INTERNATIONAL STANDARD I NTERNATIONAL ORGANIZATION FOR STANDARDlZATlONW4E~YHAPO~HAR OPTAHC1 3A!JMR I70 CTAHAAWCr3A~W4WXlGANISATION INTERNATIONALE DENORMALISATION Personal eye protectors Ul tra violet[.]
Trang 1INTR ATIO A L O G NIZATIO FO STADR lZATlO W4EY HAO~H R OTAC13A!JMR I7 CTA AWCr3A~W4WXlG NISTIO INT RATIO AL DEN RMALISTIO
Pro tec teurs in iv id els de lei - F iltres p ur lultraviolet -
Uti sa tion et sp& i fic a tion de tra nsmis ion
F irst e itio - 19 9-0 -15
De criptors : a ccid nt p reventio , e e , optic a l fiters, ultaviolet radiatio
Pric bs d o 2 pg s
Trang 2IS0 (h Intern tio al Orga izatio for Sta d rdizatio ) is a w orldwid fe eratio
memb r b dy intereste in a s bject for which a tech ical com ite h s b e set
up h s th right to b re rese te o th t commite Intern tio al orga izatio s,
go ernme tal a d n n-go ernme tal in laiso w ith ISO, also ta e p rt in th w ork
Sta d rds by th IS0 Counci
c-irc late to th memb r b dies in Apri 19 7
It h s b e a pro e by th memb r b dies of th folowing countries :
Belgium
Isra l
Fra ce
Norway
Hungary
Roma ia
South A frica, Re of
Sp in
Sw itzerla d
Turk y
Unite Kingd m
U.S.S.R
Y ugosla ia
0 Intern tio al Orga izatio for Sta d rdizatio , 19 9 l
Printe in Sw itz rlan
Trang 3Personal eye-protectors - Ultra -v iolet fi ters - Uti isa tion and
T his Intern tio a l Sta d rd sp cifies th numb ring of, a d
tra smita ce re uireme ts for fiters for protectio against
ultra -v iolet ra iatio , It also giv s g id nce o th ir
selectio a d u e
Eye-protectors u e for protectio against ultra -v iolet
IS0 4 4 Th la tter also d als with ge eral co sid ratio s
rela ting to eye-protectors, s ch as id ntifica tio
O ptica l test meth ds for eye-protectors form th s bject
of IS0 4 5
s bject of IS0 4 5
IS0 4 0 , Personal eye-protectors - V oca ulary
IS0 4 4 , Personal eye-protectors - Sp c ific a tion , ’ )
method ,’ )
Th complete ta ble of numb ring of fiters is giv n in
clau e 3 of IS0 4 4
Th s mb l for fiters for ultra -v iolet ra ia tio includ s a
to th fiter, from 1.2 to 5 (se clau e 4 b low )
Th d finitio s of tra smita ce are giv n in IS0 4 0
clau e 5 of IS0 4 5
of a lght b am of 5 mm diameter o er th e tire are of
remain within th lmits d fin d as “rela tiv e uncertainty”
in ta ble 2 of IS0 4 5
protectio against ultra -v iolet ra iatio are giv n in ta le 1
TA L 1- T ran mitan e re uireme ts
-Scale n mber
Maximum tan mitan e in th ulta -violet
spe tum 7 (4
5 ,
0,0 0 3
2 1
0.0 0
6
0.0 0
2
17,8
8,5
8
3
Lumin u tan mitan e 7”
maximum
%
10 '
7 ,4
minimum
%
7 ,4
5 ,
T ran mitan e
in th infa -re
spe tum
No spe ifica tio
1) At pre e t at th sta ge of draft
Trang 4Ad itiona l req irements :
a) Betwe n 210 a d 313 nm, th tra smita ce sha ll
n t ex e d th v lue sp cifie for 313 nm
n t ex e d th v lue sp cifie for 3 5 nm
n t ex e d th lumin u tra smita ce
d) In th w av le gth ra ge b twe n 4 5 a d 610 nm,
th sp ctra l tra smita ce for th s ale numb rs 3 - 1.2
mita ce by more th n 7 % of th t v alue
spe ta l distibutio of i umina nt A of th CIE
For protectio against ultra -v iolet ra diatio , fiters sha ll
b selecte from th se cla ssifie by co e numb rs 2 or 3
(se ta le 2) Co e numb r 2 fiters may h v a yelowish
tinge w hich may mo ify colour p rce tio
W he it is imp rta t to h v corect colour p rce tio ,
it is prefera le to ch ose co e 3 fiters Ch ice of a s ita ble
U fiter also d p n s up n th d gre of glare
TA L 2 - Numberin properie an typica l a pplcatio s
Scale
n mber
2 - la 2
3 - 1.2
No s bstantia l mo ifica tio of c lo r perc ptio For u e with s urc s whic pro u e pre ominantly ulta-
w ork
3 - 2.0
3 - 2.5
No s bstantia l mo ifica tio of c lo r perc ptio For u e with s urc s whic pro u e both ulta -violet ra dia tio
an v isible lg t to a hig d gre (or e ample, in ulta -v iolet
ray th ra y, p ric la rly me ical teatme t
3-3 No s bsta ntia l mo ifica tio of c lo r perc ptio
For u e with hig pre s re merc ry v apo r lamps an ulta -
cia lly w he carie o t by th pa tie ts th ms lv s1
3-5
No s bsta ntia l mo ifica tio of c lo r perc ptio For u e with ulta -v iolet s urc s whic als emit a hig pro-
porio of v isible lg t (or e ample, v ry hig pre s re
merc ry v apo r lamps u e in la boratorie an me ical tea t-
me t
2