GB/T 1871.5-2022
Determination of magnesium oxide content for phosphate rock and concentrate—Flame atomic absorption spectrometry，volumetry and inductively coupled plasma optical emission spectrometry (English Version)

Standard No.

GB/T 1871.5-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 1871.5-2022

Replace

GB/T 1871.5-1995

Scope

This document describes flame atomic absorption spectrometry, volumetric and inductively coupled plasma emission spectrometry for the determination of magnesium oxide in phosphate rocks and concentrates. This document is applicable to the determination of magnesium oxide content in phosphate rock and phosphate concentrate products. The measurement range of each method in this document is shown in Table 1. Table 1 Measuring range of each method Measuring range (mass fraction) Method % Flame atomic absorption spectrometry 0.1~6 Volumetric method>0.5 Inductively coupled plasma emission spectrometry 0.1~15

GB/T 1871.5-2022 Referenced Document

• GB/T 1868 Phosphate rock and concentrate--Methods of sampling and preparing sample
• GB/T 1871.1-1995 Phosphate rock and concentrate--Determination of phosphrous pentoxide content--Quinoline phosphomolybate gravimetric and volumetric methods
• GB/T 6003.1 Test sieves—Technical requirements and testing—Part 1:Test sieves of metal wire cloth
• GB/T 601 Chemical reagent.Preparations of reference titration solutions
• 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
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values
• GB/T 9723 Chemical reagent.General rule for flame atomic absorption spectrometric analysis
• JY/T 0567 General rules for inductively coupled plasma optical emission spectrometry

GB/T 1871.5-2022 history

• 2022 GB/T 1871.5-2022 Determination of magnesium oxide content for phosphate rock and concentrate—Flame atomic absorption spectrometry，volumetry and inductively coupled plasma optical emission spectrometry
• 1995 GB/T 1871.5-1995 Phosphate rock and concentrate--Determination of magnesium oxide content--Flame atomic absorption spctrometric and volumetric methods

GB/T 1871.5-2022 -All Parts