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GB/T 4701.12-2024: Ferrotitanium - Determination of titanium content - Diantipyrylmethane spectrophotometric method
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Ferrotitanium - Determination of titanium content - Diantipyrylmethane spectrophotometric method
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GB/T 4701.12-2024
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Basic data | Standard ID | GB/T 4701.12-2024 (GB/T4701.12-2024) | | Description (Translated English) | Ferrotitanium - Determination of titanium content - Diantipyrylmethane spectrophotometric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H11 | | Classification of International Standard | 77.100 | | Word Count Estimation | 10,166 | | Date of Issue | 2024-04-25 | | Date of Implementation | 2024-11-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 4701.12-2024: Ferrotitanium - Determination of titanium content - Diantipyrylmethane spectrophotometric method
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ICS 77:100
CCSH11
National Standards of People's Republic of China
Determination of titanium content in titanium-iron-diantipyrinyl methane
Spectrophotometry
Released on 2024-04-25
2024-11-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents"
Drafting:
This document is Part 12 of GB/T 4701: GB/T 4701 has been published in the following parts:
--- Determination of ferrotitanium content by ammonium ferric sulfate titration method;
--- Determination of ferrotitanium silicon content-Sulfuric acid dehydration gravimetric method;
--- Determination of titanium, iron and copper content by copper reagent photometry and flame atomic absorption spectrometry;
--- Determination of titanium, iron and manganese content by arsenite-nitrite titration and periodate photometry;
---Determination of titanium, iron and aluminum content-EDTA titration method;
--- Determination of phosphorus content in titanium iron-bismuth phosphide-molybdenum blue spectrophotometry and molybdenum blue spectrophotometry;
--- Determination of carbon content in ferrotitanium-infrared absorption method;
--- Determination of sulfur content in ferrotitanium by infrared absorption method and combustion neutralization titration method;
--- Determination of titanium content by diantipyrine methane spectrophotometry;
---Determination of titanium, iron, silicon, manganese, phosphorus, chromium, aluminum, magnesium, copper, vanadium and nickel content by inductively coupled plasma atomic emission spectrometry:
Please note that some of the contents of this document may involve patents: The issuing organization of this document does not assume the responsibility for identifying patents:
This document was proposed by the China Iron and Steel Association:
This document is under the jurisdiction of the National Technical Committee for Standardization of Pig Iron and Ferroalloys (SAC/TC318):
This document was drafted by: Anshan Iron and Steel Co:, Ltd:, Anhui Changjiang Iron and Steel Co:, Ltd:, Qingdao Bozheng Inspection Technology Co:, Ltd:,
Jinzhou Vanadium Industry Co:, Ltd:, Inner Mongolia Xintai Industrial Group Co:, Ltd:, Hebei Jinxi International Trade Co:, Ltd:, Metallurgical Industry Information Standard
Quasi-research institute:
The main drafters of this document are: Deng Junhua, Kang Dehua, Zhang Jie, Tang Yanxiu, Wang Lihui, Chen Rong, Zhou Ruidong, Liu Fei, Li Jinglin, Ye Xiaoshuang,
Fan, Y:, Liu, K:, and Zhang, C:
Introduction
Since there are many elements involved in the titanium iron detection process, the applicable scope and application methods of the elements are different:
The convenience and accuracy of ferrotitanium testing standards: We have established national standards to support ferrotitanium testing based on the analysis methods of different elements in ferrotitanium:
GB/T 4701 series of titanium iron analysis methods is the basic standard for titanium iron detection in my country, and is intended to consist of the following parts:
--- Part 1: Determination of titanium content in ferrotitanium - ammonium ferric sulfate titration method: The purpose is to measure the titanium content in ferrotitanium using sulfuric acid
Ammonium iron titration method:
--- Part 2: Determination of silicon content in ferrotitanium - Sulfuric acid dehydration gravimetric method: The purpose is to measure the silicon content in ferrotitanium using sulfuric acid
Dehydrated weight method:
--- Part 3: Determination of copper content of ferrotitanium by copper reagent photometry and flame atomic absorption spectrometry:
The copper content in the samples was determined by copper reagent photometry and flame atomic absorption spectrometry:
--- Part 4: Determination of titanium, iron and manganese content - Arsenite-nitrite titration and periodate photometry:
The manganese content in ferrotitanium was measured by arsenite-nitrite titration and periodate photometry:
--- Part 6: Determination of aluminum content in ferrotitanium - EDTA titration method: The purpose is to measure the aluminum content in ferrotitanium using
EDTA titration method:
--- Part 7: Determination of phosphorus content in titanium iron - Bismuth phosphide molybdenum blue spectrophotometric method and molybdenum blue spectrophotometric method:
The phosphorus content in iron was determined by bismuth phosphomolybdenum blue spectrophotometry and molybdenum blue spectrophotometry:
--- Part 8: Determination of carbon content in ferrotitanium - Infrared absorption method: The purpose is to measure the carbon content in ferrotitanium using infrared
Absorption method:
--- Part 10: Determination of sulfur content in ferrotitanium - Infrared absorption method and combustion neutralization titration method: The purpose is to measure the sulfur content in ferrotitanium:
The content was determined by infrared absorption method and combustion neutralization titration method:
--- Part 12: Determination of titanium content in ferrotitanium - diantipyrine methane spectrophotometric method:
The diantipyrin methane spectrophotometric method was used:
--- Part 13: Determination of titanium, iron, silicon, manganese, phosphorus, chromium, aluminum, magnesium, copper, vanadium and nickel contents by inductively coupled plasma atomic emission spectrometry
The purpose is to measure the content of silicon, manganese, phosphorus, chromium, aluminum, magnesium, copper, vanadium and nickel in titanium iron by inductively coupled plasma:
Electron emission spectroscopy:
Determination of titanium content in titanium-iron-diantipyrinyl methane
Spectrophotometry
Warning: Personnel using this document should have formal laboratory work experience: This document does not address all possible safety issues:
It is the responsibility of the operator to take appropriate safety and health measures and ensure that the conditions stipulated by relevant national laws and regulations are met:
1 Scope
This document describes a method for the spectrophotometric determination of titanium content using diantipyrinyl methane:
This document is applicable to the determination of titanium content in ferrotitanium: Determination range (mass fraction): 10:0%~50:0%:
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document:
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document:
GB/T 4010 Sampling and preparation of samples for chemical analysis of ferroalloys
GB/T 6379:2 Accuracy (trueness and precision) of measurement methods and results Part 2: Determination of repeatability of standard measurement methods
Basic methods of sex and reproducibility
GB/T 6682 Specifications and test methods for water used in analytical laboratories
GB/T 7729 General rules for spectrophotometric chemical analysis of metallurgical products
GB/T 8170 Rules for rounding off values and expression and determination of limit values
GB/T 12806 Laboratory glassware single-line volumetric flasks
GB/T 12807 Laboratory glassware graduated pipettes
GB/T 12808 Laboratory glassware single-line pipettes
3 Terms and definitions
There are no terms or definitions that require definition in this document:
4 Principle
The sample was decomposed with sulfuric acid and ammonium persulfate: A portion of the test solution was taken and reduced with ascorbic acid in a hydrochloric acid medium to reduce the iron and titanium ions and diantipyrine:
The yellow complex was generated by phenoxymethane, and the absorbance was measured at 435 nm to calculate the mass fraction of titanium:
5 Reagents
Unless otherwise specified, only approved analytical reagents and grade 3 or above distilled water in accordance with GB/T 6682 or other distilled water with similar purity shall be used in the analysis:
Water of comparable purity:
5:1 Ammonium persulfate:
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