Standard Number | PNS ISO/TR 20489:2021 |
---|---|
Organization | Bureau of Philippine Standards |
Level | National |
Category | Guide | Practice |
Status |
|
This Standard provides an overview of approaches of sample preparation (i.e. pre-treatment and size-fractionation) for analytical measurements applied to surface and drinking water, potentially containing relevant amounts and types of metal and metal oxide nano-objects, including collection from source and storage of samples, pre-concentration of analytes, and their fractionation.