This standard specifies the technical requirements, test methods and inspection rules for silicate semi-autogenous phosphate rock. This standard is applicable to silicate semi-self-fluxing phosphate rock used in the blast furnace production of calcium-magnesium phosphate fertilizers.
HG/T 2274-1995 history
1995HG/T 2274-1995 Silicon-magnesium semi-self-fluxing phosphate rock for calcium-magnesium phosphate fertilizer