This Published Document gives guidance on assessing risks and
recognizing uncertainties in the development, manufacture and use of
nanomaterials, and on developing and implementing an effective
strategy to address and control the risks.
It is applicable to a wide range of nanomaterials and nanostructured
materials as defined in PAS 136, including nanoparticles, nanofibres,
nanopowders, nanotubes and nanowires, generically referred to as
nano-objects, as well as aggregates and agglomerates of these materials.
It also covers any material or preparation in which such nanomaterials
comprise a significant proportion. This guide is not applicable to
incidentally produced nanoparticles, such as diesel exhaust and welding
fumes.
NOTE For the purposes of this guide the terms nanoparticle and
nanomaterial are used interchangeably to refer to all of the nanomaterial
types listed above.
This Published Document recognizes that there is considerable
uncertainty about many aspects of effective risk assessment of
nanomaterials, including the hazardous potential of many types of
nanoparticles and the levels below which individuals might be exposed
with minimal likelihood of adverse health effects. The guide therefore
recommends a cautious strategy for handling and disposing of
nanomaterials.