The NIST Reference on Constants, Units and Uncertainty

Fundamental Physical Constants
Constants
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conventional value of ohm-90
 ${\it \Omega}_{90}$
 Numerical value  1.000 000 017 79... OmegaRed
 Standard uncertainty  (exact)
  Relative standard uncertainty  (exact)
 Concise form  1.000 000 017 79... Omega    
 
Click here for correlation coefficient of this constant with other constants
Source: 2018 CODATA     
recommended values 		 Definition of
uncertainty 		      Correlation coefficient with
any other constant

 
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