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BIPM (Bureau International des Poids et Measures) |
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NIST (National Institute of Standard and Technology) |
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PTB (Physikalish - Technische Bundesanstalt) |
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JQA (Japan Quality Assurance Organization) |
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JAERI (Japan Atomic Energy Research Institute) |
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JRIA (Japan Radioisotope Association) |
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IRM (Institute of Radiation Measurements) |
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Chiyoda (Chiyoda Technol Corporation) |
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RADA (Radiation Application Development Association) |