GB/T 1877-1995
ActivePhosphate rock and concentrate--Determination of manganese oxide content--Spectrophotometric and volumetric methods
磷矿石和磷精矿中氧化锰含量的测定 分光光度法和容量法
🔗 Related Standards / 同类标准
GB/T 5463.2-1985
Technical terms of non-metallic mineral products--Talc
GB/T 5463.1-1985
Non-metallic mineral products--Commonly usedterms
GB/T 5463.3-1986
Technical terms of non-metallic mineral products--Gypsum and anhydrite
GB/T 15057.9-1994
Limestone for chemical industry--Determination of phosphorus content--Molybdenum blue spectrophotometric method
GB/T 15057.8-1994
Limestonefor chemical industry--Determination of sulfur content--Gravimetric and combustion-iodate titrimetric methods
GB/T 15057.7-1994
Limestone for chemical industry--Determination of aluminium oxide content--Chromazurol S spectrophotometric method
GB/T 15057.6-1994
Limestone for chemical industry--Determination of iron content--Phenanthroline spectrophotometric method
GB/T 15057.5-1994
Limestone for chemical industry--Determination of silicon dioxide content--Molybdenum blue spectrophotometric method