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PBT assessment

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PBT assessment: overall result

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Name:
Boundary composition/Multi-Walled Carbon Nanotubes (MWCNT), synthetic graphite in tubular shape
Type of composition:
boundary composition of the substance
State / form:
solid: nanomaterial
Reference substance:
Composition 1
Shape:
nanofiber
Remarks:
entangled
x Dimension:
>= 0 - <= 15 μm
y Dimension:
>= 0 - <= 30 nm
Surface treatment applied:
none
Name:
Serie 8000/Multi-Walled Carbon Nanotubes (MWCNT), synthetic graphite in tubular shape
Type of composition:
legal entity composition of the substance
State / form:
solid: nanomaterial
Related composition:
Composition 14
Reference substance:
Composition 1
Shape:
nanofiber
Remarks:
entangled
x Dimension:
>= 5 - <= 15 μm
y Dimension:
>= 4 - <= 19 nm
Specific surface area:
>= 500 m²/g
Surface treatment applied:
none
Name:
Serie NC7000-3100 / Multi-Walled Carbon Nanotubes (MWCNT), synthetic graphite in tubular shape
Type of composition:
legal entity composition of the substance
State / form:
solid: nanomaterial
Related composition:
Composition 14
Reference substance:
Composition 1
Shape:
nanofiber
Remarks:
entangled
x Dimension:
>= 0.2 - <= 5 μm
y Dimension:
>= 3 - <= 20 nm
Specific surface area:
ca. 250 m²/g
Surface treatment applied:
none
PBT status:
PBT assessment does not apply
Justification:

According to Annex XIII of Regulation (EC) No 1907/2006, the criteria for the identification of persistent, bioaccumulative and toxic susbtances and very persistent and very bioaccumulative substances do not apply to inorganic susbtances. Thus Multi-Walled Carbon Nanotubes are not considered as PBT or vPvB.