Image:Prototype mass drifts.jpg
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Summary
A graph of the relative change in mass of selected kilogram prototypes. From The Third Periodic Verification of National Prototypes of the Kilogram (1988–1992), G. Girard, Metrologia 31 (1994) 317–336
- The IPK is represented by the stylized K in an old-English typeface.
- No. 39, which lost 665 µg relative to the IPK, had originally been allocated to Japan in 1894. In 1958, following the Second World War, it was ceded to the Republic of Korea.
- No. 23 was allocated to Finland in 1890.
- No. 8(41) was accidentally stamped with the number 41, but its accessories carry the proper number 8: since there is no prototype marked 8, this prototype is referred to as 8(41).
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File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 17:12, 11 December 2007 | 790×500 (202 KB) | Greg L ( Talk | contribs) | |
| revert | 17:03, 11 December 2007 | 790×500 (202 KB) | Greg L ( Talk | contribs) | |
| revert | 04:41, 11 December 2007 | 790×500 (202 KB) | Greg L ( Talk | contribs) | |
| revert | 07:27, 10 December 2007 | 790×500 (189 KB) | Greg L ( Talk | contribs) | |
| revert | 07:16, 10 December 2007 | 790×500 (179 KB) | Greg L ( Talk | contribs) | |
| revert | 04:22, 10 December 2007 | 790×500 (190 KB) | Greg L ( Talk | contribs) | (A graph of the relative change in mass of selected kilogram prototypes. From ''The Third Periodic Verification of National Prototypes of the Kilogram (1988–1992)'', G. Girard, Metrologia '''31''' (1994) 317–336) |
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| Orientation | Normal |
|---|---|
| Horizontal resolution | 72 dpi |
| Vertical resolution | 72 dpi |
| Software used | Adobe Photoshop CS2 Macintosh |
| File change date and time | 09:09, 11 December 2007 |
| Colour space | 65535 |
Categories: Self-published work | GFDL images