2015YB/T 5341-2015 Ferrophosphorus.Determination of sulfur content.The infrared absorption method
2006YB/T 5341-2006 Ferrophosphorus Chemical Analysis Method Infrared Absorption Method Determination of Sulfur Content
YB/T 5341-2006 Ferrophosphorus Chemical Analysis Method Infrared Absorption Method Determination of Sulfur Content has been changed from GB/T 8705.3-1988 Methods for chemical analysis of ferrophosphorus--The infrared absorption method for the determination of carbon content.