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Scale differences at four reference temperatures
| Point | t68, °C | (tth − t68)> °C | Random, °C (3 s.d.) | Systematic, °C (3 s.d.) |
| Steam | 100 | −0.0252 | ±0.0018 | ±0.00054 |
| Tin | 231.9681 | −0.0439 | ±0.0022 | ±0.0015 |
| Zinc | 419.58 | −0.0658 | ±0.0028 | ±0.0028 |
| 457 | −0.0794 | ±0.0028 | ±0.0031 |
