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Recalibration of the U.S. National Prototype Kilogram
The U.S. national prototype kilogram, K20, and its check standard, K4, were recalibrated at the Bureau International des Poids et Mesures (BIPM). Both these kilograms are made of platinum-iridium alloy. Two additional kilograms, made of different alloys of stainless steel, were also included in the...
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| Pubblicato in: | J Res Natl Bur Stand (1977) |
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| Autore principale: | |
| Natura: | Artigo |
| Lingua: | Inglês |
| Pubblicazione: |
National Institute of Standards and Technology
1985
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| Soggetti: | |
| Accesso online: | https://ncbi.nlm.nih.gov/pmc/articles/PMC6664201/ https://ncbi.nlm.nih.gov/pubmed/34566154 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.6028/jres.090.015 |
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