Tiêu chuẩn iso 06742 2 2015

© ISO 2015 Cycles — Lighting and retro reflective devices — Part 2 Retro reflective devices Cycles — Dispositifs d’éclairage et dispositifs rétroréfléchissants — Partie 2 Dispositifs rétroréfléchissan[.]

Cycles — Light ing and ret ro

Part 2:

Cycles — Dispos itifs d’éclaira e et dispos itifs rétroréfléchissant —

Partie 2: Dispositifs rétroréfléchissant

T ir d edition

2 1 -0 -1

COPYRIGHT PROTECTED DOCUMENT

© ISO 201 , P blshed in Sw itz rlan

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F r eword i v

1 Sc ope 1

2 Nor mati ve r eferenc es 1

3 Terms and definitions 1

4 General 2

4.1 Symb ls and u it used 2

4.2 Chronolog ical or de of tes s (only for refle tors) 3

5 Photometr ical r eq ir ements 4

5.1 Refle tors 4

5.2 Retro-r efle tive tyres 6

5.3 Retro-r efle tive sp kes or sp kecases 7

6 Color imetric r equir ements 8

7 Physical requirements 9

7.1 Refle tors 9

7.1.1 C ns ruction 9

7.1.2 Tes methods 9

7.2 Retro-r efle tive tyres 1

7.2.1 Form an location 1

7.2.2 Tes methods 1

7.3 Retro-r efle tive sp kes or sp ke cases 1

7.3.1 C ns ruction 1

7.3.2 Tes methods 1

8 Photometr ic test 13

8.1 General 1

8.1.1 Ins rumentation arrang ement 1

8.1.2 Source of i umination 14

8.1.3 Re eive 14

8.1.4 Obse v tion dis anc 14

8.1.5 I luminanc at the r efle tor 14

8.2 Refle tors 14

8.2.1 Principle 14

8.2.2 Refle tor mou t (or sup ort) 14

8.2.3 Tes ar ea of r efle tor 1

8.2.4 Orientation of r efle tor 1

8.3 Retro-r efle tive tyr es 1

8.3.1 Principle 1

8.3.2 Tes method 1

8.4 Retro-r efle tive sp kes or sp ke cases 1

8.4.1 Tes ing as embles for r etr o-r efle tive sp kes an sp ke cases 1

8.4.2 Tes method 1

9 Color imetric test 16

9.1 Ins rumental measur ements 1

9.2 Visual comp rison 1

9.3 Use of methods 1

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The committ ee r sp nsible for thisdocument is ISO/TC 149, Cycles , SC 1, Cycles a d major s ub-as s embles

This third edition canc ls and r plac s the se on edition (ISO 6742-2:1 8 ), which has be n

te hnical y r vised

ISO 6 74 2 consis s of t he folowing p rt , u de the gene al title Cycles — L ig tin  a d re tro-r fle c tive  devic s :

— Part 1: Lig tin  a d lg t s ig al n  dev ic es

— Part 2 : R etro-r flec tive devices

— Part 3 : Ins talatio  a d us e o lg tin  a d r tro-r flec tive dev ic es

— Part 4 : Lig tin  sys tems p we ed b  the cycle ’s mo ement

— Part 5: Lig tin  sys tems n t p we ed b the cycle’s mo ement

Cycles — Lighting and retro-reflecti ve devic es —

Part 2:

This p rt of ISO 6 42 is a plca le t o r tro-r fle tive devic s used on cycles int en ed t o be used on

publc ro ds an , espe ialy, bicycles complying with ISO 42 0 an ISO 80 8

This part of ISO 6 42 spe if ies phot ometric an physical r q ir ment of r tro-r fle tive devic s

2 Normati ve referenc es

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 ples F or un at ed

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

ISO 9 2 , Cor os io  tes ts in artific ial atmos phe es — S lt s pra  tes ts

CIE 1 , Colorimetr y: ofic ial r c ommendatio s  o the Inte n tio al Commi s s io  o I lumination

CIE 1 3 , XYZ c olo r s pac e o the Inte n tion l Commi s s io  o  Ilumin tio

3 Terms and definitions

F or the purposes of this document, the fol owing t erms and def initionsa ply

3.1

retro-reflective device; reflector

as embly r ady for use an comprising one or mor r tro-r fle ting o tical u it

3.2

wide angle reflector

devic pro iding r tro-r fle tion through horizontal entranc angles of not les than 5 ° on eithe side

high v alues reflector

r d r tro-r fle tivedevic with high v luesof r fle tion e.g dedicat ed t o be mount ed on lug ag e car ie

3.5

retro-reflective tyre

tyr r ady for use an comprising r tro-r fle ting ann l moulded on t o each sidewal of the tyr

4.1 Symbols and units used

Symb ls ar shown in Figur 1 Their meaning an u it used ar given in Ta le 1

Figure 1 — Symbols

NOTE T e fol owing symb ls are in ac ordance with R egulation No.3 of the UN/E E concerning

retro-reflective devices

Table 1 — Me ning and units of symbols used

Α Are of the efective refle surface of the retro-reflective device c m

C which always considered to b

horizon-tal, this angle is pref ix ed with signs – (lef), +(right), + (up)or – (down), ac ording

t o the position of the sour e S

e

in relation to the a is NC, as se n when lo king

t owards the retro-reflective device F or an direction def ined by two angles, verti

cal an horizontal,the vertical angle is always given f ir t

De r e a d 

min tes

γ Angular subt ense of me suring device R

r, as se n from point C

De r e a d

min tes

δ Angular subtense of the sour e S

e, as se n from point C

De r e a d 

min tes

ε

R otation angle This angle is positive when the rotation is clockwise as se n when

lo king t owards the iluminated surface If reflecting device is marked “TOP”, the

position th s in icat ed is taken as origin

De r e a d 

min tes

CIL Co ff icient of luminous intensity

F r hermore, the efe tive dis anc s may be used when a c l mated sys em is used in order toobtain an ar if icialy

incre sed me surin dis anc

4.2 Chronolog ical order of tests (onl y for r eflector )

The a plcant shal submit for a pro al samples w hich shal be t est ed in the chronolo ical orde

in icat ed in Ta le 2

Table 2— Chro ological orde of tests

Numbe of p ra ra h Tes s for r tro-r fle tive devic s

Samples

Clause 6

Colorimetry: visual inspection

Trichromatic co rdinat es in case of doubt

Clause 6

Colorimetry: visual inspection

Trichromatic co rdinat es in case of doubt

Colorimetry: visual inspection

Trichromatic co rdinat es in case of doubt

5 Photometr ical r equirements

In orde t o folow dife ent r q ir ment in dife ent countries, the phot ometrical r q ir ment ar

divided int o 2 groups: Group A an Group B

Table 3— Tables l nk with grou s

Ta les4 t o 7 a ples t o front, side an r ar r fle t ors

Ta les8 an 9 a ples t o pedal r fle t ors

Ta le 1 a ples t o high v lues r fle t ors High v lues r fle t ors ar only a plca le in Group A

Table 4 — Coef icients of lumino s intensity, CIL, for co ventio al reflector

Table 7 — Coef icients of lumino s intensity, CIL, for wide angle reflector

5.2 Retro-reflecti ve tyres

When t est ed b the method given in Clause 8, the CIL v lues for a r tro-r fle tive tyr shal not be les

those spe ified in Ta le 1 an Ta le 1 In case w he e D is les than 42 mm the minimum phot ometric

v lue for each o se v tion an entranc angle shal be eq al t o the v lue for D =42 mm

Table 1 — Coef icients of lumino s intensity, CIL, for retro-reflective tyres

5.3 Retr o-reflecti ve spokes or spoke cases

R etro-r fle tivespokes or sp ke cases ar only a plca le in Group A

When t est ed b the method given in Cla use 8, the CIL v lues for r tro-r fle tive spokes shal not be les

than those spe if ied in Ta le 1

Table 13 — Coef icients of lumino s intensity, CIL, for retro-reflective spokes

When t est ed b the method given in Clause 8, the CIL v lues for r tro-r fle tive sp kecases shal not be

les than those spe ified in Ta le 14

Table 1 — Coef icients of lumino s intensity, CIL, for retro-reflective spoke cases

The colour of the r tro-r fle ting lght is t o be det ermined ac ording t o Clause 9 an hast o be within the

colour rang e w hit e of thisp rt of ISO 6 42

R etro-r fle tivespokes or sp ke cases w hich ha e be n colour d with a co t of p int ar inadmis ible

6 Colorimetr ic r equir ements

When det ermined b the method given in Clause 9, the colour of the r fle t ed l ght shal be locat ed

within the a pro riat e ar a def ined b CIE chromaticity co rdinat es spe if ied in Ta le 1

NOTE For e se of reference these are s are shown grap ical y in Figure 2

Table 15 — x-y chromaticity coordinates of the inter ectio points of colo r bo ndary lnes

W white light r eg ion

Y yelow lig ht r eg ion

R red light r eg ion

W/Y white yelow light r eg ion

S spectrum locus

Figure 2— Boundaries of colour are s for reflective devices

7 Physical r equirements

7.1 Reflector s

7.1.1 C nstr uction

The r fle t or an / r mount shal incorp rat e a dis inct pr fe r d as embly method t o ensur that the

r fle t or can be mount ed in it designed orientation with r g rd t o the bicycle

7.1.2 Test metho s

7.1.2.1 General

A r fle t or shal comply with the phot ometric an colorimetric r q ir ment of 5.1 an Clause 6,

an the e shal be no lo sening of the mou ting() or dist ortion of the housing that would afe t the

pe formanc of the r fle t or, aft er being subje t ed t o any or al t es s spe ified in 7.1.2.2t o 7.1.2.6

7.1.2.2 Temperature resistanc e test

When t est ed b the folowing method, a r fle t or shal exhibit no soft ening, c acks, dist ortion or lust er

chang e of the lens or othe visible defe t that afe t he r fle ting fu ction:

°C

NOTE A pedalreflector may b t est ed inte ral y with its pedal

7.1.2.3 Impact test (e xc ept for c onventio al reflector of Gr oup A )

When a r fle t or is t est ed at ro m t empe atur b the folowing method the lens shal not c ack

Mount the r fle t or in a manne simiar t o the wa in w hich it is mou t ed on the bicycle, but with the

lens fac horizontal an dir ct ed upwards

Dro a 1 mm diamet er p lshed sold st eel b l, onc , ve tical y ont o the c ntral part of the lens from a

height of 0,76 m The b l ma be guided but not r s rict ed in fr e fal

7.1.2.4 Moistur e resistanc e test

Strip al r mo a le p rt from the r fle tive devic , w hethe p rt of a lamp or not, an imme se for

1 min in wat er at a t empe atur of (5 ± 5) °C, the highes point of the up e p rt of the r fle tive

surfac being 2 mm below the surfac of the wat er R epeat his t es aft er turning the r fle tive devic

through 1 0 ° so that he r fle tive surfac is at he b tt om an r ar fac is co e ed b a out 2 mm of

wat er Then immediat ely imme se the o tical u it in the same proc d r in wat er with a t empe atur

of (2 ±5)°C

7.1.2.6 Resistanc e to lubricating ois

W ipe the out er surfac of the r flex r fle t or lghtly with cott on so ked in det erg ent lubricating oi

Aft er 5 min, clean the surfac b wiping with a cloth

7.2 Retro-reflecti ve tyres

7.2.1 F r m and locatio

The r tro-r fle tive s rip shal be in form of a contin ous cir le of r tro-r fle tive mat erial on each

sidewal of the tyr

7.2.2 Test metho s

7.2.2.1 General

When subje t t o the t es in 7.2.2.2 t o 7.2.2.8 inclusive, the r tro-r fle tive mat erial on the tyr shal

comply with the phot ometric r q ir ment of 5.2:

— for α = 0°2 ′ an β = 5° for group A, or

— for α = 0°1 ′ an β = −4°for group B,

an with the colorimetric r q ir ment of Cla use 6 as spe if ied in Ta le 1

The ta le also in icat es w he e a portion of a tyr shal be used inst ead of a complet e tyr Thep rtion shal

be cut from a tyr not pr viously subje t ed t o phy sical s r s of this p rt of ISO 6 42 The r q ir ment

of 5.2an Clause 6 do not a ply t o a portion cut from a tyr

Table 1 — Ap l cabi ity of specimens to the ph tometric and colorimetric req irements

When t est ed b the fol owing method, the e shal be no c acking, pe l ng or blst ering of the r

tro-r fle tive mat erial that would afe t the pe formanc for the int en ed use

Subje t a t es sample t o the folowing con itions in seq enc :

a) 1 h conse utively at a t empe atur of (6 ± 5)°C with a r lativeh midity of (1 ± 5) %;

b) at leas 1 h at a t empe atur of (2 ± 5) °C with a r lative h midity of (5 ± 5) %;

c) 1 h conse utively at a t empe atur of (− 20 ± 5) °C

7.2.2.3 Impact resistanc e

When t est ed with the folowing method the r tro-r fle tive mat erial shal show no c acking or separation

from the tyr out ide a dis anc of half the width of the mat erial from the p int of imp ct

Con ition the t es sample for 1 h at a t empe atur of (− 20 ± 5) °C Immediat ely aft er r mov al from the

cold st orag e, plac the sample on a sold sup ort b se an subje t the r tro-r fle tive ar a t o an imp ct

from a 2 mm diamet er sold st eel b l dro ped from a height of 2 m

7.2.2.4 Resistanc e to fuels

Lightly rub the r tro-r fle tive ar a of the t es sample with a cott on cloth so ked in a t es fuel comp sed

of 7 % of n-heptane and 3 % of t oluene (b v lume)

Aft er 5 min clean the r tro-r fle tive ar a b washing a det erg ent solution an rinsing in clean wat er

7.2.2.5 Resistanc e to lubr icating ois

Light ly rub t h e r et ro-r fle t ive ar ea oft h e tes sam ple wit h a cot on clot h so ked in d etergent lubrica t ing oi

Aft er 5min wipe the ar a clean with a mid al phatic solvent such as heptane an folow b washing with

a neutral det erg ent an rinsing in clean wat er

7.2.2.6 Adhesion

The r tro-r fle tive mat erial shal adhe e t o the tyr in such a wa that, w hen con itioned an t est ed

as desc ibed, a gr at er for e than that spe ified shal be r q ir d t o r mo e it from the subs rat e, or the

mat erial shal br ak w hen an att empt is made t o r mo e it

Con ition the t es samplefor 3 min at a t empe atur of (5 ± 5) °C an then for 3 min at a t empe atur

of (2 ± 5) °C

W ith a sharp k ife, separat e a s ripof the r tro-r fle tive mat erial from the tyr

Ap ly a t ensie for e of 1 N pe mi imetr of width of the s rip in a dir ction normal t o the s rip t o

att empt t o sep rat e it from the subs rat e

7.2.2.7 Abrasio resistanc e

The r tro-r fle tive mat erial shal be as r sis ant t o a rasion as is the adjac nt tyr mat erial so that

r tro-r fle tive mat erial is r mo ed from the inflat ed tyr b a rasion with wet, st eel-bris le brush,

tyr mat erial wi be r mo ed with the r tro-r fle tive mat erial

7.2.2.8 Wate test

Imme sethe t es sample for 1min in wat er with a t empe atur of (2 ± 5) °C Measur the CIL v lue 3 s

aft er r mo al:

— for α = 0 °2 ′ an β = 5° for groupA, or

— for α = 0 °1 ′ an β = −4 ° for group B

TheCIL v lue shal not be les than 5 % of the minimum v lue in 5.2