Skip to Main Content
Search
Recently Searched
    • Store Image Profile Picture Image
      • Edit Page
      • MyNEMA
      • Settings
      • Log Out
      Store Image Login
      • NEMA
      • Standards
      • Determination of certain substances in electrotechnical products - Part 7-2: Hexavalent chromium - Determination of hexavalent chromium (Cr(VI)) in polymers and electronics by the colorimetric method
        • Store Icon White Profile Picture Image
          • Edit Page
          • MyNEMA
          • Settings
          • Log Out
          Store Image Login
      • About
        • About NEMA
        • Careers
        • NEMA Leadership
        • Board of Directors
        • Programs & Events

          2024 Review

      • Membership
        • NEMA Committees & Coalitions
        • NEMA Academy
        • Product Sections
        • Membership Directory
        • Advocacy
          • Action Center
          • Cybersecurity Council Government Relations Subcommittee
          • Healthcare
          • Economic Impact
          • NEMA Mexico
          • Storm Reconstruction Toolkit
          • Contact Us
          • Energy Policy
          • Infrastructure
          • International Trade
          • NEMA Political Action Committee (PAC)
          • Send me the latest news!
          • Regulatory Comments
          • Environmental Stewardship
          • The Energy Transition
          • Make It American Resource Center
          • Policy Trackers

            Read about NEMA Advocacy Efforts in Washington Watch

        • Intelligence
          • NEMA’s Guide to the Electroindustry
          • Economic Impact
          • electroindustry Business Conditions Index
          • NEMA’s Economic Suite
          • Lamp Indices
          • Send me the latest news!

            Get the Latest Electroindustry Business Conditions Indices

        • Standards
          • All Standards
          • Code Alerts
          • Patent Disclosure Policy
          • Standards Store
          • Send me the latest news!
          • All Standards by Product
          • International Activities
          • Technical Field Representative Program
          • White Papers
          • About NEMA Standards
          • Publicaciones en Español
          • Technical Services
          • Why Standards
          • News & Trends
            • Blog
            • Awards
            • Podcast
            • Advertise with NEMA
            • NEMA News
            • Send me the latest news!
            • DICOM
            • MITA
            • More
              Intelligence
              Standards
              News & Trends
              DICOM
              MITA

            Data saved successfully.

            Data saved successfully.

             
            1. NEMA
            2. Standards
            3. Determination of certain substances in electrotechnical products - Part 7-2: Hexavalent chromium - Determination of hexavalent chromium (Cr(VI)) in polymers and electronics by the colorimetric method
            Standards Publication

            Determination of certain substances in electrotechnical products - Part 7-2: Hexavalent chromium - Determination of hexavalent chromium (Cr(VI)) in polymers and electronics by the colorimetric method

            NEMA 62321-7-2:2017 | Status: Active | ID: 100998

            IEC 62321-7-2:2017 describes procedures to measure hexavalent chromium, Cr(VI), quantitatively in samples of polymers and electronics. This method employs organic solvent to dissolve or swell the sample matrix, followed by an alkaline digestion procedure to extract Cr(VI) from samples. Studies have shown that organic/alkaline solution is more effective than acidic solution in extracting Cr(VI) from soluble and insoluble samples. Minimal reduction of Cr(VI) to Cr(III) or oxidation of Cr(III) to Cr(VI) occurs under alkaline conditions. The first edition of IEC 62321:2008 was a ‘stand-alone’ standard that included an introduction, an overview of test methods, a mechanical sample preparation as well as various test method clauses. This first edition of IEC 62321-7-2 is a partial replacement of IEC 62321:2008, forming a structural revision and generally replacing Annex C. IEC 62321-7-2 is the final replacement part of the corresponding clauses in IEC 62321:2008.

            Published Date: April 3, 2023

            Number of pages: 16

            Staff Contact: Brian Marchionini

            Download Standard

            Terms & Conditions
            To display, copy and/or download a copy of the document you have requested, NEMA's permission is subject to the following terms and conditions, which you must agree to by clicking on the "I Accept" button below:

            1. I agree not to alter the publication in any way and agree not to change its electronic format.
            2. I agree not to sell or offer for sale the publication for a price or any other consideration.
            3. I agree not to display the publication on a public website or distribute the publication from a public website.
            4. I acknowledge that the copyright to this document belongs to the National Electrical Manufacturers Association (NEMA), and that said copyright owner may revoke its permission or modify any of the foregoing terms and conditions at any time.
            5. I have read NEMA's  Privacy Policy and voluntarily consent to the collection, storage, and use of my personal data provided to NEMA as described in the Privacy Policy.

            Related Publications

            Standard

            Standards Publication

            NEMA 62321-7-1:2015

            Determination of certain substances in electrotechnical products - Part 7-1: Hexavalent chromium - Presence of hexavalent chromium (Cr(VI)) in colourless and coloured corrosion-protected coatings on metals by the colorimetric method

            Keywords

            DETERMINATION OF CERTAIN SUBSTANCES IN ELECTROTECHNICAL PRODUCTS; HEXAVALENT CHROMIUM (CR(VI)) IN POLYMERS AND ELECTRONICS BY THE COLORIMETRIC METHOD

            Topics

            • Industrial Products & Systems
            Contact Us

            Ads

            logo
            • Facebook fb-icon
            • Twitter twitter-icon
            • Blog bing-icon
            • YouTube youtube-icon
            • Podcast rss-icon
            • LinkedIn linkedin-icon
            • About
            • Membership
            • Advocacy
            • Intelligence
            • MITA
            • News & Trends
            • Standards
            • Store
            Information
            Contact Us
            Home
            Privacy Policy
            Site Map
            Terms & Conditions
            Quick Links
            Environmental Stewardship
            Field Representative Program
            Find a Manufacturer
            Find a Standard
            High Performance Buildings Initiative
            NEMA Staff Login
            Intelligence Portal
            International Activities
            NEMA Membership Inquiry
            MyNEMA
            NEMA Premium