Tiêu chuẩn iso 12127 1 2015

© ISO 2015 Clothing for protection against heat and flame — Determination of contact heat transmission through protective clothing or constituent materials — Part 1 Contact heat produced by heating cy[.]

Clothing for protection against heat

Part 1:

cylinder

Vê tement de protection co tr la ch leur et la flamme —

Déte mination de la tra smission the mique p r co tact à tra e s le s

vê tement de protection o leurs matériau co stitutifs —

Partie 1: Tra smiss ion the mique p r co tac t produite p r u

c ylindr ch u fnt

S con edition

2 1 -1 -1

Refer ence n mb r

ISO 1 1 7-1:2 1 (E)

i © ISO 201 – A ll rights reserved

© ISO 201 , P blshed in Sw itz rlan

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the r eq eser

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CH-1 14 Vernier, Geneva, Sw itzerlan

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F reword i v

Introduction v

1 Sc ope 1

2 Terms and definitions 1

3 Principle 1

4 A pparatus 2

5 S mpl n an c onditioning 2

5.1 Sampl ng 2

5.2 Conditioning 3

6 Test metho 3

6.1 Starting con itions 3

6.2 Pr oc dure 3

6.3 Ev luation 3

7 Test rep rt 3

A nne x A (informative)Best practic es for cle ning the he ting cylnder 8

A nne x B (normative) Deter mination of pr oper ty values for rating and clas ification 9

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 sp nsible 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 WTO principles in the Te h ical

Bar ie s t o Trade (TBT) se the fol owing URL: F or word - Sup lementary information

ISO 1 1 7-1 was pr par d b Te hnical C mmitt ee ISO/TC 94, Pe son l s afet y — Protec ti ve clothin

a d eq ipment, Subcommitt ee SC 1 , Protec ti ve clothin , an b Te h ical Committ ee CEN /TC 1 2,

Protec ti ve clothin includin h nd a d arm protec tio a d lfejackets in col a oration

This se on edition canc ls an r plac s the f irs edition (ISO 1 1 7-1:2 0 ), of w hich it cons itut es a

minor r vision The folowing chang es ha e be n made:

a) title, for bett er compr hension;

b) alpha etical orde , “Te msan definitions” ;

c) modif ied clause for “ Heating cy lin e ”r g rding ex mple an pictur s;

d) modif ied clause for “Calorimet er” r g rding mor detaied information;

e) modif ied clause for “As embly” r g rding spe d an pictur ;

f) lat es s an ard n mbe s in clause “Tes r p rt” ;

g) new An ex A for “ Bes practic s for cleaning the heating cy lin e ” ;

h) new An ex B for “ Det ermination of pro e ty v lues for rating an clas if ication”

ISO 1 1 7 consis s of the folowing part , u de the g ene al title Clothin fr protec tio a ains t heat a d

flame — Dete min tion o c ontac t heat tra s mi s s io thro g protec ti ve clothin or c ons tituent mate ials:

— Part 1: Co tac t heat produc ed b heatin cylnde

— Part 2 : Tes t meth d us in c ontac t heat produc ed b dro pin s mal cylnde s

Prot ective clothing designed t o prot ect a ains heat an flame can be ex osed t o dir ct contact with

hot subs anc s or hot urfac s

The dive sity of such contact con itions makes it difficult t o ev luat e the hazards that can arise from

high t empe atur

The t es method desc ibed in this p rt of ISO 1 1 7 alow s this heat trans e t o be as es ed w hen a

heating cy lin e an the clothing mat erial ar brought int o contact with each othe

This p rt of ISO 1 1 7 forms p rt of a se iesof s an ards conc rned with clothing designed t o prot ect

a ains heat an f ir

Clothing for pr otection against heat and flame —

Part 1:

This p rt of ISO 1 1 7 spe ifies a t es method for the det ermination of contact heat ransmis ion It is

a plca le t o prot ective clothing ( inclu ing han prot ect ors) an it cons ituent mat erials int en ed t o

prot ect a ains high contact tempe atur s

Ap lcation of this p rt of ISO 1 1 7 is r s rict ed t o contact t empe atur s betwe n 1 0 °C an 5 0 °C

2 Terms and definitions

F or the purposes of this document, the folowing t ermsand definitions a ply

2.1

co tact for e

for e acting on the t es spe imen an the calorimet er w hen they ha e be n brought int o contact with

the heating cy lin e

2.2

co tact temperature

T

c

surfac t empe atur of the contact ar a of the heating cy lin e , this t empe atur being kept cons ant

2.3

rate of co tact

r lative spe d with w hich the heating cy lin e an thecalorimet er with the t es spe imen ar brought

int o contact with each othe

2.4

start of timing

moment w hen the up e surfac of the calorimet er an the b tt om edg e of the heating cy lin e ar

within 1 mm of each othe

2.5

threshold time

t

t

time betwe n the s art of timing an the moment w hen the t empe atur of the calorimet er is 1 °C

a o e it s arting v lue

The heating cy lin e is heat ed t o an maintained at the contact t empe atur an a t es spe imen is

plac d on the calorimet er The heating cy lin e is lowe ed ont o the t es spe imen sup ort ed b the

calorimet er or, alt ernatively, the calorimet er with the spe imen is l ft ed up t o the heating cy lin e

In eithe case, the o e ation is car ied out at a cons ant spe d The thr shold time is det ermined b

monit oring the t empe atur of the calorimet er

4 A pparatus

4.1 He ting cylnder

The heating cy lin e shal be cons ruct ed from a suita le metal w hich can withs and t empe atur s of

o e 5 0°C (e.g Sive Al o , 9 5 St erl ng Sive ) Figur s 1, 2 an 3 show an ex mple of the s amp an

heating cy lin e The contact surfac shal ha e a diamet er of (2 ,2 ± 0,0 ) mm an shal be p l shed

The e shal be a c ntral b ring w hich en s 2 mm a o e the lowe surfac of the heating cy lin e This

b ring is int en ed t o hold the t empe atur sensor, w hich is ne es ary for r gulation of the t empe atur

of the heating cy lin e , and it diamet er should be chosen ac ordingly The heating cy lin e shal be

enclosed b heat-r sis ant insulation, lea ing fr e the b tt om contact surfac

The heating cy lin e shal be ca a le of being heat ed t o o e 5 0°C an be ca a le of maintaining the

chosen t es ing t empe atur

4.2 Calorimeter

The calorimet er (as shown in Figur 4 ) consis s of a cy lin rical disc of black anodiz d pur aluminium

of (2 ± 0,0 )mm diamet er, an thicknes of a pro imat ely 5.0 mm an a mas of (6,6 ± 0,0 ) g, w hich

is pushed int o a mounting made from p ly mide 6.6 so as t o be a tight f it The up e contact urfac of

the disc shal be surfac grou d befor anodization an shal ha e a the mocouple at ached t o it lowe

surfac b means of adhesive ta e

NOTE A PR 6 62 BK / 02 T ermoco x thermocou le or eq ivalent has b en fou d to b suita le

1)

4.3 A ssembl y

Figur 5 show s an ex mple of the as embly The heating cy lin e an calorimet er ar mou t ed with

p ralel fac s an with their symmetrical ax es in l ne in a sup orting frame Pro ision shal be made for

mo ing at a controled spe d (5,0± 0,5 mm/s) eithe the heating cy lin e down t owards the calorimet er

or the calorimet er up t owards the heating cy lin e An ad itional weight shal be dimensioned in such

a wa that the contact for e is (49 ± 0,5) N Betwe n measur ment, d ring co l ng pe iods, a suita le

shielding shal be put betwe n the heating cy lin e an the calorimet er in orde t o pr vent the

calorimet er from being heat ed b the mal radiation from the heating cy lin e

4.4 Electronic devic es

Suita le ele tronic devic s shal be pro ided t o

— raise the t empe atur of the heating cy lin e t o the chosen t es ing t empe atur an maintain this

t empe atur t o ± 2°C

— control the rat e of contact ;

— measur an r gist er the calorimet er t empe atur t o an ac uracy of ± 0,1°C;

— measur the thr shold time

5 Sampl ng and c onditioning

5.1 S mpl ng

Thr e cir ular t es spe imens of 8 mm diamet er shal be taken for each contact t empe atur from the

prod ct or from a pie e of the mat erial int en ed for man factur of the prod ct If one spe imen fais

the pe formanc s an ard a furthe set of thr e spe imens shal bet est ed ( e An ex B)

1) T is is an example of a suitable pr od ct a vaila le commer cialy T is information is g iven for the con venience of

user of this document an do s not constitute an en or ement by ISO of this pr od ct

5.2 Conditioning

Befor t es ing, t exti e spe imens shal be con itioned for at leas 24 h and leathe spe imens for at leas

48h in an atmosphe e ha ing a t empe atur of (2 ± 2) °Can r lative h midity of (6 ± 5)%

6 Test method

6.1 Star ting c onditions

The measur ment shal be car ied out in an environment ha ing a t empe atur of (2 ± 5) °C an

r lative h midity betwe n 1 % an 8 % The heating cy lin e shal be brought t o ± 2 % of the

sele t ed contact t empe atur ( in degr es Celsius) The t empe atur of the calorimet er shal be at ro m

t empe atur ± 2°C befor the s art of each t es The t es shal be s art ed not lat er than 3 min aft er the

t es spe imen has be n taken out of the con itioning atmosphe e ( e 5.2)

6.2 Proc edure

Plac the t es spe imen on the calorimet er so that it out er fac is upwards R emo e the shielding

betwe n the heating cy lin e an the calorimet er an bring the heating cy lin e int o contact with

the calorimet er at a rat e of contact of (5,0 ± 0,2) mm/s Measur an r cord the t empe atur of the

calorimet er d ring the t es Car y out at leas thr e measur ment at each contact t empe atur

6.3 Evaluation

Det ermine the thr shold time, t

t , t o the near s 0,1s

7 Test r eport

The t es r p rt hal contain the fol owing element :

a) r fe enc t o ISO 1 1 7-1;

b) name of the sup le of the prod ct or mat erial;

c) name, as given b the sup le , an desc iption of the prod ct or mat erial;

d) contact t empe atur (), T

c

;

e) thr shold time, t

t

fr each indi vidu l s pec imen pe contact t empe atur , the mean v alue an s an ard

deviation T he u c rtainty of measur ment of the thr shold time t

t shal be given in the r p rt

f) desc iption of o se ved chang es in the t es spe imens;

g) dat e of t es

Dimensions in milimetr es

Heating Element:e.g Sive Alo , 9 5 St erlng Sive

Figure 1 — Stamp

Dimensions in milimetr es

Key

He ting Element with He ter, Ex ample: Er a T ype 2 1 2 0W

Figure 2 — He t cy linde with stamp

2 mou ting s r ew

4 he ting isolation

Figure 3 — He ting cy linder with stamp buit in encased insulating material

Dimensions in milimetr es

Key

1 cylin rical dis , made from black anodized p r e aluminium

3 mou ting , made fr om polyamide 6.6

a

Max imum depth of thr ead holes for mou ting the calorimeter

Figure 4 — Calorimeter

1 ad itionalweig ht

2 he ting cylin er w ith insulation

5 su porting frame

Figure 5 — As embly

A nnex A

Best practic es for cleaning the heating cyl nder

The folowing p s ible cleaning methods ar used b dife ent la orat ories:

— Aft er the t es the cold heating cy linde can be cleaned with ac t one

— If the contamination on the cy lin e is minor, then a pie e of a sorbent p pe ma be al that is

r q ir d t o r mo e it

— If the contamination is mor signif icant, then it ma be ne es ary t o heat upthecy lin e t o 5 0°C,

alow it t o co l an then car fuly r mo e the r sid e with a f ine blade

— Ensur that thecy lin e is clean befor each t es

A nne x B

(normative)

If a mat erial exhibit dife ing beha iour for a pro e ty in the length an c os dir ctions of the

mat erial, the r sultant pro e ty v lue shal be the v lue o tained in theles e pe forming dir ction Al

the in ivid al r sult of the spe imens of a t es shal me t the pe formanc r q ir ment In the event

that only one spe imen fai s, anothe set of spe imens shal be t est ed and al the in ivid al r sult of

this se on set of spe imens shal me t the r q ir ment Othe wise the sample is conside ed t o ha e

faied the r q ir ment

© ISO 201 – A ll rig hts r eserved

ICS 13.340.10

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