NIST Temperature Scale Database (SRD 60), Version 3.0
Fixed Points Associated with a Selected Reference:
Reference:
K. H. Berry, NPL-75: A Low Temperature Gas Thermometry Scale from 2.6 K to 27.1 K, Metrologia 15, 89 (1979). (DOI:) (1979)Instruction:
|
Substance
|
Transition
|
T90 (K)
|
u(T90)
(mK) |
T-T90
(mK) |
u(T-T90)
(mK) |
u(T90) (K)
|
Eval
|
|---|---|---|---|---|---|---|---|
| e-H2 | VP1 | ||||||
| e-H2 | VP2 | ||||||
| H2 | TP | ||||||
| Pb | SC | ||||||
| Temperature Ranges | TR | 4.2 to 24.6 |