GB/T 6730.5-2022
Iron ores—Determination of total iron content—Titrimetric methods after titanium(III) chloride reduction (English Version)

Standard No.

GB/T 6730.5-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

国家市场监督管理总局、中国国家标准化管理委员会

Latest

GB/T 6730.5-2022

Replace

GB/T 6730.5-2007

Scope

This document specifies the method for the determination of total iron content by potassium dichromate titration after reduction of iron by titanium trichloride. This document is applicable to natural iron ore, iron concentrate and agglomeration, including the determination of total iron content in sintered products. The determination range (mass fraction): 30.00%~72.00%.

GB/T 6730.5-2022 Referenced Document

• GB/T 10322.1 Iron ore sampling and sample preparation methods*， 2023-08-06 Update
• GB/T 12805 Laboratory glassware.Burettes
• GB/T 12806 Laboratory glassware.One-mark volumetric flasks
• GB/T 12808 Laboratory glass instrument single marked line pipette
• GB/T 601 Chemical reagent.Preparations of reference titration solutions
• GB/T 6682 Water for analytical laboratory use.Specification and test methods
• GB/T 6730.1 Iron ores.Preparation of predried test samples for chemical analysis
• GB/T 6730.3 Iron ores—Determination of hygroscopic moisture in analytical samples—Gravimetric, Karl Fischer and mass-loss methods
• GB/T 8170 Rules of rounding off for numerical values & expression and judgement of limiting values

GB/T 6730.5-2022 history

• 2022 GB/T 6730.5-2022 Iron ores—Determination of total iron content—Titrimetric methods after titanium(III) chloride reduction
• 2007 GB/T 6730.5-2007 Iron ores.Determination of total iron content.Titanium(Ⅲ)chloride reduction methods
• 1986 GB/T 6730.5-1986 Methods for chemical analysis of iron ores--The titanium chloride-potassium dichromate volumetric method for the determination of total iron content

GB/T 6730.5-2022 -All Parts