2015YB/T 5340-2015 Ferrophosphorus.Determination of carbon content.Gas-volumetric method
2006YB/T 5340-2006 Ferrophosphorus Chemical Analysis Method Gas Volumetric Method Determination of Carbon Content
YB/T 5340-2006 Ferrophosphorus Chemical Analysis Method Gas Volumetric Method Determination of Carbon Content has been changed from GB/T 8705.2-1988 Methods for chemical analysis of ferrophosphorus--The gasometric method for the determination of carbon content.