Tiêu chuẩn iso 02286 2 2016

© ISO 2016 Rubber or plastics coated fabrics — Determination of roll characteristics — Part 2 Methods for determination of total mass per unit area, mass per unit area of coating and mass per unit are[.]

Rubber- or plastics-c oated

Part 2:

S p ort te xtile s r vê tus de ca utch uc o de plastique —

Déte mination de s caractéristiques des ro lea x —

Partie 2: Méth de s de déte rmin tio de la mas e surfciq e totale , de

la mas e surfciq e du re vê te me nt e t de la mas e surfciq e du su p rt

S con edition

2 16-0 -1

COPYRIGHT PROTECTED DOCUMENT

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F reword i v

Introduction v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Deter minatio of total mas per unit ar ea 1

3.1 A pp r atus 1

3.2 Pr eparation of tes pie es 2

3.3 Pr oc dure 2

3.4 Calculation an ex pres ion of results 2

3.5 Tes rep rt 2

4 Deter minatio of mas pe unit ar ea of substrate 3

4.1 General 3

4.2 Principle 3

4.3 Reag ent 3

4.4 A pp r atus 3

4.5 Pr oc dure 3

4.6 Calculation an ex pres ion of results 4

4.7 Tes rep rt 4

5 Deter minatio of mas pe unit ar ea of c oating 4

5.1 Pr oc dure 4

5.2 Tes rep rt 4

A nne x A (normative) C atin - remo al metho s 5

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

F or an ex lanation on the meaning of ISO spe ific t erms an ex r s ions r lat ed t o conformity

as es ment, as wel as information a out ISO’s adhe enc t o the World Trade Org nization (WTO)

principles in the Te hnical Bar ie s t o Trade (TBT) se the fol owing URL: F or word – Sup lementary

information

The committ ee r sponsible for this document is ISO/TC 45, R ub e a d rub e produc ts title,

Subcommitt ee SC4, Produc ts (othe th n h s es)

This se on edition canc ls an r plac sthe firs edition (ISO 2 8 - 2:1 9 ), w hich has be n t ech icaly

r vised The chang es ar as folow s:

— in 3.1.1, theac uracy of the balanc has be n chang ed;

— in 3.2, theusa le width of the sample hasbe n clearly spe if ied;

— in 3.3, the drying proc s has be n chang ed t o o tional and the con itioning atmosphe e has be n

spe if ied mor clearly;

— in 3.5 an 4.7, it em b) has be n ad ed;

— in 4.5.3, the con itioning atmosphe e has be n spe if ied mor clearly

ISO 2 86 consis s of the folowing part , u de the g ene al title R ub e – or plas tic s – c oated fbric s —

Dete min tio o rol charac te i s tic s:

— Part 1: Meth ds f r dete min tio o len th, w idth a d net mas s

— Part 2 : Meth ds fr determin tio o total mas s pe u it ar a,pe u it ar a o c oatin a d mas s pe u it

ar a o s ubs trate

— Part 3 : Meth d fr dete min tio o thicknes s

The t otal mas pe u it ar a of a mat erial, the mas pe u it ar a of the subs rat e cloth an themas pe

unit ar a of the co ting ar q antities w hich define the b sic q al ty of a co t ed fa ric an det ermine

many of it phy sical pro e ties The subs rat e cloth mas det ermined b these methods does not

ne es ari y r pr sent the mas of the subs rat e cloth in the u co t ed s at e F or ex mple, in the case

of co t ed fa rics in w hich a b n ing ag ent has be n used, the subs rat e cloth mas det ermined ma be

subs antialy highe than the unco t ed mas be a use the pr sc ibed tr atment has not r mo ed the

entir co ting This wi l be particularly so in cases w he e the subs rat e cloth is made from multifilament

or spu -fibr y rns Dimensional chang es in the subs rat e cloth d ring proc s ing ma also oc ur

Rubber- or plastics-c oated fabrics — Determination ofrol

Part 2:

mass per unit ar ea ofc oating and mass per unit ar ea of

WARNING — Per ons using this International Standard sho ld be fami iar with normal

laboratory practice This International Standard does not purport to addres al of the

safety pro lems, if any, as ociated with its use It is the respo sibiity of the use to establsh

appropriate safety and he lth practices and to ensure complance with any natio al re ulatory

co ditio s

This p rt of ISO 2 8 spe ifies methods of det ermining the t otal mas pe unit ar a, the mas pe u it

ar a of the co ting an the mas pe u it ar a of the subs rat e cloth of a rub er- or plas ics-co t ed

fa ric Methods for r mo ing co tings of spe if ic comp sitionsar desc ibed in An ex A

2 Normati ve r eferences

The folowing document , in w hole or in p rt, ar normatively r fe enc d in this document an ar

in ispensa le for it a pl cation F or dat ed r fe enc s, only the edition cit ed a pl es F or u dat ed

r fe enc s, the lat es edition of the r fe enc d document ( inclu ing any amen ment )a pl es

ISO 2 3 :1 8 , R ub e - or plas tic s-c oated fbric s — Sta dard atmos phe es fr c onditio in a d tes tin

3 Determination of total mas per unit ar ea

3.1 A pparatus

3.1.1 Balanc e, ca a le of r eading to 1 mg or les

3.1.2 Me ns of maintaining an atmospher e w ith a relative h midity not g reate than 1 % an a

temper atur e of 6 °C ± 5°C

NOTE Air at 2 °C an 65 % relative h midity, when he ted at constant pres ure to 65 °C ± 5 °C, wil have a

relative h midity of ap ro imately 5 % Higher temperatures can le d to chang es in some co tings

3.1.3 C t er, ca a le of cut ing , fr om the sample of co ted fa ric, a tes pie e of area 1 0cm

2

± 1 cm 2

NOTE It has b en fou d convenient t o use a cir ular cut er for this p rpose, but sq are or rectangular t est

pieces can b used provided they are within the ac uracy specif ied a ove

3.2 Preparation of test piec es

Using the cutt er (3.1.3) cut five t es pie es from the sample, from positions sp c d r asona ly evenly

an close t o the diag onal ac os the usa le width of the sample ex clu ing 5 mm from the edg e of the

sample so that the ful width of the co t ed fa ric is r pr sent ed

Do not take any t es pie es within 1 m of a prod ction-man factur d rol end

3.3 Proc edure

Unles othe wise a r ed betwe n the int er st ed parties t o skip the drying proc s , dry the t es pie es

t o cons ant mas in an atmosphe e with a r lative h midity not highe than 1 % at a t empe atur of

6 °C±5 °C

Con ition the t es pie es in ac ordanc with the method of con itioning “1” in ISO 2 3 :1 8 an ,

without r mo ing them from the con itioning atmosphe e, det ermine the mas of each t o the near s

5 mg an the surfac ar a of each t o within 1 %

NOTE An estimate of the mas per u it are of the co t ed fa ric derived from the t otal net mas of the rol

an its k own length an width may b inac urate b cause a complete rol of co ted fa ric can ot normaly b

con itioned to eq ilibrium in a stan ard atmosp ere Such inac uracies are d e t o ex ces es or def iciencies in

moisture re ain through the complete rol

3.4 Calculation and ex pr es ion ofresults

F or each of the f ive t es pie es, calculat e the t otal mas pe unit ar a, M, in grams pe sq ar metr ,

using F rmula (1):

M

m

A

�=�

×1

4

(1)

w he e

m is themas of the t es pie e, in grams;

A is thear a of the t es pie e, in sq ar c ntimetr s

Calculat e the mean of the f ive det erminations, ex r s ing the f inal r sult t o the near s 1 g m

2

Take this mean as the t otal mas pe u it ar a of the mat erial u de t es

3.5 Test report

The t es r p rt shal inclu e the fol owing information:

a) a r fe enc t o this p rt of ISO 2 8 , i.e ISO 2 86- 2;

b) thecon ition at the time of con itioning an the t est ;

c) a complet e desc iption of the co t ed fa ric;

d) the mean v lue, in grams pe sq ar metr , of the t otal mas pe u it ar a o tained from the f ive

t es pie es;

e) detai s of any deviationsfrom the proc d r spe ified;

f) thedat e of the det ermination

4 Determination of mas per unit ar ea ofsubstrate

CAUTION — Some of the solvents used may be toxic, flammable or otherwise hazardo s Care in

the han lng of such materials must be exer ised The inhalatio of vapo r sho ld be av ided

Suitable protective clothing, including glo es and g og les, sh uld be worn w hen appro riate It

is recommended that a suitable eyewash be kept in a position co venient for use Any furthe

precautio ary me sures recommended by the solvent manufacture sho ld be folowed

The proc d r spe ified for r mo ing the co ting from the subs rat e cloth is g ove ned both b the

natur of the co ting an b the natur of the subs rat e, an in e d for some ty es of co ting the e wi

be no known method of r mo al Whe e this isthe case, it shal be r port ed in the t es r p rt

4.2 Principle

The co ting is r mo ed with a s rip ing ag ent from the same t es pie es as wer used for the

det ermination of the t otal mas pe u it ar a The s rip ed t es pie es ar dried, con itioned an

weighed The proc d r is r peat ed u ti cons ant mas is r ached

4.3 Reag ent

4.3.1 Suitable sol vent system (str ipping ag ent), which has no solvent or chemical action on the

subs r ate Particular car e shal be taken if ther e are b nding ag ents or finishing tr eatments on the

subs r ate which are not es entialy p rt of the co ting but which might be r emo ed w ith it [e.g bon ing

ag ent in nonwo en (b n ed-fibre) fa rics, r ot-pr oofing ag ent , etc.] Ifit is k own or suspe ted that

such an ag ent has u a voida ly be n r emo ed with the co ting , this shal be r ep rted in the tes r eport

NOTE A suita le solvent system can b an org nic solvent, a mixture of org nic solvents, wat er or an aq e us

solution (se An e A)

4.4 A pparatus

The same a p ratus as desc ibed in 3.1 is r q ir d

4.5 Proc edure

4.5.1 Dis olve the co ting fr om each tes pie e sep rately In many cases, the bulk of the co ting ma y

be suc es fuly remo ed me hanicaly afe mois ening the subs rate with the strip ing ag ent Use eithe

Sox hlet ex tr action where a pr opriate or imme se the tes pie es with oc asional ag itation in at leas

three suc es ive p rtions of the solvent at an a pr opriate temper atur e u ti the co ting has a par ently

be n completely r emo ed Ensur e at thiss ag e an subseq ent s ag es that any lo se thr eads are r etained

with the tes pie es If the s ripping ag ent used is it elf a solution containing non-v lati e comp nent ,

wash the tes pie es sever al times in a suitable pur e solvent

4.5.2 Dry the tes pie es for at leas 1 h at 6 °C ± 5 °C, alow to stabi z b co l ng in a desic ator

for 1 min, and dete mine the mas of each to the near es 5 mg Extract the s rip ed tes pie es with a

furthe q antity of s rip ing ag ent , wash if ne es ary, then dry, s a i z and dete mine their mas as

befor e If the se on dete mination dife s fr om the firs b mor e than 1 %, repeat the tr eatment u ti

suc es ivedete minations show a difer enc of les than 1 %

4.6 Calculation and ex pr es ion ofresults

F r each of the fiv e tes pie es, calculate the mas pe unit ar a of the subs rate, in grams pe

sq ar metr

Calculat e the mean of the f ive det erminations, ex r s ing the f inal r sult t o the near s 1 g m

2

Take this mean as the t otal mas pe u it ar a of the mat erial u de t es

4.7 Test report

The t es r p rt shal inclu e the fol owing information:

a) a r fe enc t o this part of ISO 2 8 , i.e ISO 2 86- 2;

b) thecon ition at the time of con itioning an the t est ;

c) a complet e desc iption of the co t ed fa ric;

d) the mean v lue, in grams pe sq ar metr , of the subs rat e mas pe u it ar a o tained from the

f ive t es pie es;

e) detai s of any deviationsfrom the proc d r spe ified;

f) thedat e of the det ermination

5 Determination of mas per unit area ofc oating

5.1 Proc edure

Calculat e the co ting mas pe u it ar a b subtracting the r sult o tained for the subs rat e mas pe

unit ar a in Clause 4 from the r sult o tained for the t otal mas pe u it ar a in Clause 3

5.2 Test report

The t es r p rt shal inclu e the fol owing information:

a) a r fe enc t o this p rt of ISO 2 8 , i.e ISO 2 86- 2;

b) a complet e desc iption of the co t ed fa ric;

c) themean v lue, in grams pe sq ar metr , of the co ting mas pe unit ar a;

d) detai s of any deviationsfrom the proc d r spe ified;

e) thedat e of the det ermination

A nne x A

(normative)

A 1 General

The methods desc ibed in A.2 t o A.5 ha e be n fou d satis act ory for some of the mos fr q ently

encount er d co tings

A 2 Simple pol y(vinyl chloride) compositions

CAUTION — A ttentio is drawn to the fact that there is a risk of an ex losion oc ur ing if the

tetrah drofuran used is evaporated to dry es , unles the precaution is taken of making sure

that no pero ides are present by adding fer o s sulfate

If the co ting is contin ous an on one side only, wet the subs rat e of each t es pie e with eithe

t etrahydrofuran or butanone S p rat e the bulk of the co ting me hanicaly from the subs rat e Then

imme se each t es pie e sep rat ely in 1 0 ml of t etrahydrofuran or butanone an lea e, with oc asional

a itation, for 2 min at ro m t empe atur

R emo e the s rip ed t es pie es, t og ethe with any lo se thr ads, from the solvent an wash them in

1 0 ml of ac t one; then proc ed in ac ordanc with 4.5.2 an 4.5.3

A 3 Nitrocel ulose c ompositions

Wet the subs rat e of each t es pie e with ac t one an , w he e p s ible, sep rat e the bulk of the co ting

me hanicaly from the subs rat e

Imme se each t es pie e sep rat ely in 1 0 ml of ac t one in a flask f itt ed with a r flux con ense

R eflux for 2 min, then r plac the solvent with 1 0 ml of fr sh ac t one an r flux for anothe 2 min

R emo e the s rip ed t es pie es, t og ethe with any lo se thr ads, from the solven then proc ed in

ac ordanc with 4.5.2 an 4.5.3

A 4 P ol yurethane c ompositions

Imme se each t es pie e sep rat ely in a solution madeup as folow s:

p tas ium hydro ide ( old) 3 p rt b mas

Heat t o 48 °C ± 2 °C and keep at that t empe atur for a pe iod of 3 min or u ti the co ting has be n