U22


 * Standard on Our Everday Life**


 * Mobile Phone (Senay)
 * Modern standards in day to day life, introducing the rail gauge (Alex) ver 1.1 done, please QC the page again
 * Voltage (Sanju)
 * Road (Driving Side) (Felik)
 * Building (Guy)
 * Petroleum standard(Jacinta)
 * Drinking Water (He)
 * Paper Size (Arzu)
 * Measuring standards in every day life (Alina)
 * European Emission Standards(Arsen)
 * Diamond Standard (Wujing)
 * International Standard Book Number (ISBN) (Ye)

Title

Short description

History

Author/background

Importance

On change the standard