This is a replica showing the size and shape of the kilogram standard. The replica is in a glass dome. The standard for the kilogram unit of mass is a cylinder of platinum-iridium alloy kept by the International Bureau of Weights and Measures near Paris. A duplicate kept at National Institute of Standards and Technology serves as the mass standard for the United States.
| px | px | dpi | = | cm | x | cm | = | MB |
Details
Creative#:
TOP22170564
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
No
Right to Privacy:
No
Same folder images:
20thcenturynistnationalinstituteofstandardsandtechnologynbsnationalbureauofstandardsmetrictreatyof1875cylindricalcylinderplatinum-iridiummassmeasurementweights&measuresweightweightsandmeasuresmeasuresweightsmetricstandardsweightstandardsmetricmetricsystemkilokilogramkilogramno.20nationalstandardofmasshistoricalhistorichistoryscienceofmeasurementmetrologyscience
&20187520thandandbureaucenturycylindercylindricalhistorichistoricalhistoryinstitutekilokilogramkilogrammassmassmeasurementmeasurementmeasuresmeasuresmeasuresmetricmetricmetricmetricmetrologynationalnationalnationalnbsnistno.ofofofofofplatinum-iridiumsciencesciencestandardstandardsstandardsstandardsstandardssystemtechnologytreatyweightweightweightsweightsweights
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