Good practice guide for specifying manufactured nanomaterials
What does PD 6699-1 cover?
PD 6699-1:2007 provides guidance on the preparation of technical specifications for manufactured nanomaterials in order to ensure the delivery of a product that behaves in a reproducible manner. It includes guidance on specifying the physical and chemical characteristics of manufactured nanomaterials, which might affect performance or subsequent
processing.
Through a process of discussion with an expert consultative group, a guidance document has been created that contains:
- a list of material characteristics believed to have a definite influence on product performance and/or downstream processing in all areas of application and which have therefore to be controlled in order to achieve product consistency;
- further material characteristics which have a definite influence in certain areas of application;
- where the inclusion of all of these material characteristics in agreed specifications still does not ensure batch-to-batch consistency, a further list of characteristics is provided which
could be investigated;
- for all identified material characteristics, appropriate measurement methods are recommended, which separate into two categories: those generally utilizing relatively low-cost equipment,
which can be envisaged for use in routine batch quality control in an industrial environment, and those which require expensive equipment and which might therefore only be viable for use in less frequent audit checks;
- a brief description of the basis of each measurement method is provided and, wherever possible, reference is made to an appropriate source of guidance on best practice in carrying out the
test (usually an established standard); and
- where no viable or validated measurement method can currently be identified, this is also stated.
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