SDS

SECTIONVIII–EXPOSURECONTROLS/PERSONALPROTECTION
AirborneOELsforComponentsofNaturalStone:
COMPONENT(S)CHEMICALNAME
SiliconDioxide,SiO2
AluminumOxide,Al2O3
FerrousOxide,FeO
FerricOxide,Fe2O3
MagnesiumOxide,MgO
CalciumOxide,CaO
SodiumOxide,Na2O(5)
PotassiumOxide,K2O
TitaniumOxide,TiO2
MSHA/OSHAPEL
(R)10mg/m3/(%SiO2+2)§
(T)15mg/m3,(R)5mg/m3

(2)10mg/m3
(4)15mg/m3
5mg/m3
2mg/m3

15mg/m3
ACGIHTLVTWA
(R)0.025mg/m3#
(1)(R)1mg/m3

(R)5mg/m3
(I)10mg/m3
2mg/m3
(C)2mg/m3
(6)(C)2mg/m3
10mg/m3
§:Crystallinesilicaisnormallymeasuredasrespirabledust.TheOSHA/MSHAstandardalsopresentsaformulaforcalculationofthe
PELbasedontotaldust:30mg/m3/(%SiO2+2).TheOSHA/MSHAPELlistedisfordustcontainingcrystallinesilica(quartz)andis
basedonthesilicacontentoftherespirabledustsample.TheOSHA/MSHAPELforcrystallinesilicaastridymiteandcristobaliteis
onehalfthePELforcrystallinesilica(quartz).
#TheACGIHandNIOSHlimitsareforcrystallinesilica(quartz),independentofthedustconcentration.TheACGIHTLVforcrystalline
silicaascristobaliteisequaltotheTLVforcrystallinesilicaasquartz.In2005,ACGIHwithdrewtheTLVforcrystallinesilicaas
tridymite.RefertoSectionXforthermalstabilityinformationforcrystallinesilica(quartz).
(1):LimitsbasedonAluminumMetalandInsolubleCompounds.
(2):AsIronOxideFume.
(3):Dustandfume,asIron
(4):AsMagnesiumOxideFumeTotalParticulate.
(5):BasedonSodiumHydroxide.
(6):BasedonPotassiumHydroxide.
(R):RespirableFraction.
(T):TotalDust.
(I):InhalableFraction.
(C):CeilingLimit
AirborneOELsforInert/NuisanceDust:
Standard
RespirableDust
TotalDust
MSHA/OSHAPEL
(asInertorNuisanceDust)
5mg/m3
15mg/m3
ACGIHTLV(asParticlesNotOtherwise
Specified
3mg/m3
*10mg/m3
NIOSHREL
(ParticulatesNotOtherwiseRegulated)


Note:ThelimitsforInertDustareprovidedasguidelines.Nuisancedustislimitedtoparticulatesnotknowntocausesystemic
injuryorillness.
* TheTLVprovidedisforinhalableparticlesnototherwisespecified.
ENGINEERINGCONTROLS:
Ventilation:Uselocalexhaust,generalventilationornaturalventilationadequatetomaintainexposuresbelowappropriateexposure
SafetyDataSheet(SDS)NaturalStoneasofJune1,2015 page4of9