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U.S. Department of Health and Human Services

Recognized Consensus Standards: Medical Devices
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Part B: Supplementary Information Sheet (SIS)
FR Recognition List Number 057 Date of Entry 12/20/2021 
FR Recognition Number 18-20
Standard
ASTM  E3275-21
Standard Guide for Visualization and Identification of Nanomaterials in Biological and Nonbiological Matrices Using Darkfield Microscopy/Hyperspectral Imaging (DFM/HSI) Analysis
Scope/Abstract
1.1 This guide has been prepared to familiarize laboratory scientists with the background information and technical content necessary to image and identify engineered nanomaterials (ENMs) in cells via darkfield microscopy/hyperspectral imaging(DFM/HSI) methodology.

1.2 DFM/HSI is a hyphenated bioanalytical technique/tool that combines optical microscopy with high-resolution spectral imaging to both spatially localize the distribution of and identify ENMs within a suitably prepared test sample.
Extent of Recognition
Complete standard
Rationale for Recognition
This standard is relevant to medical devices and is recognized on its scientific and technical merit and/or because it supports existing regulatory policies.
Relevant FDA Guidance and/or Supportive Publications*
Guidance for Industry: Considering Whether an FDA-Regulated Product Involves the Application of Nanotechnology, Issued June 2014

Appropriate Use of Voluntary Consensus Standards in Premarket Submissions for Medical Devices - Guidance for Industry and Food and Drug Administration Staff, issued September 2018.
FDA Technical Contacts
 Peter L. Goering
  FDA/OC/CDRH/OSEL/DBCMS/
  301-796-0253
  Peter.Goering@fda.hhs.gov
 Jiwen Zheng
  FDA/OC/CDRH/OSEL/DBCMS/
  301-796-3352
  jiwen.zheng@fda.hhs.gov
Standards Development Organization
ASTM ASTM International http://www.astm.org/
FDA Specialty Task Group (STG)
Nanotechnology
*These are provided as examples and others may be applicable.
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