Resolution 1 of the 16th CGPM (1979)
The 16th Conférence Générale des Poids et Mesures (CGPM),
- that the accuracy of mass measurements rests upon the perfect conservation of kilogram standards, in particular platinum iridium prototype Kilograms,
- that the transmission of this accuracy to kilogram standards made of other materials such as stainless steels is limited by an insufficient knowledge of the air buoyancy correction,
- that this air buoyancy correction is usually calculated on the basis of ambient conditions, but there exist significant differences between the formulas used for this calculation among the different laboratories,
- that laboratories study the effects of ambient conditions upon kilogram standards and the methods for improving their conservation,
- that laboratories intensify their work aimed at an improved determination of the air buoyancy correction.