp to l to prod ce cle n-c t ed es For ta es les than 6 mm
wide, ed e ef f ects can have a sig if i ant ef f ect on these determination For ta es b low this
width the res lts s ould not b u ed f or sp cif i ation purp ses
8.3 Proc dure
In ert the test sp cimen into the eq ipment so that the lo d is a pl ed evenly acros the
width of the ta e The test s al b car ied out at (3 0 ± 3 ) mm/min, u les otherwise
sp cified in IEC 6 4 4-3 Dif ferent sp ed of se aration s al b selected f om Clau e 9 of
ISO 5 7-3 Make f i e val d determination , disregardin an test in whic the bre k oc urs
within 10 mm of either grip (or jaw) Durin the test en ure that the ta e do s not slp in the
grips of the testin eq ipment
8.4 Re ults
Re ort the bre kin stren th me s rements as the central value of the f i e determination in
N/10 mm width an the elon ation at bre k as the central value of in re se in distan e
b twe n the grips at the moment of bre k as a p rcentage of the original distan e b twe n
the grips Where a ta e has b en c t down f om a large width, this s al b re orted
9.1 Principle
A co p r con u tor is covered by the ta e u der test an then s bjected to a f lexin
proced re af ter con itionin at low temp rature The sp cimen is tested for the presen e of
crac in or u win in
Trang 189.2 Te t spe ime
The co p r con u tor of a 3 0 mm len th of thermo lastic in ulated ca le (of a typ s ita le
f or exp sed wirin in wet location ) with a sol d con u tor a proximately 1,6 mm in diameter
(givin maximum al owa le con u tor temp rature of 7 °C) s al b b red f or 5 mm at the
mid le The b red p rtion s al then b wra p d with 3 layers of ta e (u in one piece of
ta e), half -la p d, with the layers exten in a minimum of a f ul la b yon the b red p rtion
at e c en so that the in ulation is covered The ta e s al b a pl ed smo thly with a
minimum ten ion in a man er so as to conf orm to the spl ce are
9.3 Proc dure
The pre ared sp cimen s al b placed in a cold c amb r an con itioned for a p riod of 3 h
at a temp rature sp cif ied in Ta le 1 Af ter this con itionin the sp cimen, whie sti at the
con itionin temp rature, s al b s bjected to the flexibi ty test sp cified in 9.4 F l owin
the f lexibi ty test, the sp cimen s al b con itioned f or 4 h at (2 ± 2) °C an s al with tan ,
without bre k own, the dielectric stren th tests sp cified in 9.5
9.4 Fle ibi ty
The ta ed p rtion s al b b nt 18 ° arou d a man rel havin a diameter of 8 mm, an then
straig tened This proced re s al b re e ted one an a half times, with e c b n b in
made in the reverse direction (se Fig re 3) The test s al b completed within 3 s The
layers of ta e s al then b examined for crac in an u win in
9.5 Ele tric stre gth
Fol owin the f lexibi ty test, the b nt p rtion of the sp cimen s al b immersed, ex e t for
the en s, in ta water at (2 ± 2) °C f or a p riod of 1 h (se Fig re 4) Then an a.c voltage of
1 5 0 V s al b a pl ed f or 1 min b twe n the co p r con u tor an the water The electrical
a p ratu is sp cif ied in Clau e 4 of IEC 6 2 3-1
9.6 Re ults
Re ort an crac in , u win in or electrical bre k own
Table 1 – Conditioning f or low temperature propertie
Trang 1910 Resista ce to pe etration at elev ted temperatures
10.1 Apparatus
An a p ratu can b u ed whic detects p netration when a (1,5 ± 0,1) mm diameter ste l
b l is pres ed u der pres rib d con ition into the s rf ace of the ta e placed on a cor osion
-resistant ste l plate, 10 mm lon by 3 mm wide by 3 mm thic
An oven ca a le of aisin the temp rature of the a p ratu at a rate of (3 ± 5) °C/h
The a p ratu des rib d hereinaf ter (se Fig re 5) is an example of an a p ratu that gives
go d res lts
A mag etized ste l rod, reces ed at one en , hold the 1,5 mm diameter ste l b l A new
b l s al b u ed f or e c determination This rod is fixed in a C-clamp whic f urther contain
a cou ter b lan e an is mou ted in s c a way that the neces ary f re dom of rotation
exists
The cou ter b lan e con ists of an adju ta le rider ca a le of neutral zin the pres ure of
the ste l b l again t the ste l plate when there is no lo d on the lower leg of the C-clamp In
u e, the lower leg of this C-clamp is eq ip ed to exert a f orce of 10 N vertical y downward
again t the cor osion- esistant ste l plate lyin in a horizontal plate
The a p ratu is eq ip ed with a device to in icate electrical contact b twe n the ste l b l
an the ste l plate A low-voltage source of electricity is to b u ed The temp rature of the
ste l plate s al b me s red at a p int as ne r as p s ible to the p int where the pres ure is
exerted The u e of a thermocouple is s g ested
10.2 Te t spe ime s
Take f i e strips of ta e, e c 2 mm lon , fom the rol at intervals of not les than 3 0 mm
Take care to remove the ta e fom the rol in man er that minimizes stretc in The
sp cimen s al b al owed to relax prior to testin : ta es with elon ation < % s al b
al owed to relax f or at le st 5 min, ta es with elon ation 5-5 % s al b alowed to relax f or
at le st 3 min an ta es with elon ation >5 % s al b al owed to relax for 2 h to 3 h
10.3 Proc dure
With no lo d on the p netration sphere, e c sp cimen s al b placed smo thly on the ste l
plate (not pres ed on an not roled on) u der the sphere at ro m temp rature with the
ad esive s rf ace f acin the ste l plate Place the a p ratu cautiou ly in the oven Al ow the
sample to dwel f or 10 min at (2 ± 2) °C an then lo d the sphere, so that a compres ive
lo d of 10 N is exerted on the sp cimen The temp rature of the a p ratu s al then b
raised at a u if orm rate of (3 ± 5) °C/h u ti p netration oc urs
10.4 Re ults
Re ort the central value as wel as the maximum an minimum values of the f i e me s red
temp ratures at p netration in degre s Celsiu
11 Adhesion
1 1 Principle
A len th of ad esive ta e is a pl ed to a stan ard plate (se Fig re 6), whic is then f i ed
vertical y in one clamp of a ten i e testin mac ine The other clamp of the mac ine puls the
Trang 20The ad esive stren th is me s red by the force req ired to p el the ad esive ta e
contin ou ly f rom the plate (se 1 1.1 Test method A), or f rom the b c in of the ta e (se
1 1.2 Ad esion to b c in ), the l ne of se aration b in p rp n ic lar to the direction of the
an le at a sp cified rate, d rin whic time the force
req ired to ef fect p el is me s red This method is con istent with the method contained in
EN 19 9:2 0
1 1.2 Test Method B – Ad esion to b c in , sin le-co ted ta es – A strip of the ta e u der
test is a pled to a rigid p nel A strip of the ta e u der test is a pl ed to the b c in of the
f irst strip an tested f or p el ad esion as des rib d in Method A
1 2 Materials
1 2.1 Absorbe t cle ning material
Surgical gau e, cot on wo l or tis ue To b s ita le, materials mu t b l nt f re d rin u e,
a sorb nt, contain no ad itives that are soluble in the solvents lsted in 1 2.2 an made
ex lu ively f rom virgin materials
1 2.2 One or more of the f ol owin solv nts
Diacetone alcohol, non- esid al grade
An a pro riate test piece c t er s al hold two sin le ed e razor blades in p ral el planes a
precise distan e a art, to form a c t er of exact sp cimen width; two c ters, 12 mm an
2 mm c t in width, s al b avaia le or a pro riate alternatives whic wi not cau e ed e
damage The precision on the razor blade se aration s al b the nominal width ± 0,10 mm
1 3.2 Te si e te tin ma hine
A con tant rate of exten ion (CRE) ten ion tester s al b u ed It is pro osed to u e an
electronic mac ine takin at le st one re din p r mi imetre of ta e p eled The tester s al
have two clamps with centres in the same plane, p ral el with the direction of the motion on
the same plane, p ral el with the direction of the motion on the stres in clamp an so al g ed
that they wi hold the sp cimen whol y in the same plane; a me n of movin the stres in
clamp at a u if orm rate of 5 mm/s ± 0,2 mm/s an a device f or recordin lo d The in trument
s al b calbrated in s c a way that a maximum er or of 2 % is al owed on the re din
Trang 211 3.3 Stainle s ste l pa els
These s al b p rectly flat, at le st 12 mm lon an 5 mm wide an at le st 1,1 mm thic ,
stainles ste l typ 1.4 01 in ac ordan e with the 2 R q al ty defined in EN 10 8 -2, havin a
brig t an e led finis with a s rf ace rou h es of 5 nm ± 2 nm Panels s owin stain ,
dis oloration or man s ratc es are not ac e ta le New p nels s al b cle ned prior to u e
as des rib d in NOTE 1 to 1 5.2 ex e t with ten was es of the final solvent Betwe n u es,
the p nel test s r ace s al b protected f rom s ratc es an contamination
1 3.4 Me ha ic l or ha d-o erate rol er
The rol er u ed for al ad esion tests is as des rib d in An ex A (normative)
1 3.4.1 A ste l rol er (8 ± 2,5) mm in diameter an (4 ± 1,5) mm in width, covered with
rub er a proximately 6 mm in thic nes , havin a Shore A d rometer hard es of 8 ± 5 The
s r ace s al b a true c l n er, void of an con ex or con ave deviation The mas of the
rol er s al b (2 ± 0,1) k
1 3.4.2 No p rt of the a p ratu s al in re se the mas of the roler d rin u e The rol er
s al move either mec anical y or by han at the rate of (10 ± 0,5) mm/s
1 4 Te t s mple a d te t pie e
1 4.1 Conditioning
Con ition the sample rol s of ta e in the stan ard con ition of 2 °C ± 1 K an (5 ± 5) %
RH Test at these con ition , u les otherwise sp cified in IEC 6 4 4-3 If these toleran es
can ot b maintained, the closest p s ible toleran es s al b u ed an these revised
toleran es q oted in the re ort
1 4.2 The test piece s al b 2 mm wide A toleran e of a 0,5 mm s al b al owed The
len th s al b a proximately 3 0 mm
NOT Wh re th width of th s e ime is le s th n 2 mm, a ply o e or more a ditio al strip of th ta e to giv
a e uiv le t width of 2 mm for rol n p rp s s Altern tiv ly a c pta le rol n pre s re ma b o tain d with a
1 k roler o s mple with width 8,5 mm – 17 mm or with 2 k roler o s mple with width gre ter th n 17 mm to
a ma imum of 3 mm
1 4.3 Dis ard at le st thre but no more than six outer wra s of ta e f om the sample rol
b fore takin the test pieces for testin
1 4.4 Remove one test piece f or e c of the five tests to b p rf ormed Remove the test
piece f rom a f re ly rotatin rol at the rate of 5 0 mm/s to 7 0 mm/s Where hig u win f orce
makes it imp s ible to remove the test piece at the pres rib d rate, remove it at a rate as
close to 5 0 mm/s as p s ible
1 4.5 When the ta e is wider than 2 mm, test pieces of the widest sp cif ied width are to
b c t with an a p ratu as des rib d in 1 3.1 fom the centre of a strip removed f rom the
rol in ac ordan e with 1 4.4
1 4.6 Ap ly the test pieces within 5 min af ter u win in
NOT d u le-sid d ta e s al b te te b remo in th interle vin material a d c v rin th a h siv
s ra e, n t to b te te , with 2 μm p ly ster f ilm
Trang 221 5 Proc d re
1 5.1 Sta dard te t condition
Stan ard test con ition s al b the same as in 1 4.1 f or test pieces an test samples
con itionin
1 5.2 Preparation of the pa el
Disp n e one of the solvents l sted in 1 2.2 on to the p nel, wipin it to dry es with f res
a sorb nt cle nin material Re e t f or a total of thre was es with this solvent
Final wip s al b with methyl eth l ketone or acetone The p nel s ould b alowed to dry
f or at le st 10 min Panels not u ed within 10 h s ould b re-cle ned
NOT 1 In ord r to o tain c n iste t re ults, a n w p n l s al b wip d at le st te time with f i al s lv nt
b fore u e
NOT 2 Dis ard plate s owin stain , dis oloratio , or ma y s ratc e Av id c nta tin p n l s ra e with
fin ers Durin stora e p n l s o ldb prote te fom d ma e or c ntamin tio
1 5.3 Pe l a he ion
1 5.3.1 Remove a 3 0 mm test piece of the ta e to b tested, as des rib d in 1 4.4 Fold
12 mm at one en , ad esive-to-ad esive to f orm a ta Tou h the other en of the test piece
to an en of the test p nel Holdin the ta en of the test piece so that it do s not make
contact with the p nel but is p sitioned lo sely a ove it, rol mec anical y or by han twice in
e c len thway direction, cau in the rol er to a ply the ta e to the p nel This prevents
entra ment of air b twe n the ad esive an the p nel Should this oc ur, dis ard the test
piece
In ivid al y pre are e c test piece an test within 1 min
NOT L n er dwel time wi giv diff ere t re ults Pe l a h sio in re s s with dwel time at dif fere t rate for
v rio s ta e A lo g r dwel time ma b c o e p rp s ly
1 5.3.2 Strip in the test piece Double b c the f olded en of the ta e at an an le of 18 °
an p el 2 mm of the ta e f rom the p nel Clamp that en of the p nel into one of the jaws
of the ten i e testin mac ine an the ta e into the other jaw Op rate the tester at
(5,0 ± 0,2) mm/s
Af ter the mova le jaw is started in motion disregard the values o tained whie the f irst 2 mm
of ta e are mec anical y p eled Use the average force o tained, d rin p el n of the next
5 mm of ad esive ta e f om the p nel, as the ad esion value
NOT Th te ter s o ld k ow th t b prolo g d h n ln , h at is tra smite to th stainle s ste l te t p n l
Th ref ore d rin a d af ter a plc tio of th a h siv ta e to th te t p n l th p n l s o ld b h n le a ltle
a p s ible
1 6 Expre sion of re ults
1 6.1 Ge eral
Expres the p el ad esion in Newton p r 10 mm ( o the ne rest 0,1 N/10 mm), if neces ary
f irst con ertin the o served f orce to Newton
1 6.2 Te t report
The test re ort s al in lu e the f ol owin information: