Document 3egneMMqoKEOdpZajV1rbkD4J
FILE NAME: Z/ZZZ/Ed
DATE:
DOC#: /Ed
DOCUMENT DESCRIPTION::ZZZZ/E/K^, DZZZ&DtZWZ EZDZZZZZ Z
Annals
of occ:uDat1onal hvsiene. v.Jl, no 3, 1987, pp.36.3-3'71
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62
76
88
COMPARISON OF AIA AND NIOSH METHODS ON
ASBESTOS FIBRE MEASUREMENTS IN THE WORKPLACE
--
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'""''"" '"""'''"'"'"'"I S~'""' '""'"" E. Go"-"EZFR,.soez. PACU'O 0. DE LA o.... and Fiux R. MARTINt
''"""'" Noo"' ''
"'""10. Coum '""'"' d< N"""
'3. "027 '1"1n<J. ""'" "'' ''""'" nf B;oloor.
o..,nmuo. C.U.1. An'<u J,
Jalon Unnersny of M:adnd. Spain
'"'""--lod~l '""""~''"""''of'"''"'"""'''"" _..,..,_ffi'"'"""' b> lh
conrr:is1 op11c:aJ-m1croscope merl!Od has been :iaopred by most counines. bu1 dcr.:uled proa:dures
""''' -.,",""'f"o"~o~"""o" o''"" lo '"" '"'"' wo<t "'""'"' "'""' ..,.,...., '" '"
by ''' NJOSH
'" the
''"'" M"hod P & European s1<1ndard I
CAM "9 ha\e been
'"" h< A comp:irea
IA R The
<co0n>cemnrmrau -onTs.m. .e'a"s"ur'eo
bv
the
No AIA
I ldopo<d " mcrllod were
on nera1e less than rhosc dc1crm1ned b\' rne'NT6sfi-merhod. 1hc mean rai10 AJA NIOSH bcin11
2no.;n, o< ,.,.,.," ho.,. ,,, ""'"'" o ,,.-"'"'"""' '"""'"
'"o ";
"o~ '""'"' '"""' o ''' ''"""" ""'" '"' " 'om ''' ""'""'
of mo"'"'''"' ''''"""'
tn~ Th'"'" h'e':'ia"t'n"'"'A"IA"'m"e"t no"d fhraoamn'o'e'f'fe"c"t "T"h"eseo: r"in'd"an'e"s <re2l3lrdu1no1o1. rile source oof \/a,rr<a1o1oI noa"rc"c":o'n"sm'"c"nr
labor~ron~prcpa~ea "'"h pre\ aous r('SUHs b\ ane 5.'lmc l('Jm us1n!!
s.amolcs. Ho1A.evcr. tr appears rna1
1he rcrar1onsnin ber .... cen rne mer nods ma, nor be rne s:imc for all workolaces where :is1>cs1os as founa.
'"~"'""O"' tThheA'"IA""an'a' ./,l.:,IO,,S, 'H"m''o:'rn"Od's''b"u1""al's"o"f"o'r "h'a'rm""on"rZ,.J,n'g"c'n"v"1r'o'n"m' .cn.1.a.J sr.andards. '""'""' .,
l'\'TRODUCTION
Ao" ASBESTOS fibre conccn irauons ofall types (prinopally chrysoulcI ;n worbng
emironmcnis arc generally somplcd on membrane-fillers and counted by phase. con1ras1 opucal-mocroscopy. Th;s. dcspuc us many lim11a1;ons, is <copied by moso
co" n1 "" as a ro"""' mc1hod. Expc.,cncc hs shown lha1 the method does not always
prod"cc comparable results hen "scd by dilfcrcn1 laboratories and by dilfcrem
co"ntcrs IBEl"l<ETT nd ATTFIELIJ. 1974: G1ees " a/., 1977). ii IS well known 1hao
dilfer<nccs can ansc owing 10 nUons n sampling, sJ;dc preparauon and op1<cal
co"nllng IBECKETT. invcsugauon of the
1980; inter-
a
Bc nd
srn int
r
" a-
l
al.. abor
a
1979; tory
(WALTO~. PICKfORO, 1980).
reliability
Much 1981)
of of
( h< the
m<1hod has foc"scd on the nlrucI eq"'Pmcm and methodology. However. IO
char.<1mze the <nh<rem ""brli1y of 1hc entire sampfingtanaly1;cal proccd""
fialcteororvsasnoacuho3nS.'""r-co""'" ""bHly and sampling error muso be added 10 the mira-
, Moso coun1ncs today" aucmpung 10 dc.clop a well standardized method for 'coun ung asbestos fibros ai ork places and nc rcgulahons for oa:upa11onal exposures to asbestos ro now under consodcrauon by the Commission of lhc European
Commun111cs ICECI and OcrupuonI Safo1y and Health AdminiS1ra1;on JOSHA) as
ha~ CwaerllTacssrilnngtcamnduoMnaatJcnO<irJgsanIlAZSllT1<MonJ. for S1andardiza1<on llSO) and American Society Pre.,ous studies nCS11ga1ed <be effects ofcounting rules and aspca r.uio on ~tIhea/lc'CJ9ls8a2n)c.J r<produabili1y offibrc counts JC0\\1 and CR"'-n. 1982; CuWRJRD
A >mpanson JGoxz.tEZ-FR-.,o,, and MTix. 1986) bei.'Cen the coun1in@
363
.-... 1111r:or.r.,A THfQlJf .._'j:;~ ..t.,. 1 0 RECHfACMI S:.;:; -,MIANT(