CEN ISO/TS 12025 Nanomaterials - Quantification of nano-object release from powders by generation of aerosols
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European Committee for Standardization
Nanomaterials - Quantification of nano-object release from powders by generation of aerosols
N CEN ISO/TS 12025
Annotation
This Technical Specification provides methodology for the quantification of nano-object release from powders as a result of treatment, ranging from handling to high energy dispersion, by measuring aerosols liberated after a defined aerosolization procedure. In addition to information in terms of mass, the aerosol is characterized for particle concentrations and size distributions. This Technical Specification provides information on factors to be considered when selecting from the available methods for powder sampling and treatment procedures and specifies minimum requirements for test sample preparation, test protocol development, measuring particle release and reporting data. In order to characterize the full size range of particles generated, the measurement of nano-objects as well as agglomerates and aggregates is recommended in this Technical Specification.
This Technical Specification does not include the characterization of particle sizes within the powder. Tribological methods are excluded where direct mechanical friction is applied to grind or abrade the material.
Автоматический перевод:
Наноматериалы - Определение количества нано объектного выпуска от порошков генерацией аэрозолей
Эта Техническая характеристика обеспечивает методологию для определения количества нано объектного выпуска от порошков в результате обработки, в пределах от обработки к высокоэнергетической дисперсии, путем измерения аэрозолей, освобожденных после определенной процедуры аэрозолизации. В дополнение к информации с точки зрения массы аэрозоль характеризуется для концентраций частицы и распределений размера. Эта Техническая характеристика предоставляет информацию о факторах, которые рассмотрят при отборе из доступных методов для порошковой выборки и лечебных процедур, и определяет минимальные требования для испытательной подготовки к образцу, испытательного развития протокола, измеряя выпуск частицы и сообщая о данных. Для охарактеризования ряда в натуральную величину сгенерированных частиц, измерение нано объектов, а также агломераты и агрегаты рекомендуется в этой Технической характеристике.
