This section specifies the method for determining the content of boron trioxide by inductively coupled plasma atomic emission spectrometry (ICP-AES). This section is applicable to the determination of boron trioxide content in mold powder. The measurement range (mass fraction) is: 0. 05% ~ 12. 0%.
GB/T 12808 Laboratory glass instrument single marked line pipette*, 2016-07-01 Update
GB/T 2007.2 General rules for the sampling and sample preparation of minerals in bulk--Manual method of sample preparation
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