GB/T 40311-2021 (English Version) PDF

Scope: This document describes the determination of silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, manganese oxide, vanadium pentoxide, titanium dioxide, and Chromium, phosphorus and total iron content. This document is applicable to the determination of multiple elements in vanadium slag. The determination range of each element (mostly calculated as oxides) is shown in Table 1. Table 1 Measuring range Measuring range (mass fraction) Composition % Silicon dioxide (SiO2) 5.0~25.0 Calcium oxide (CaO) 1.0~10.0 Aluminum oxide (Al2O3) 1.0~10.0 Magnesium oxide (MgO) 0.50~10.0 Dioxide pentoxide Vanadium (V2O5 )2.

GB/T 40311-2021 Referenced Document

GB/T 16597 Analytical methods of metallurgical products—General rule for X-ray fluorescence spectrometric methods
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
YB/T 008 Vanadium slag

2021 GB/T 40311-2021 Vanadium slag—Determination of multi-element contents—Wavelength dispersive X-ray fluorescence spectrometry(fused cast bead method)