CS

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Related to caesium: caesium 137

CS

1. ISO 3166-1 alpha-2 code for Serbia and Montenegro before it separated into two independent countries. This was the code used in international transactions to and from bank accounts in Serbia and Montenegro.

2. ISO 3166-2 geocode for Serbia and Montenegro. This was used as an international standard for shipping to Serbia and Montenegro.

In both cases, the code is obsolete.
References in periodicals archive ?
The clock is one of an elite group of caesium fountain clocks that have been built by the timing labs in Europe, the United States, and Japan as their national "primary frequency standard" for the measurement of time.
This time has now been considerably reduced with the aid of a new method developed at the Physikalisch-Technische Bundesanstalt (PTB), which makes the output frequency of the caesium fountains more stable.
However, while metals such as lithium, sodium and potassium caused blue fluorescence, its reaction with caesium produced a distinctive green fluorescence.