This standard specifies the method for determination of iron content in phosphorus trichloride for industrial use. This standard applies to products with iron content greater than or equal to 0.0001% in industrial phosphorus trichloride.
HG/T 4210-2011 Referenced Document
GB/T 602 Chemical reagent--Preparations of standard solutions for impurity
GB/T 603 Preparation of preparations and products used in chemical reagent test methods*, 2023-08-06 Update
GB/T 6682 Water for analytical laboratory use.Specification and test methods
HG/T 4210-2011 history
2011HG/T 4210-2011 Phosphorus trichloride for industrial use.determination of iron content-spectrophotometric method