NIST-SS26-08 6640 / 334516 Primary POC: Liz Timberlake (Elizabeth.timberlake@nist.gov) Secondary POC: Tracy Retterer (tracy.retterer@nist.gov) Title: A set of Am-241 sources BACKGROUND ***THIS IS A SOURCES SOUGHT NOTICE*** The National Institute of Standards and Technology (NIST) is seeking information from sources that may be capable of providing a A set of Am-241 sources. The North American Industry Classification System (NAICS) code for this acquisition is 334516. NIST has a need for a A set of Am-241 sources that meets or exceeds the following draft minimum specifications: The Contractor shall provide 4 Am-241 sources that meet the following minimum specifications: A set of Am-241 sources. Description: Anodized aluminum alpha reference sources Quantity: 4 Technical Specifications Overall dimensions 219 mm x 143 mm x 6.35 mm Active dimensions 203 mm x 127 mm Activity within +30%/-30% 4 packages sturdy enough for shipping, one for each source NIST conducted market research from March through May of 2026 by attending conferences, speaking with colleagues, performing internet searches, and speaking with vendors to determine what sources could meet NIST's minimum requirements. HOW TO RESPOND TO THIS NOTICE In responding to this notice, please DO NOT PROVIDE PROPRIETARY INFORMATION. Please include only the following information, readable in either Microsoft Word 365, Microsoft Excel 365, or .pdf format, in the response. Submit the response by email to the Primary Point of Contact and, if specified, to the Secondary Point of Contact listed at the bottom of this notice as soon as possible, and preferably before the closing date and time of this notice. Provide the complete name of your company, address, name of contact for follow-up questions, their email, their phone number and, if your company has an active registration in https://sam.gov, your company's Unique Entity ID (UEI). Details about what your company is capable of providing that meets or exceeds NIST's minimum requirements. Whether your company is an authorized reseller of the product or service being cited and evidence of such authorization. Identify any aspects of the description of the requirements in the BACKGROUND section above that could be viewed as unduly restrictive or create unnecessary barriers that adversely affect your firm's ability to fully participate in a procurement for such services and explain why. Please offer suggestions for how the requirements could be organized or structured to encourage the participation of small businesses. For the NAICS code Indicate whether your company is (a) a small business or (b) other than small business. See the Table of Small Business Size Standards and the associated .pdf download file for small business size standards and additional information. If you believe the NAICS code listed in this notice is not the best NAICS code for the type of product addressed in this notice, identify an alternati…