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Precious Metals: Bharatiya Nirdeshak Dravya for Pure and Sure Jewelry

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Handbook of Metrology and Applications

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Abstract

India and China have a demand for lots of gold and silver due to their age-old customs. Also, purchasing gold and silver is considered an investment. There is a very large market for these metals and due to the unavailability of the proper knowledge and regulation, there is a possibility of rigging in this. Therefore, there is a need for government regulations that these precious metals should be sold only after testing. For testing, one needs standard equipment to calibrate the equipment reference materials. Generally, these reference materials are costly in the international market, and therefore for ease, each nation should produce its own reference materials, which should be comparable to international standards. India has taken an initiative in this direction and registered BND (Bharatiya Nirdeshaka Dravya) as Indian reference materials. In the case of Gold, the first BND was released in collaboration with the Mint, Mumbai, and, currently, 7 BNDs have been released in association with Jalan and Company, New Delhi. This chapter describes the methods and procedures in detail.

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Acknowledgment

PK thanks DST-SERB for the Ramanujan Fellowship grant (SB/S2/RJN-091/2017).

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Authors and Affiliations

  1. CSIR - National Physical Laboratory, New Delhi, India

    Dinesh Singh & Pallavi Kushwaha

  2. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India

    Dinesh Singh & Pallavi Kushwaha

  3. Jalan and Company, New Delhi, India

    Ishwar Jalan

  4. Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh, India

    Vidya Nand Singh & Nahar Singh

  5. Indian Reference Materials (BND) Division, CSIR - National Physical Laboratory, New Delhi, Delhi, India

    Vidya Nand Singh & Nahar Singh

Authors
  1. Vidya Nand Singh
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  2. Dinesh Singh
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  3. Pallavi Kushwaha
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  4. Ishwar Jalan
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  5. Nahar Singh
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Corresponding author

Correspondence to Vidya Nand Singh .

Editor information

Editors and Affiliations

  1. Bhabha Atomic Research Centre, Mumbai, Maharashtra, India

    Dinesh K. Aswal

  2. Physico-Mechanical Metrology, CSIR - National Physical Laboratory, New Delhi, Delhi, India

    Sanjay Yadav

  3. National Metrology Institute of Japan, National Institute of Advanced Industrial, Ibaraki, Japan

    Toshiyuki Takatsuji

  4. National Institute of Standards and Tech, Gaithersburg, MD, USA

    Prem Rachakonda

  5. Mechanical Engineering Department, National Institute of Technology, Delhi, India

    Harish Kumar

Section Editor information

  1. CSIR-National Physical Laboratory, New Delhi, India

    Nahar Singh PhD

  2. Physico-Mechanical Metrology Division, CSIR-National Physical Laboratory, New Delhi, Delhi, India

    Sanjay Yadav

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© 2023 Springer Nature Singapore Pte Ltd.

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Singh, V.N., Singh, D., Kushwaha, P., Jalan, I., Singh, N. (2023). Precious Metals: Bharatiya Nirdeshak Dravya for Pure and Sure Jewelry. In: Aswal, D.K., Yadav, S., Takatsuji, T., Rachakonda, P., Kumar, H. (eds) Handbook of Metrology and Applications. Springer, Singapore. https://doi.org/10.1007/978-981-99-2074-7_30

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