GB/T 22564 Fluorspar.Sampling and sample preparation
GB/T 6379.1 Accuracy(trueness and precision)of measurement methods and results Part 1:General principles and definitions
GB/T 6379.2 Accuracy(trueness and precision)of measurement methods and results-Part 2:Basic method for the determination of repeatability and reproducibility of a standard measurement method
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
GB/T 5195.16-2017 history
2017GB/T 5195.16-2017 Fluorspar—Determination of silicon, aluminum, iron, potassium, magnesium and titanium content—Inductively coupled plasma atomic emission spectrometry