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What is BS EN ISO 15550:2012?

BS EN ISO 15550:2012 is an international standard that pertains to the characterization of nanomaterials. It provides guidelines for the determination of particle size distribution, chemical composition analysis, and surface chemistry evaluation of nanomaterials. This standard plays a crucial role in ensuring the quality control and safety assessment of nanomaterials used in various industries.

Particle Size Distribution Analysis

The first aspect covered by BS EN ISO 15550:2012 is the determination of particle size distribution of nanomaterials. This is achieved through advanced analytical techniques such as scanning electron microscopy (SEM) or transmission electron microscopy (TEM). By analyzing the size distribution, researchers can identify the physical characteristics of nanomaterials, including particle size, shape, and agglomeration level.

Chemical Composition Analysis

In addition to particle size analysis, BS EN ISO 15550:2012 also emphasizes the need for accurate chemical composition analysis of nanomaterials. Chemical techniques such as energy-dispersive X-ray spectroscopy (EDS) or X-ray photoelectron spectroscopy (XPS) are commonly employed to determine the elemental composition and chemical bonding states of nanomaterials. This information is vital for assessing the purity and potential hazards associated with specific nanomaterials.

Surface Chemistry Evaluation

The surface properties of nanomaterials play a significant role in determining their reactivity and interaction with other substances. BS EN ISO 15550:2012 recognizes the importance of evaluating the surface chemistry of nanomaterials. Techniques like Fourier-transform infrared spectroscopy (FTIR) and atomic force microscopy (AFM) are utilized to investigate the functional groups present on the nanomaterials' surface. This evaluation helps researchers understand the surface properties, stability, and potential applications of nanomaterials.


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