General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest
GB/T 1877-1995
Replace
GB 1877-1980
Scope
This standard specifies the potassium periodate spectrophotometric method for the determination of manganese oxide content. This standard applies to the determination of 0.01% to 1.5% manganese oxide content in phosphate rock and phosphate concentrate products.
GB/T 1877-1995 history
1995GB/T 1877-1995 Phosphate rock and concentrate--Determination of manganese oxide content--spectrophotometric and volumetric methods