1 GB/T 1868-1995 磷矿石和磷精矿采样与样品制备方法 Phosphate rock and concentrate--Methods of sampling and preparing sample

　　2 GB/T 1870-1995 磷矿石和磷精矿中水分的测定 重量法 Phosphate rock and concentrate--Determination of moisture content--Gravimetric method

　　3 GB/T 1871-1980 磷精矿和磷矿石中磷、铁、铝、钙、镁含量的分析方法 Analyses of the phosphorus, iron, aluminium, calcium and magnesium contents in phosphorus concentrates and phosphorus minerals

　　4 GB/T 1871.1-1995 磷矿石和磷精矿中五氧化二磷含量的测定 磷钼酸喹啉重量法和容量法 Phosphate rock and concentrate--Determination of phosphrous pentoxide content--Quinoline phosphomolybdate gravimetric and volumetric methods

　　5 GB/T 1871.2-1995 磷矿石和磷精矿中氧化铁含量的测定 容量法和分光光度法 Phosphate rock and concentrate--Determination of iron oxide content--Volumetric and spectrophotometric methods

　　6 GB/T 1871.3-1995 磷矿石和磷精矿中氧化铝含量的测定 容量法和分光光度法 Phosphate rock and concentrate--Determination of aluminium oxide content--Volumetric and spectrophotometric methods

　　7 GB/T 1871.4-1995 磷矿石和磷精矿中氧化钙含量的测定 容量法 Phosphate rock and concentrate--Determination of calcium oxide content--Volumetric methods

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